diff options
author | Anton Saraev <antonysaraev@gmail.com> | 2014-05-19 12:09:55 +0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-20 01:18:14 +0400 |
commit | 95f1840a7e761a86931f08c6e84f6df33333c217 (patch) | |
tree | 03509b8b8c7f4b00810ab1a7ce03718d47f8f7af /drivers/staging/skein | |
parent | 68ace624a6cd39880638311cda21efe8d507d613 (diff) | |
download | linux-95f1840a7e761a86931f08c6e84f6df33333c217.tar.xz |
staging: crypto: skein: rename camelcase vars
camelCase is not accepted in the Linux Kernel. To prepare skein
driver for mainline inclusion, we rename all vars to
non-camelCase equivalents.
Signed-off-by: Anton Saraev <antonysaraev@gmail.com>
Reviewed-by: Jake Edge <jake@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/skein')
-rw-r--r-- | drivers/staging/skein/TODO | 1 | ||||
-rw-r--r-- | drivers/staging/skein/include/skein.h | 119 | ||||
-rw-r--r-- | drivers/staging/skein/include/skeinApi.h | 28 | ||||
-rw-r--r-- | drivers/staging/skein/include/skein_block.h | 12 | ||||
-rw-r--r-- | drivers/staging/skein/include/threefishApi.h | 54 | ||||
-rw-r--r-- | drivers/staging/skein/skein.c | 415 | ||||
-rw-r--r-- | drivers/staging/skein/skeinApi.c | 102 | ||||
-rw-r--r-- | drivers/staging/skein/skeinBlockNo3F.c | 42 | ||||
-rw-r--r-- | drivers/staging/skein/skein_block.c | 125 | ||||
-rw-r--r-- | drivers/staging/skein/threefish1024Block.c | 76 | ||||
-rw-r--r-- | drivers/staging/skein/threefish256Block.c | 28 | ||||
-rw-r--r-- | drivers/staging/skein/threefish512Block.c | 44 | ||||
-rw-r--r-- | drivers/staging/skein/threefishApi.c | 60 |
13 files changed, 558 insertions, 548 deletions
diff --git a/drivers/staging/skein/TODO b/drivers/staging/skein/TODO index bc42fb8c1a0b..88a6e81145e1 100644 --- a/drivers/staging/skein/TODO +++ b/drivers/staging/skein/TODO @@ -1,6 +1,5 @@ skein/threefish TODO - - rename camelcase vars - rename files - move macros into appropriate header files - add / pass test vectors diff --git a/drivers/staging/skein/include/skein.h b/drivers/staging/skein/include/skein.h index 15ff60f63d07..deaa9c867343 100644 --- a/drivers/staging/skein/include/skein.h +++ b/drivers/staging/skein/include/skein.h @@ -33,8 +33,9 @@ #endif /* below two prototype assume we are handed aligned data */ -#define Skein_Put64_LSB_First(dst08, src64, bCnt) memcpy(dst08, src64, bCnt) -#define Skein_Get64_LSB_First(dst64, src08, wCnt) memcpy(dst64, src08, 8*(wCnt)) +#define Skein_Put64_LSB_First(dst08, src64, b_cnt) memcpy(dst08, src64, b_cnt) +#define Skein_Get64_LSB_First(dst64, src08, w_cnt) \ + memcpy(dst64, src08, 8*(w_cnt)) #define Skein_Swap64(w64) (w64) enum { @@ -63,82 +64,82 @@ enum { #define SKEIN1024_BLOCK_BYTES (8*SKEIN1024_STATE_WORDS) struct skein_ctx_hdr { - size_t hashBitLen; /* size of hash result, in bits */ - size_t bCnt; /* current byte count in buffer b[] */ - u64 T[SKEIN_MODIFIER_WORDS]; /* tweak: T[0]=byte cnt, T[1]=flags */ + size_t hash_bit_len; /* size of hash result, in bits */ + size_t b_cnt; /* current byte count in buffer b[] */ + u64 T[SKEIN_MODIFIER_WORDS]; /* tweak: T[0]=byte cnt, T[1]=flags */ }; struct skein_256_ctx { /* 256-bit Skein hash context structure */ struct skein_ctx_hdr h; /* common header context variables */ - u64 X[SKEIN_256_STATE_WORDS]; /* chaining variables */ - u8 b[SKEIN_256_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ + u64 X[SKEIN_256_STATE_WORDS]; /* chaining variables */ + u8 b[SKEIN_256_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ }; struct skein_512_ctx { /* 512-bit Skein hash context structure */ struct skein_ctx_hdr h; /* common header context variables */ - u64 X[SKEIN_512_STATE_WORDS]; /* chaining variables */ - u8 b[SKEIN_512_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ + u64 X[SKEIN_512_STATE_WORDS]; /* chaining variables */ + u8 b[SKEIN_512_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ }; struct skein1024_ctx { /* 1024-bit Skein hash context structure */ struct skein_ctx_hdr h; /* common header context variables */ - u64 X[SKEIN1024_STATE_WORDS]; /* chaining variables */ - u8 b[SKEIN1024_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ + u64 X[SKEIN1024_STATE_WORDS]; /* chaining variables */ + u8 b[SKEIN1024_BLOCK_BYTES]; /* partial block buf (8-byte aligned) */ }; /* Skein APIs for (incremental) "straight hashing" */ -int skein_256_init(struct skein_256_ctx *ctx, size_t hashBitLen); -int skein_512_init(struct skein_512_ctx *ctx, size_t hashBitLen); -int skein_1024_init(struct skein1024_ctx *ctx, size_t hashBitLen); +int skein_256_init(struct skein_256_ctx *ctx, size_t hash_bit_len); +int skein_512_init(struct skein_512_ctx *ctx, size_t hash_bit_len); +int skein_1024_init(struct skein1024_ctx *ctx, size_t hash_bit_len); int skein_256_update(struct skein_256_ctx *ctx, const u8 *msg, - size_t msgByteCnt); + size_t msg_byte_cnt); int skein_512_update(struct skein_512_ctx *ctx, const u8 *msg, - size_t msgByteCnt); + size_t msg_byte_cnt); int skein_1024_update(struct skein1024_ctx *ctx, const u8 *msg, - size_t msgByteCnt); + size_t msg_byte_cnt); -int skein_256_final(struct skein_256_ctx *ctx, u8 *hashVal); -int skein_512_final(struct skein_512_ctx *ctx, u8 *hashVal); -int skein_1024_final(struct skein1024_ctx *ctx, u8 *hashVal); +int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val); +int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val); +int skein_1024_final(struct skein1024_ctx *ctx, u8 *hash_val); /* ** Skein APIs for "extended" initialization: MAC keys, tree hashing. ** After an init_ext() call, just use update/final calls as with init(). ** -** Notes: Same parameters as _init() calls, plus treeInfo/key/keyBytes. -** When keyBytes == 0 and treeInfo == SKEIN_SEQUENTIAL, +** Notes: Same parameters as _init() calls, plus tree_info/key/key_bytes. +** When key_bytes == 0 and tree_info == SKEIN_SEQUENTIAL, ** the results of init_ext() are identical to calling init(). ** The function init() may be called once to "precompute" the IV for -** a given hashBitLen value, then by saving a copy of the context +** a given hash_bit_len value, then by saving a copy of the context ** the IV computation may be avoided in later calls. ** Similarly, the function init_ext() may be called once per MAC key ** to precompute the MAC IV, then a copy of the context saved and ** reused for each new MAC computation. **/ -int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes); -int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes); -int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes); +int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes); +int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes); +int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes); /* ** Skein APIs for MAC and tree hash: ** final_pad: pad, do final block, but no OUTPUT type ** output: do just the output stage */ -int skein_256_final_pad(struct skein_256_ctx *ctx, u8 *hashVal); -int skein_512_final_pad(struct skein_512_ctx *ctx, u8 *hashVal); -int skein_1024_final_pad(struct skein1024_ctx *ctx, u8 *hashVal); +int skein_256_final_pad(struct skein_256_ctx *ctx, u8 *hash_val); +int skein_512_final_pad(struct skein_512_ctx *ctx, u8 *hash_val); +int skein_1024_final_pad(struct skein1024_ctx *ctx, u8 *hash_val); #ifndef SKEIN_TREE_HASH #define SKEIN_TREE_HASH (1) #endif #if SKEIN_TREE_HASH -int skein_256_output(struct skein_256_ctx *ctx, u8 *hashVal); -int skein_512_output(struct skein_512_ctx *ctx, u8 *hashVal); -int skein_1024_output(struct skein1024_ctx *ctx, u8 *hashVal); +int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val); +int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val); +int skein_1024_output(struct skein1024_ctx *ctx, u8 *hash_val); #endif /***************************************************************** @@ -207,7 +208,7 @@ int skein_1024_output(struct skein1024_ctx *ctx, u8 *hashVal); #define SKEIN_CFG_STR_LEN (4*8) -/* bit field definitions in config block treeInfo word */ +/* bit field definitions in config block tree_info word */ #define SKEIN_CFG_TREE_LEAF_SIZE_POS (0) #define SKEIN_CFG_TREE_NODE_SIZE_POS (8) #define SKEIN_CFG_TREE_MAX_LEVEL_POS (16) @@ -219,46 +220,46 @@ int skein_1024_output(struct skein1024_ctx *ctx, u8 *hashVal); #define SKEIN_CFG_TREE_MAX_LEVEL_MSK (((u64)0xFF) << \ SKEIN_CFG_TREE_MAX_LEVEL_POS) -#define SKEIN_CFG_TREE_INFO(leaf, node, maxLvl) \ +#define SKEIN_CFG_TREE_INFO(leaf, node, max_lvl) \ ((((u64)(leaf)) << SKEIN_CFG_TREE_LEAF_SIZE_POS) | \ (((u64)(node)) << SKEIN_CFG_TREE_NODE_SIZE_POS) | \ - (((u64)(maxLvl)) << SKEIN_CFG_TREE_MAX_LEVEL_POS)) + (((u64)(max_lvl)) << SKEIN_CFG_TREE_MAX_LEVEL_POS)) -/* use as treeInfo in InitExt() call for sequential processing */ +/* use as tree_info in InitExt() call for sequential processing */ #define SKEIN_CFG_TREE_INFO_SEQUENTIAL SKEIN_CFG_TREE_INFO(0, 0, 0) /* ** Skein macros for getting/setting tweak words, etc. ** These are useful for partial input bytes, hash tree init/update, etc. **/ -#define Skein_Get_Tweak(ctxPtr, TWK_NUM) ((ctxPtr)->h.T[TWK_NUM]) -#define Skein_Set_Tweak(ctxPtr, TWK_NUM, tVal) { \ - (ctxPtr)->h.T[TWK_NUM] = (tVal); \ +#define Skein_Get_Tweak(ctx_ptr, TWK_NUM) ((ctx_ptr)->h.T[TWK_NUM]) +#define Skein_Set_Tweak(ctx_ptr, TWK_NUM, t_val) { \ + (ctx_ptr)->h.T[TWK_NUM] = (t_val); \ } -#define Skein_Get_T0(ctxPtr) Skein_Get_Tweak(ctxPtr, 0) -#define Skein_Get_T1(ctxPtr) Skein_Get_Tweak(ctxPtr, 1) -#define Skein_Set_T0(ctxPtr, T0) Skein_Set_Tweak(ctxPtr, 0, T0) -#define Skein_Set_T1(ctxPtr, T1) Skein_Set_Tweak(ctxPtr, 1, T1) +#define Skein_Get_T0(ctx_ptr) Skein_Get_Tweak(ctx_ptr, 0) +#define Skein_Get_T1(ctx_ptr) Skein_Get_Tweak(ctx_ptr, 1) +#define Skein_Set_T0(ctx_ptr, T0) Skein_Set_Tweak(ctx_ptr, 0, T0) +#define Skein_Set_T1(ctx_ptr, T1) Skein_Set_Tweak(ctx_ptr, 1, T1) /* set both tweak words at once */ -#define Skein_Set_T0_T1(ctxPtr, T0, T1) \ +#define Skein_Set_T0_T1(ctx_ptr, T0, T1) \ { \ - Skein_Set_T0(ctxPtr, (T0)); \ - Skein_Set_T1(ctxPtr, (T1)); \ + Skein_Set_T0(ctx_ptr, (T0)); \ + Skein_Set_T1(ctx_ptr, (T1)); \ } -#define Skein_Set_Type(ctxPtr, BLK_TYPE) \ - Skein_Set_T1(ctxPtr, SKEIN_T1_BLK_TYPE_##BLK_TYPE) +#define Skein_Set_Type(ctx_ptr, BLK_TYPE) \ + Skein_Set_T1(ctx_ptr, SKEIN_T1_BLK_TYPE_##BLK_TYPE) /* * setup for starting with a new type: - * h.T[0]=0; h.T[1] = NEW_TYPE; h.bCnt=0; + * h.T[0]=0; h.T[1] = NEW_TYPE; h.b_cnt=0; */ -#define Skein_Start_New_Type(ctxPtr, BLK_TYPE) { \ - Skein_Set_T0_T1(ctxPtr, 0, SKEIN_T1_FLAG_FIRST | \ +#define Skein_Start_New_Type(ctx_ptr, BLK_TYPE) { \ + Skein_Set_T0_T1(ctx_ptr, 0, SKEIN_T1_FLAG_FIRST | \ SKEIN_T1_BLK_TYPE_##BLK_TYPE); \ - (ctxPtr)->h.bCnt = 0; \ + (ctx_ptr)->h.b_cnt = 0; \ } #define Skein_Clear_First_Flag(hdr) { \ @@ -278,14 +279,14 @@ int skein_1024_output(struct skein1024_ctx *ctx, u8 *hashVal); #ifdef SKEIN_DEBUG /* examine/display intermediate values? */ #include "skein_debug.h" #else /* default is no callouts */ -#define Skein_Show_Block(bits, ctx, X, blkPtr, wPtr, ksEvenPtr, ksOddPtr) +#define Skein_Show_Block(bits, ctx, X, blk_ptr, w_ptr, ks_event_ptr, ks_odd_ptr) #define Skein_Show_Round(bits, ctx, r, X) #define Skein_Show_R_Ptr(bits, ctx, r, X_ptr) -#define Skein_Show_Final(bits, ctx, cnt, outPtr) -#define Skein_Show_Key(bits, ctx, key, keyBytes) +#define Skein_Show_Final(bits, ctx, cnt, out_ptr) +#define Skein_Show_Key(bits, ctx, key, key_bytes) #endif -#define Skein_Assert(x, retCode)/* ignore all Asserts, for performance */ +#define Skein_Assert(x, ret_code)/* ignore all Asserts, for performance */ #define Skein_assert(x) /***************************************************************** diff --git a/drivers/staging/skein/include/skeinApi.h b/drivers/staging/skein/include/skeinApi.h index ea54546bf030..11ecab83fea6 100644 --- a/drivers/staging/skein/include/skeinApi.h +++ b/drivers/staging/skein/include/skeinApi.h @@ -59,7 +59,7 @@ OTHER DEALINGS IN THE SOFTWARE. * * // Now update Skein with any number of message bits. A function that * // takes a number of bytes is also available. - * skein_update_bits(&ctx, message, msgLength); + * skein_update_bits(&ctx, message, msg_length); * * // Now get the result of the Skein hash. The output buffer must be * // large enough to hold the request number of output bits. The application @@ -99,8 +99,8 @@ enum skein_size { * structures as well. */ struct skein_ctx { - u64 skeinSize; - u64 XSave[SKEIN_MAX_STATE_WORDS]; /* save area for state variables */ + u64 skein_size; + u64 X_save[SKEIN_MAX_STATE_WORDS]; /* save area for state variables */ union { struct skein_ctx_hdr h; struct skein_256_ctx s256; @@ -133,13 +133,13 @@ int skein_ctx_prepare(struct skein_ctx *ctx, enum skein_size size); * * @param ctx * Pointer to a Skein context. - * @param hashBitLen + * @param hash_bit_len * Number of MAC hash bits to compute * @return * SKEIN_SUCESS of SKEIN_FAIL * @see skein_reset */ -int skein_init(struct skein_ctx *ctx, size_t hashBitLen); +int skein_init(struct skein_ctx *ctx, size_t hash_bit_len); /** * Resets a Skein context for further use. @@ -166,15 +166,15 @@ void skein_reset(struct skein_ctx *ctx); * Pointer to an empty or preinitialized Skein MAC context * @param key * Pointer to key bytes or NULL - * @param keyLen + * @param key_len * Length of the key in bytes or zero - * @param hashBitLen + * @param hash_bit_len * Number of MAC hash bits to compute * @return * SKEIN_SUCESS of SKEIN_FAIL */ -int skein_mac_init(struct skein_ctx *ctx, const u8 *key, size_t keyLen, - size_t hashBitLen); +int skein_mac_init(struct skein_ctx *ctx, const u8 *key, size_t key_len, + size_t hash_bit_len); /** * Update Skein with the next part of the message. @@ -183,13 +183,13 @@ int skein_mac_init(struct skein_ctx *ctx, const u8 *key, size_t keyLen, * Pointer to initialized Skein context * @param msg * Pointer to the message. - * @param msgByteCnt + * @param msg_byte_cnt * Length of the message in @b bytes * @return * Success or error code. */ int skein_update(struct skein_ctx *ctx, const u8 *msg, - size_t msgByteCnt); + size_t msg_byte_cnt); /** * Update the hash with a message bit string. @@ -201,11 +201,11 @@ int skein_update(struct skein_ctx *ctx, const u8 *msg, * Pointer to initialized Skein context * @param msg * Pointer to the message. - * @param msgBitCnt + * @param msg_bit_cnt * Length of the message in @b bits. */ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, - size_t msgBitCnt); + size_t msg_bit_cnt); /** * Finalize Skein and return the hash. @@ -217,7 +217,7 @@ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, * Pointer to initialized Skein context * @param hash * Pointer to buffer that receives the hash. The buffer must be large - * enough to store @c hashBitLen bits. + * enough to store @c hash_bit_len bits. * @return * Success or error code. * @see skein_reset diff --git a/drivers/staging/skein/include/skein_block.h b/drivers/staging/skein/include/skein_block.h index 41cae89ff4cc..ec787a3fbebd 100644 --- a/drivers/staging/skein/include/skein_block.h +++ b/drivers/staging/skein/include/skein_block.h @@ -12,11 +12,11 @@ #include <skein.h> /* get the Skein API definitions */ -void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd); -void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd); -void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd); +void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add); +void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add); +void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add); #endif diff --git a/drivers/staging/skein/include/threefishApi.h b/drivers/staging/skein/include/threefishApi.h index 6cdad46f19c8..37f6e63b2c30 100644 --- a/drivers/staging/skein/include/threefishApi.h +++ b/drivers/staging/skein/include/threefishApi.h @@ -18,13 +18,13 @@ * @code // Threefish cipher context data - struct threefish_key keyCtx; + struct threefish_key key_ctx; // Initialize the context - threefish_set_key(&keyCtx, Threefish512, key, tweak); + threefish_set_key(&key_ctx, Threefish512, key, tweak); // Encrypt - threefish_encrypt_block_bytes(&keyCtx, input, cipher); + threefish_encrypt_block_bytes(&key_ctx, input, cipher); @endcode */ @@ -51,7 +51,7 @@ enum threefish_size { * structures as well. */ struct threefish_key { - u64 stateSize; + u64 state_size; u64 key[SKEIN_MAX_STATE_WORDS+1]; /* max number of key words*/ u64 tweak[3]; }; @@ -63,106 +63,106 @@ struct threefish_key { * the given size. The key data must have the same length (number of bits) * as the state size * - * @param keyCtx + * @param key_ctx * Pointer to a Threefish key structure. * @param size * Which Skein size to use. - * @param keyData + * @param key_data * Pointer to the key words (word has 64 bits). * @param tweak * Pointer to the two tweak words (word has 64 bits). */ -void threefish_set_key(struct threefish_key *keyCtx, - enum threefish_size stateSize, - u64 *keyData, u64 *tweak); +void threefish_set_key(struct threefish_key *key_ctx, + enum threefish_size state_size, + u64 *key_data, u64 *tweak); /** * Encrypt Threefisch block (bytes). * * The buffer must have at least the same length (number of bits) aas the - * state size for this key. The function uses the first @c stateSize bits + * state size for this key. The function uses the first @c state_size bits * of the input buffer, encrypts them and stores the result in the output * buffer. * - * @param keyCtx + * @param key_ctx * Pointer to a Threefish key structure. * @param in * Poionter to plaintext data buffer. * @param out * Pointer to cipher buffer. */ -void threefish_encrypt_block_bytes(struct threefish_key *keyCtx, u8 *in, +void threefish_encrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, u8 *out); /** * Encrypt Threefisch block (words). * * The buffer must have at least the same length (number of bits) aas the - * state size for this key. The function uses the first @c stateSize bits + * state size for this key. The function uses the first @c state_size bits * of the input buffer, encrypts them and stores the result in the output * buffer. * * The wordsize ist set to 64 bits. * - * @param keyCtx + * @param key_ctx * Pointer to a Threefish key structure. * @param in * Poionter to plaintext data buffer. * @param out * Pointer to cipher buffer. */ -void threefish_encrypt_block_words(struct threefish_key *keyCtx, u64 *in, +void threefish_encrypt_block_words(struct threefish_key *key_ctx, u64 *in, u64 *out); /** * Decrypt Threefisch block (bytes). * * The buffer must have at least the same length (number of bits) aas the - * state size for this key. The function uses the first @c stateSize bits + * state size for this key. The function uses the first @c state_size bits * of the input buffer, decrypts them and stores the result in the output * buffer * - * @param keyCtx + * @param key_ctx * Pointer to a Threefish key structure. * @param in * Poionter to cipher data buffer. * @param out * Pointer to plaintext buffer. */ -void threefish_decrypt_block_bytes(struct threefish_key *keyCtx, u8 *in, +void threefish_decrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, u8 *out); /** * Decrypt Threefisch block (words). * * The buffer must have at least the same length (number of bits) aas the - * state size for this key. The function uses the first @c stateSize bits + * state size for this key. The function uses the first @c state_size bits * of the input buffer, encrypts them and stores the result in the output * buffer. * * The wordsize ist set to 64 bits. * - * @param keyCtx + * @param key_ctx * Pointer to a Threefish key structure. * @param in * Poionter to cipher data buffer. * @param out * Pointer to plaintext buffer. */ -void threefish_decrypt_block_words(struct threefish_key *keyCtx, u64 *in, +void threefish_decrypt_block_words(struct threefish_key *key_ctx, u64 *in, u64 *out); -void threefish_encrypt_256(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_256(struct threefish_key *key_ctx, u64 *input, u64 *output); -void threefish_encrypt_512(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_512(struct threefish_key *key_ctx, u64 *input, u64 *output); -void threefish_encrypt_1024(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_1024(struct threefish_key *key_ctx, u64 *input, u64 *output); -void threefish_decrypt_256(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_256(struct threefish_key *key_ctx, u64 *input, u64 *output); -void threefish_decrypt_512(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_512(struct threefish_key *key_ctx, u64 *input, u64 *output); -void threefish_decrypt_1024(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_1024(struct threefish_key *key_ctx, u64 *input, u64 *output); /** * @} diff --git a/drivers/staging/skein/skein.c b/drivers/staging/skein/skein.c index ac64d9f096f0..d4f3534feae0 100644 --- a/drivers/staging/skein/skein.c +++ b/drivers/staging/skein/skein.c @@ -21,17 +21,17 @@ /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a straight hashing operation */ -int skein_256_init(struct skein_256_ctx *ctx, size_t hashBitLen) +int skein_256_init(struct skein_256_ctx *ctx, size_t hash_bit_len) { union { - u8 b[SKEIN_256_STATE_BYTES]; - u64 w[SKEIN_256_STATE_WORDS]; + u8 b[SKEIN_256_STATE_BYTES]; + u64 w[SKEIN_256_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - ctx->h.hashBitLen = hashBitLen; /* output hash bit count */ + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + ctx->h.hash_bit_len = hash_bit_len; /* output hash bit count */ - switch (hashBitLen) { /* use pre-computed values, where available */ + switch (hash_bit_len) { /* use pre-computed values, where available */ case 256: memcpy(ctx->X, SKEIN_256_IV_256, sizeof(ctx->X)); break; @@ -56,7 +56,7 @@ int skein_256_init(struct skein_256_ctx *ctx, size_t hashBitLen) /* set the schema, version */ cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); cfg.w[2] = Skein_Swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); @@ -67,7 +67,7 @@ int skein_256_init(struct skein_256_ctx *ctx, size_t hashBitLen) skein_256_process_block(ctx, cfg.b, 1, SKEIN_CFG_STR_LEN); break; } - /* The chaining vars ctx->X are now initialized for hashBitLen. */ + /* The chaining vars ctx->X are now initialized for hash_bit_len. */ /* Set up to process the data message portion of the hash (default) */ Skein_Start_New_Type(ctx, MSG); /* T0=0, T1= MSG type */ @@ -76,34 +76,34 @@ int skein_256_init(struct skein_256_ctx *ctx, size_t hashBitLen) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a MAC and/or tree hash operation */ -/* [identical to skein_256_init() when keyBytes == 0 && \ - * treeInfo == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ -int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes) +/* [identical to skein_256_init() when key_bytes == 0 && \ + * tree_info == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ +int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes) { union { u8 b[SKEIN_256_STATE_BYTES]; - u64 w[SKEIN_256_STATE_WORDS]; + u64 w[SKEIN_256_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - Skein_Assert(keyBytes == 0 || key != NULL, SKEIN_FAIL); + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + Skein_Assert(key_bytes == 0 || key != NULL, SKEIN_FAIL); /* compute the initial chaining values ctx->X[], based on key */ - if (keyBytes == 0) { /* is there a key? */ + if (key_bytes == 0) { /* is there a key? */ /* no key: use all zeroes as key for config block */ memset(ctx->X, 0, sizeof(ctx->X)); } else { /* here to pre-process a key */ Skein_assert(sizeof(cfg.b) >= sizeof(ctx->X)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hashBitLen = 8*sizeof(ctx->X); + ctx->h.hash_bit_len = 8*sizeof(ctx->X); /* set tweaks: T0 = 0; T1 = KEY type */ Skein_Start_New_Type(ctx, KEY); /* zero the initial chaining variables */ memset(ctx->X, 0, sizeof(ctx->X)); /* hash the key */ - skein_256_update(ctx, key, keyBytes); + skein_256_update(ctx, key, key_bytes); /* put result into cfg.b[] */ skein_256_final_pad(ctx, cfg.b); /* copy over into ctx->X[] */ @@ -114,18 +114,18 @@ int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hashBitLen, * precomputed for each key) */ /* output hash bit count */ - ctx->h.hashBitLen = hashBitLen; + ctx->h.hash_bit_len = hash_bit_len; Skein_Start_New_Type(ctx, CFG_FINAL); /* pre-pad cfg.w[] with zeroes */ memset(&cfg.w, 0, sizeof(cfg.w)); cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); /* tree hash config info (or SKEIN_CFG_TREE_INFO_SEQUENTIAL) */ - cfg.w[2] = Skein_Swap64(treeInfo); + cfg.w[2] = Skein_Swap64(tree_info); - Skein_Show_Key(256, &ctx->h, key, keyBytes); + Skein_Show_Key(256, &ctx->h, key, key_bytes); /* compute the initial chaining values from config block */ skein_256_process_block(ctx, cfg.b, 1, SKEIN_CFG_STR_LEN); @@ -140,52 +140,53 @@ int skein_256_init_ext(struct skein_256_ctx *ctx, size_t hashBitLen, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* process the input bytes */ int skein_256_update(struct skein_256_ctx *ctx, const u8 *msg, - size_t msgByteCnt) + size_t msg_byte_cnt) { size_t n; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); /* process full blocks, if any */ - if (msgByteCnt + ctx->h.bCnt > SKEIN_256_BLOCK_BYTES) { + if (msg_byte_cnt + ctx->h.b_cnt > SKEIN_256_BLOCK_BYTES) { /* finish up any buffered message data */ - if (ctx->h.bCnt) { + if (ctx->h.b_cnt) { /* # bytes free in buffer b[] */ - n = SKEIN_256_BLOCK_BYTES - ctx->h.bCnt; + n = SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt; if (n) { /* check on our logic here */ - Skein_assert(n < msgByteCnt); - memcpy(&ctx->b[ctx->h.bCnt], msg, n); - msgByteCnt -= n; + Skein_assert(n < msg_byte_cnt); + memcpy(&ctx->b[ctx->h.b_cnt], msg, n); + msg_byte_cnt -= n; msg += n; - ctx->h.bCnt += n; + ctx->h.b_cnt += n; } - Skein_assert(ctx->h.bCnt == SKEIN_256_BLOCK_BYTES); + Skein_assert(ctx->h.b_cnt == SKEIN_256_BLOCK_BYTES); skein_256_process_block(ctx, ctx->b, 1, SKEIN_256_BLOCK_BYTES); - ctx->h.bCnt = 0; + ctx->h.b_cnt = 0; } /* * now process any remaining full blocks, directly from input * message data */ - if (msgByteCnt > SKEIN_256_BLOCK_BYTES) { + if (msg_byte_cnt > SKEIN_256_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msgByteCnt-1) / SKEIN_256_BLOCK_BYTES; + n = (msg_byte_cnt-1) / SKEIN_256_BLOCK_BYTES; skein_256_process_block(ctx, msg, n, SKEIN_256_BLOCK_BYTES); - msgByteCnt -= n * SKEIN_256_BLOCK_BYTES; + msg_byte_cnt -= n * SKEIN_256_BLOCK_BYTES; msg += n * SKEIN_256_BLOCK_BYTES; } - Skein_assert(ctx->h.bCnt == 0); + Skein_assert(ctx->h.b_cnt == 0); } /* copy any remaining source message data bytes into b[] */ - if (msgByteCnt) { - Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES); - memcpy(&ctx->b[ctx->h.bCnt], msg, msgByteCnt); - ctx->h.bCnt += msgByteCnt; + if (msg_byte_cnt) { + Skein_assert(msg_byte_cnt + ctx->h.b_cnt <= + SKEIN_256_BLOCK_BYTES); + memcpy(&ctx->b[ctx->h.b_cnt], msg, msg_byte_cnt); + ctx->h.b_cnt += msg_byte_cnt; } return SKEIN_SUCCESS; @@ -193,47 +194,47 @@ int skein_256_update(struct skein_256_ctx *ctx, const u8 *msg, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the result */ -int skein_256_final(struct skein_256_ctx *ctx, u8 *hashVal) +int skein_256_final(struct skein_256_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN_256_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN_256_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN_256_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN_256_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_256_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_256_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN_256_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN_256_BLOCK_BYTES; + n = byte_cnt - i*SKEIN_256_BLOCK_BYTES; if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN_256_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN_256_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(256, &ctx->h, n, - hashVal+i*SKEIN_256_BLOCK_BYTES); + hash_val+i*SKEIN_256_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } @@ -246,17 +247,17 @@ int skein_256_final(struct skein_256_ctx *ctx, u8 *hashVal) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a straight hashing operation */ -int skein_512_init(struct skein_512_ctx *ctx, size_t hashBitLen) +int skein_512_init(struct skein_512_ctx *ctx, size_t hash_bit_len) { union { - u8 b[SKEIN_512_STATE_BYTES]; - u64 w[SKEIN_512_STATE_WORDS]; + u8 b[SKEIN_512_STATE_BYTES]; + u64 w[SKEIN_512_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - ctx->h.hashBitLen = hashBitLen; /* output hash bit count */ + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + ctx->h.hash_bit_len = hash_bit_len; /* output hash bit count */ - switch (hashBitLen) { /* use pre-computed values, where available */ + switch (hash_bit_len) { /* use pre-computed values, where available */ case 512: memcpy(ctx->X, SKEIN_512_IV_512, sizeof(ctx->X)); break; @@ -281,7 +282,7 @@ int skein_512_init(struct skein_512_ctx *ctx, size_t hashBitLen) /* set the schema, version */ cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); cfg.w[2] = Skein_Swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); @@ -295,7 +296,7 @@ int skein_512_init(struct skein_512_ctx *ctx, size_t hashBitLen) /* * The chaining vars ctx->X are now initialized for the given - * hashBitLen. + * hash_bit_len. */ /* Set up to process the data message portion of the hash (default) */ Skein_Start_New_Type(ctx, MSG); /* T0=0, T1= MSG type */ @@ -305,34 +306,34 @@ int skein_512_init(struct skein_512_ctx *ctx, size_t hashBitLen) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a MAC and/or tree hash operation */ -/* [identical to skein_512_init() when keyBytes == 0 && \ - * treeInfo == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ -int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes) +/* [identical to skein_512_init() when key_bytes == 0 && \ + * tree_info == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ +int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes) { union { - u8 b[SKEIN_512_STATE_BYTES]; - u64 w[SKEIN_512_STATE_WORDS]; + u8 b[SKEIN_512_STATE_BYTES]; + u64 w[SKEIN_512_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - Skein_Assert(keyBytes == 0 || key != NULL, SKEIN_FAIL); + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + Skein_Assert(key_bytes == 0 || key != NULL, SKEIN_FAIL); /* compute the initial chaining values ctx->X[], based on key */ - if (keyBytes == 0) { /* is there a key? */ + if (key_bytes == 0) { /* is there a key? */ /* no key: use all zeroes as key for config block */ memset(ctx->X, 0, sizeof(ctx->X)); } else { /* here to pre-process a key */ Skein_assert(sizeof(cfg.b) >= sizeof(ctx->X)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hashBitLen = 8*sizeof(ctx->X); + ctx->h.hash_bit_len = 8*sizeof(ctx->X); /* set tweaks: T0 = 0; T1 = KEY type */ Skein_Start_New_Type(ctx, KEY); /* zero the initial chaining variables */ memset(ctx->X, 0, sizeof(ctx->X)); /* hash the key */ - skein_512_update(ctx, key, keyBytes); + skein_512_update(ctx, key, key_bytes); /* put result into cfg.b[] */ skein_512_final_pad(ctx, cfg.b); /* copy over into ctx->X[] */ @@ -342,18 +343,18 @@ int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hashBitLen, * build/process the config block, type == CONFIG (could be * precomputed for each key) */ - ctx->h.hashBitLen = hashBitLen; /* output hash bit count */ + ctx->h.hash_bit_len = hash_bit_len; /* output hash bit count */ Skein_Start_New_Type(ctx, CFG_FINAL); /* pre-pad cfg.w[] with zeroes */ memset(&cfg.w, 0, sizeof(cfg.w)); cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); /* tree hash config info (or SKEIN_CFG_TREE_INFO_SEQUENTIAL) */ - cfg.w[2] = Skein_Swap64(treeInfo); + cfg.w[2] = Skein_Swap64(tree_info); - Skein_Show_Key(512, &ctx->h, key, keyBytes); + Skein_Show_Key(512, &ctx->h, key, key_bytes); /* compute the initial chaining values from config block */ skein_512_process_block(ctx, cfg.b, 1, SKEIN_CFG_STR_LEN); @@ -368,52 +369,53 @@ int skein_512_init_ext(struct skein_512_ctx *ctx, size_t hashBitLen, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* process the input bytes */ int skein_512_update(struct skein_512_ctx *ctx, const u8 *msg, - size_t msgByteCnt) + size_t msg_byte_cnt) { size_t n; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); /* process full blocks, if any */ - if (msgByteCnt + ctx->h.bCnt > SKEIN_512_BLOCK_BYTES) { + if (msg_byte_cnt + ctx->h.b_cnt > SKEIN_512_BLOCK_BYTES) { /* finish up any buffered message data */ - if (ctx->h.bCnt) { + if (ctx->h.b_cnt) { /* # bytes free in buffer b[] */ - n = SKEIN_512_BLOCK_BYTES - ctx->h.bCnt; + n = SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt; if (n) { /* check on our logic here */ - Skein_assert(n < msgByteCnt); - memcpy(&ctx->b[ctx->h.bCnt], msg, n); - msgByteCnt -= n; + Skein_assert(n < msg_byte_cnt); + memcpy(&ctx->b[ctx->h.b_cnt], msg, n); + msg_byte_cnt -= n; msg += n; - ctx->h.bCnt += n; + ctx->h.b_cnt += n; } - Skein_assert(ctx->h.bCnt == SKEIN_512_BLOCK_BYTES); + Skein_assert(ctx->h.b_cnt == SKEIN_512_BLOCK_BYTES); skein_512_process_block(ctx, ctx->b, 1, SKEIN_512_BLOCK_BYTES); - ctx->h.bCnt = 0; + ctx->h.b_cnt = 0; } /* * now process any remaining full blocks, directly from input * message data */ - if (msgByteCnt > SKEIN_512_BLOCK_BYTES) { + if (msg_byte_cnt > SKEIN_512_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msgByteCnt-1) / SKEIN_512_BLOCK_BYTES; + n = (msg_byte_cnt-1) / SKEIN_512_BLOCK_BYTES; skein_512_process_block(ctx, msg, n, SKEIN_512_BLOCK_BYTES); - msgByteCnt -= n * SKEIN_512_BLOCK_BYTES; + msg_byte_cnt -= n * SKEIN_512_BLOCK_BYTES; msg += n * SKEIN_512_BLOCK_BYTES; } - Skein_assert(ctx->h.bCnt == 0); + Skein_assert(ctx->h.b_cnt == 0); } /* copy any remaining source message data bytes into b[] */ - if (msgByteCnt) { - Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES); - memcpy(&ctx->b[ctx->h.bCnt], msg, msgByteCnt); - ctx->h.bCnt += msgByteCnt; + if (msg_byte_cnt) { + Skein_assert(msg_byte_cnt + ctx->h.b_cnt <= + SKEIN_512_BLOCK_BYTES); + memcpy(&ctx->b[ctx->h.b_cnt], msg, msg_byte_cnt); + ctx->h.b_cnt += msg_byte_cnt; } return SKEIN_SUCCESS; @@ -421,47 +423,47 @@ int skein_512_update(struct skein_512_ctx *ctx, const u8 *msg, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the result */ -int skein_512_final(struct skein_512_ctx *ctx, u8 *hashVal) +int skein_512_final(struct skein_512_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN_512_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN_512_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN_512_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN_512_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_512_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_512_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN_512_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN_512_BLOCK_BYTES; + n = byte_cnt - i*SKEIN_512_BLOCK_BYTES; if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN_512_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN_512_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(512, &ctx->h, n, - hashVal+i*SKEIN_512_BLOCK_BYTES); + hash_val+i*SKEIN_512_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } @@ -474,17 +476,17 @@ int skein_512_final(struct skein_512_ctx *ctx, u8 *hashVal) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a straight hashing operation */ -int skein_1024_init(struct skein1024_ctx *ctx, size_t hashBitLen) +int skein_1024_init(struct skein1024_ctx *ctx, size_t hash_bit_len) { union { - u8 b[SKEIN1024_STATE_BYTES]; - u64 w[SKEIN1024_STATE_WORDS]; + u8 b[SKEIN1024_STATE_BYTES]; + u64 w[SKEIN1024_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - ctx->h.hashBitLen = hashBitLen; /* output hash bit count */ + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + ctx->h.hash_bit_len = hash_bit_len; /* output hash bit count */ - switch (hashBitLen) { /* use pre-computed values, where available */ + switch (hash_bit_len) { /* use pre-computed values, where available */ case 512: memcpy(ctx->X, SKEIN1024_IV_512, sizeof(ctx->X)); break; @@ -506,7 +508,7 @@ int skein_1024_init(struct skein1024_ctx *ctx, size_t hashBitLen) /* set the schema, version */ cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); cfg.w[2] = Skein_Swap64(SKEIN_CFG_TREE_INFO_SEQUENTIAL); /* zero pad config block */ memset(&cfg.w[3], 0, sizeof(cfg) - 3*sizeof(cfg.w[0])); @@ -518,7 +520,7 @@ int skein_1024_init(struct skein1024_ctx *ctx, size_t hashBitLen) break; } - /* The chaining vars ctx->X are now initialized for the hashBitLen. */ + /* The chaining vars ctx->X are now initialized for the hash_bit_len. */ /* Set up to process the data message portion of the hash (default) */ Skein_Start_New_Type(ctx, MSG); /* T0=0, T1= MSG type */ @@ -527,34 +529,34 @@ int skein_1024_init(struct skein1024_ctx *ctx, size_t hashBitLen) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* init the context for a MAC and/or tree hash operation */ -/* [identical to skein_1024_init() when keyBytes == 0 && \ - * treeInfo == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ -int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hashBitLen, - u64 treeInfo, const u8 *key, size_t keyBytes) +/* [identical to skein_1024_init() when key_bytes == 0 && \ + * tree_info == SKEIN_CFG_TREE_INFO_SEQUENTIAL] */ +int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hash_bit_len, + u64 tree_info, const u8 *key, size_t key_bytes) { union { - u8 b[SKEIN1024_STATE_BYTES]; - u64 w[SKEIN1024_STATE_WORDS]; + u8 b[SKEIN1024_STATE_BYTES]; + u64 w[SKEIN1024_STATE_WORDS]; } cfg; /* config block */ - Skein_Assert(hashBitLen > 0, SKEIN_BAD_HASHLEN); - Skein_Assert(keyBytes == 0 || key != NULL, SKEIN_FAIL); + Skein_Assert(hash_bit_len > 0, SKEIN_BAD_HASHLEN); + Skein_Assert(key_bytes == 0 || key != NULL, SKEIN_FAIL); /* compute the initial chaining values ctx->X[], based on key */ - if (keyBytes == 0) { /* is there a key? */ + if (key_bytes == 0) { /* is there a key? */ /* no key: use all zeroes as key for config block */ memset(ctx->X, 0, sizeof(ctx->X)); } else { /* here to pre-process a key */ Skein_assert(sizeof(cfg.b) >= sizeof(ctx->X)); /* do a mini-Init right here */ /* set output hash bit count = state size */ - ctx->h.hashBitLen = 8*sizeof(ctx->X); + ctx->h.hash_bit_len = 8*sizeof(ctx->X); /* set tweaks: T0 = 0; T1 = KEY type */ Skein_Start_New_Type(ctx, KEY); /* zero the initial chaining variables */ memset(ctx->X, 0, sizeof(ctx->X)); /* hash the key */ - skein_1024_update(ctx, key, keyBytes); + skein_1024_update(ctx, key, key_bytes); /* put result into cfg.b[] */ skein_1024_final_pad(ctx, cfg.b); /* copy over into ctx->X[] */ @@ -565,18 +567,18 @@ int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hashBitLen, * precomputed for each key) */ /* output hash bit count */ - ctx->h.hashBitLen = hashBitLen; + ctx->h.hash_bit_len = hash_bit_len; Skein_Start_New_Type(ctx, CFG_FINAL); /* pre-pad cfg.w[] with zeroes */ memset(&cfg.w, 0, sizeof(cfg.w)); cfg.w[0] = Skein_Swap64(SKEIN_SCHEMA_VER); /* hash result length in bits */ - cfg.w[1] = Skein_Swap64(hashBitLen); + cfg.w[1] = Skein_Swap64(hash_bit_len); /* tree hash config info (or SKEIN_CFG_TREE_INFO_SEQUENTIAL) */ - cfg.w[2] = Skein_Swap64(treeInfo); + cfg.w[2] = Skein_Swap64(tree_info); - Skein_Show_Key(1024, &ctx->h, key, keyBytes); + Skein_Show_Key(1024, &ctx->h, key, key_bytes); /* compute the initial chaining values from config block */ skein_1024_process_block(ctx, cfg.b, 1, SKEIN_CFG_STR_LEN); @@ -591,52 +593,53 @@ int skein_1024_init_ext(struct skein1024_ctx *ctx, size_t hashBitLen, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* process the input bytes */ int skein_1024_update(struct skein1024_ctx *ctx, const u8 *msg, - size_t msgByteCnt) + size_t msg_byte_cnt) { size_t n; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); /* process full blocks, if any */ - if (msgByteCnt + ctx->h.bCnt > SKEIN1024_BLOCK_BYTES) { + if (msg_byte_cnt + ctx->h.b_cnt > SKEIN1024_BLOCK_BYTES) { /* finish up any buffered message data */ - if (ctx->h.bCnt) { + if (ctx->h.b_cnt) { /* # bytes free in buffer b[] */ - n = SKEIN1024_BLOCK_BYTES - ctx->h.bCnt; + n = SKEIN1024_BLOCK_BYTES - ctx->h.b_cnt; if (n) { /* check on our logic here */ - Skein_assert(n < msgByteCnt); - memcpy(&ctx->b[ctx->h.bCnt], msg, n); - msgByteCnt -= n; + Skein_assert(n < msg_byte_cnt); + memcpy(&ctx->b[ctx->h.b_cnt], msg, n); + msg_byte_cnt -= n; msg += n; - ctx->h.bCnt += n; + ctx->h.b_cnt += n; } - Skein_assert(ctx->h.bCnt == SKEIN1024_BLOCK_BYTES); + Skein_assert(ctx->h.b_cnt == SKEIN1024_BLOCK_BYTES); skein_1024_process_block(ctx, ctx->b, 1, SKEIN1024_BLOCK_BYTES); - ctx->h.bCnt = 0; + ctx->h.b_cnt = 0; } /* * now process any remaining full blocks, directly from input * message data */ - if (msgByteCnt > SKEIN1024_BLOCK_BYTES) { + if (msg_byte_cnt > SKEIN1024_BLOCK_BYTES) { /* number of full blocks to process */ - n = (msgByteCnt-1) / SKEIN1024_BLOCK_BYTES; + n = (msg_byte_cnt-1) / SKEIN1024_BLOCK_BYTES; skein_1024_process_block(ctx, msg, n, SKEIN1024_BLOCK_BYTES); - msgByteCnt -= n * SKEIN1024_BLOCK_BYTES; + msg_byte_cnt -= n * SKEIN1024_BLOCK_BYTES; msg += n * SKEIN1024_BLOCK_BYTES; } - Skein_assert(ctx->h.bCnt == 0); + Skein_assert(ctx->h.b_cnt == 0); } /* copy any remaining source message data bytes into b[] */ - if (msgByteCnt) { - Skein_assert(msgByteCnt + ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES); - memcpy(&ctx->b[ctx->h.bCnt], msg, msgByteCnt); - ctx->h.bCnt += msgByteCnt; + if (msg_byte_cnt) { + Skein_assert(msg_byte_cnt + ctx->h.b_cnt <= + SKEIN1024_BLOCK_BYTES); + memcpy(&ctx->b[ctx->h.b_cnt], msg, msg_byte_cnt); + ctx->h.b_cnt += msg_byte_cnt; } return SKEIN_SUCCESS; @@ -644,47 +647,47 @@ int skein_1024_update(struct skein1024_ctx *ctx, const u8 *msg, /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the result */ -int skein_1024_final(struct skein1024_ctx *ctx, u8 *hashVal) +int skein_1024_final(struct skein1024_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN1024_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN1024_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN1024_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN1024_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN1024_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_1024_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_1024_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN1024_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN1024_BLOCK_BYTES; + n = byte_cnt - i*SKEIN1024_BLOCK_BYTES; if (n >= SKEIN1024_BLOCK_BYTES) n = SKEIN1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN1024_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN1024_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(1024, &ctx->h, n, - hashVal+i*SKEIN1024_BLOCK_BYTES); + hash_val+i*SKEIN1024_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } @@ -696,66 +699,66 @@ int skein_1024_final(struct skein1024_ctx *ctx, u8 *hashVal) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the block, no OUTPUT stage */ -int skein_256_final_pad(struct skein_256_ctx *ctx, u8 *hashVal) +int skein_256_final_pad(struct skein_256_ctx *ctx, u8 *hash_val) { /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN_256_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN_256_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN_256_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN_256_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_256_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_256_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* "output" the state bytes */ - Skein_Put64_LSB_First(hashVal, ctx->X, SKEIN_256_BLOCK_BYTES); + Skein_Put64_LSB_First(hash_val, ctx->X, SKEIN_256_BLOCK_BYTES); return SKEIN_SUCCESS; } /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the block, no OUTPUT stage */ -int skein_512_final_pad(struct skein_512_ctx *ctx, u8 *hashVal) +int skein_512_final_pad(struct skein_512_ctx *ctx, u8 *hash_val) { /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN_512_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN_512_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN_512_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN_512_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_512_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_512_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* "output" the state bytes */ - Skein_Put64_LSB_First(hashVal, ctx->X, SKEIN_512_BLOCK_BYTES); + Skein_Put64_LSB_First(hash_val, ctx->X, SKEIN_512_BLOCK_BYTES); return SKEIN_SUCCESS; } /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* finalize the hash computation and output the block, no OUTPUT stage */ -int skein_1024_final_pad(struct skein1024_ctx *ctx, u8 *hashVal) +int skein_1024_final_pad(struct skein1024_ctx *ctx, u8 *hash_val) { /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); /* tag as the final block */ ctx->h.T[1] |= SKEIN_T1_FLAG_FINAL; /* zero pad b[] if necessary */ - if (ctx->h.bCnt < SKEIN1024_BLOCK_BYTES) - memset(&ctx->b[ctx->h.bCnt], 0, - SKEIN1024_BLOCK_BYTES - ctx->h.bCnt); + if (ctx->h.b_cnt < SKEIN1024_BLOCK_BYTES) + memset(&ctx->b[ctx->h.b_cnt], 0, + SKEIN1024_BLOCK_BYTES - ctx->h.b_cnt); /* process the final block */ - skein_1024_process_block(ctx, ctx->b, 1, ctx->h.bCnt); + skein_1024_process_block(ctx, ctx->b, 1, ctx->h.b_cnt); /* "output" the state bytes */ - Skein_Put64_LSB_First(hashVal, ctx->X, SKEIN1024_BLOCK_BYTES); + Skein_Put64_LSB_First(hash_val, ctx->X, SKEIN1024_BLOCK_BYTES); return SKEIN_SUCCESS; } @@ -763,37 +766,37 @@ int skein_1024_final_pad(struct skein1024_ctx *ctx, u8 *hashVal) #if SKEIN_TREE_HASH /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* just do the OUTPUT stage */ -int skein_256_output(struct skein_256_ctx *ctx, u8 *hashVal) +int skein_256_output(struct skein_256_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN_256_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_256_BLOCK_BYTES, SKEIN_FAIL); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN_256_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN_256_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_256_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN_256_BLOCK_BYTES; + n = byte_cnt - i*SKEIN_256_BLOCK_BYTES; if (n >= SKEIN_256_BLOCK_BYTES) n = SKEIN_256_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN_256_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN_256_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(256, &ctx->h, n, - hashVal+i*SKEIN_256_BLOCK_BYTES); + hash_val+i*SKEIN_256_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } @@ -802,37 +805,37 @@ int skein_256_output(struct skein_256_ctx *ctx, u8 *hashVal) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* just do the OUTPUT stage */ -int skein_512_output(struct skein_512_ctx *ctx, u8 *hashVal) +int skein_512_output(struct skein_512_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN_512_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN_512_BLOCK_BYTES, SKEIN_FAIL); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN_512_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN_512_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_512_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN_512_BLOCK_BYTES; + n = byte_cnt - i*SKEIN_512_BLOCK_BYTES; if (n >= SKEIN_512_BLOCK_BYTES) n = SKEIN_512_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN_512_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN_512_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(256, &ctx->h, n, - hashVal+i*SKEIN_512_BLOCK_BYTES); + hash_val+i*SKEIN_512_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } @@ -841,37 +844,37 @@ int skein_512_output(struct skein_512_ctx *ctx, u8 *hashVal) /*++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/ /* just do the OUTPUT stage */ -int skein_1024_output(struct skein1024_ctx *ctx, u8 *hashVal) +int skein_1024_output(struct skein1024_ctx *ctx, u8 *hash_val) { - size_t i, n, byteCnt; + size_t i, n, byte_cnt; u64 X[SKEIN1024_STATE_WORDS]; /* catch uninitialized context */ - Skein_Assert(ctx->h.bCnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); + Skein_Assert(ctx->h.b_cnt <= SKEIN1024_BLOCK_BYTES, SKEIN_FAIL); /* now output the result */ /* total number of output bytes */ - byteCnt = (ctx->h.hashBitLen + 7) >> 3; + byte_cnt = (ctx->h.hash_bit_len + 7) >> 3; /* run Threefish in "counter mode" to generate output */ /* zero out b[], so it can hold the counter */ memset(ctx->b, 0, sizeof(ctx->b)); /* keep a local copy of counter mode "key" */ memcpy(X, ctx->X, sizeof(X)); - for (i = 0; i*SKEIN1024_BLOCK_BYTES < byteCnt; i++) { + for (i = 0; i*SKEIN1024_BLOCK_BYTES < byte_cnt; i++) { /* build the counter block */ ((u64 *)ctx->b)[0] = Skein_Swap64((u64) i); Skein_Start_New_Type(ctx, OUT_FINAL); /* run "counter mode" */ skein_1024_process_block(ctx, ctx->b, 1, sizeof(u64)); /* number of output bytes left to go */ - n = byteCnt - i*SKEIN1024_BLOCK_BYTES; + n = byte_cnt - i*SKEIN1024_BLOCK_BYTES; if (n >= SKEIN1024_BLOCK_BYTES) n = SKEIN1024_BLOCK_BYTES; /* "output" the ctr mode bytes */ - Skein_Put64_LSB_First(hashVal+i*SKEIN1024_BLOCK_BYTES, ctx->X, + Skein_Put64_LSB_First(hash_val+i*SKEIN1024_BLOCK_BYTES, ctx->X, n); Skein_Show_Final(256, &ctx->h, n, - hashVal+i*SKEIN1024_BLOCK_BYTES); + hash_val+i*SKEIN1024_BLOCK_BYTES); /* restore the counter mode key for next time */ memcpy(ctx->X, X, sizeof(X)); } diff --git a/drivers/staging/skein/skeinApi.c b/drivers/staging/skein/skeinApi.c index c4f5333e1cce..3426392888e2 100644 --- a/drivers/staging/skein/skeinApi.c +++ b/drivers/staging/skein/skeinApi.c @@ -32,17 +32,17 @@ int skein_ctx_prepare(struct skein_ctx *ctx, enum skein_size size) Skein_Assert(ctx && size, SKEIN_FAIL); memset(ctx , 0, sizeof(struct skein_ctx)); - ctx->skeinSize = size; + ctx->skein_size = size; return SKEIN_SUCCESS; } -int skein_init(struct skein_ctx *ctx, size_t hashBitLen) +int skein_init(struct skein_ctx *ctx, size_t hash_bit_len) { int ret = SKEIN_FAIL; - size_t Xlen = 0; + size_t X_len = 0; u64 *X = NULL; - u64 treeInfo = SKEIN_CFG_TREE_INFO_SEQUENTIAL; + u64 tree_info = SKEIN_CFG_TREE_INFO_SEQUENTIAL; Skein_Assert(ctx, SKEIN_FAIL); /* @@ -51,83 +51,83 @@ int skein_init(struct skein_ctx *ctx, size_t hashBitLen) * memory available. The beauty of C :-) . */ X = ctx->m.s256.X; - Xlen = ctx->skeinSize/8; + X_len = ctx->skein_size/8; /* * If size is the same and hash bit length is zero then reuse * the save chaining variables. */ - switch (ctx->skeinSize) { + switch (ctx->skein_size) { case Skein256: - ret = skein_256_init_ext(&ctx->m.s256, hashBitLen, - treeInfo, NULL, 0); + ret = skein_256_init_ext(&ctx->m.s256, hash_bit_len, + tree_info, NULL, 0); break; case Skein512: - ret = skein_512_init_ext(&ctx->m.s512, hashBitLen, - treeInfo, NULL, 0); + ret = skein_512_init_ext(&ctx->m.s512, hash_bit_len, + tree_info, NULL, 0); break; case Skein1024: - ret = skein_1024_init_ext(&ctx->m.s1024, hashBitLen, - treeInfo, NULL, 0); + ret = skein_1024_init_ext(&ctx->m.s1024, hash_bit_len, + tree_info, NULL, 0); break; } if (ret == SKEIN_SUCCESS) { /* * Save chaining variables for this combination of size and - * hashBitLen + * hash_bit_len */ - memcpy(ctx->XSave, X, Xlen); + memcpy(ctx->X_save, X, X_len); } return ret; } -int skein_mac_init(struct skein_ctx *ctx, const u8 *key, size_t keyLen, - size_t hashBitLen) +int skein_mac_init(struct skein_ctx *ctx, const u8 *key, size_t key_len, + size_t hash_bit_len) { int ret = SKEIN_FAIL; u64 *X = NULL; - size_t Xlen = 0; - u64 treeInfo = SKEIN_CFG_TREE_INFO_SEQUENTIAL; + size_t X_len = 0; + u64 tree_info = SKEIN_CFG_TREE_INFO_SEQUENTIAL; Skein_Assert(ctx, SKEIN_FAIL); X = ctx->m.s256.X; - Xlen = ctx->skeinSize/8; + X_len = ctx->skein_size/8; - Skein_Assert(hashBitLen, SKEIN_BAD_HASHLEN); + Skein_Assert(hash_bit_len, SKEIN_BAD_HASHLEN); - switch (ctx->skeinSize) { + switch (ctx->skein_size) { case Skein256: - ret = skein_256_init_ext(&ctx->m.s256, hashBitLen, - treeInfo, - (const u8 *)key, keyLen); + ret = skein_256_init_ext(&ctx->m.s256, hash_bit_len, + tree_info, + (const u8 *)key, key_len); break; case Skein512: - ret = skein_512_init_ext(&ctx->m.s512, hashBitLen, - treeInfo, - (const u8 *)key, keyLen); + ret = skein_512_init_ext(&ctx->m.s512, hash_bit_len, + tree_info, + (const u8 *)key, key_len); break; case Skein1024: - ret = skein_1024_init_ext(&ctx->m.s1024, hashBitLen, - treeInfo, - (const u8 *)key, keyLen); + ret = skein_1024_init_ext(&ctx->m.s1024, hash_bit_len, + tree_info, + (const u8 *)key, key_len); break; } if (ret == SKEIN_SUCCESS) { /* * Save chaining variables for this combination of key, - * keyLen, hashBitLen + * key_len, hash_bit_len */ - memcpy(ctx->XSave, X, Xlen); + memcpy(ctx->X_save, X, X_len); } return ret; } void skein_reset(struct skein_ctx *ctx) { - size_t Xlen = 0; + size_t X_len = 0; u64 *X = NULL; /* @@ -136,32 +136,33 @@ void skein_reset(struct skein_ctx *ctx) * memory available. The beautiy of C :-) . */ X = ctx->m.s256.X; - Xlen = ctx->skeinSize/8; + X_len = ctx->skein_size/8; /* Restore the chaing variable, reset byte counter */ - memcpy(X, ctx->XSave, Xlen); + memcpy(X, ctx->X_save, X_len); /* Setup context to process the message */ Skein_Start_New_Type(&ctx->m, MSG); } int skein_update(struct skein_ctx *ctx, const u8 *msg, - size_t msgByteCnt) + size_t msg_byte_cnt) { int ret = SKEIN_FAIL; + Skein_Assert(ctx, SKEIN_FAIL); - switch (ctx->skeinSize) { + switch (ctx->skein_size) { case Skein256: ret = skein_256_update(&ctx->m.s256, (const u8 *)msg, - msgByteCnt); + msg_byte_cnt); break; case Skein512: ret = skein_512_update(&ctx->m.s512, (const u8 *)msg, - msgByteCnt); + msg_byte_cnt); break; case Skein1024: ret = skein_1024_update(&ctx->m.s1024, (const u8 *)msg, - msgByteCnt); + msg_byte_cnt); break; } return ret; @@ -169,7 +170,7 @@ int skein_update(struct skein_ctx *ctx, const u8 *msg, } int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, - size_t msgBitCnt) + size_t msg_bit_cnt) { /* * I've used the bit pad implementation from skein_test.c (see NIST CD) @@ -185,13 +186,13 @@ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, * assert an error */ Skein_Assert((ctx->m.h.T[1] & SKEIN_T1_FLAG_BIT_PAD) == 0 || - msgBitCnt == 0, SKEIN_FAIL); + msg_bit_cnt == 0, SKEIN_FAIL); /* if number of bits is a multiple of bytes - that's easy */ - if ((msgBitCnt & 0x7) == 0) - return skein_update(ctx, msg, msgBitCnt >> 3); + if ((msg_bit_cnt & 0x7) == 0) + return skein_update(ctx, msg, msg_bit_cnt >> 3); - skein_update(ctx, msg, (msgBitCnt >> 3) + 1); + skein_update(ctx, msg, (msg_bit_cnt >> 3) + 1); /* * The next line rely on the fact that the real Skein contexts @@ -199,18 +200,18 @@ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, * Skein's real partial block buffer. * If this layout ever changes we have to adapt this as well. */ - up = (u8 *)ctx->m.s256.X + ctx->skeinSize / 8; + up = (u8 *)ctx->m.s256.X + ctx->skein_size / 8; /* set tweak flag for the skein_final call */ Skein_Set_Bit_Pad_Flag(ctx->m.h); /* now "pad" the final partial byte the way NIST likes */ - /* get the bCnt value (same location for all block sizes) */ - length = ctx->m.h.bCnt; + /* get the b_cnt value (same location for all block sizes) */ + length = ctx->m.h.b_cnt; /* internal sanity check: there IS a partial byte in the buffer! */ Skein_assert(length != 0); /* partial byte bit mask */ - mask = (u8) (1u << (7 - (msgBitCnt & 7))); + mask = (u8) (1u << (7 - (msg_bit_cnt & 7))); /* apply bit padding on final byte (in the buffer) */ up[length-1] = (u8)((up[length-1] & (0-mask))|mask); @@ -220,9 +221,10 @@ int skein_update_bits(struct skein_ctx *ctx, const u8 *msg, int skein_final(struct skein_ctx *ctx, u8 *hash) { int ret = SKEIN_FAIL; + Skein_Assert(ctx, SKEIN_FAIL); - switch (ctx->skeinSize) { + switch (ctx->skein_size) { case Skein256: ret = skein_256_final(&ctx->m.s256, (u8 *)hash); break; diff --git a/drivers/staging/skein/skeinBlockNo3F.c b/drivers/staging/skein/skeinBlockNo3F.c index 0acb617d168d..041e5ae20b78 100644 --- a/drivers/staging/skein/skeinBlockNo3F.c +++ b/drivers/staging/skein/skeinBlockNo3F.c @@ -5,8 +5,8 @@ /***************************** Skein_256 ******************************/ -void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { struct threefish_key key; u64 tweak[2]; @@ -14,12 +14,12 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, u64 w[SKEIN_256_STATE_WORDS]; /* local copy of input block */ u64 words[3]; - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ tweak[0] = ctx->h.T[0]; tweak[1] = ctx->h.T[1]; do { - u64 carry = byteCntAdd; + u64 carry = byte_cnt_add; words[0] = tweak[0] & 0xffffffffL; words[1] = ((tweak[0] >> 32) & 0xffffffffL); @@ -37,11 +37,11 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, threefish_set_key(&key, Threefish256, ctx->X, tweak); /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, SKEIN_256_STATE_WORDS); + Skein_Get64_LSB_First(w, blk_ptr, SKEIN_256_STATE_WORDS); threefish_encrypt_block_words(&key, w, ctx->X); - blkPtr += SKEIN_256_BLOCK_BYTES; + blk_ptr += SKEIN_256_BLOCK_BYTES; /* do the final "feedforward" xor, update ctx chaining vars */ ctx->X[0] = ctx->X[0] ^ w[0]; @@ -50,14 +50,14 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, ctx->X[3] = ctx->X[3] ^ w[3]; tweak[1] &= ~SKEIN_T1_FLAG_FIRST; - } while (--blkCnt); + } while (--blk_cnt); ctx->h.T[0] = tweak[0]; ctx->h.T[1] = tweak[1]; } -void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { struct threefish_key key; u64 tweak[2]; @@ -65,12 +65,12 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, u64 words[3]; u64 w[SKEIN_512_STATE_WORDS]; /* local copy of input block */ - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ tweak[0] = ctx->h.T[0]; tweak[1] = ctx->h.T[1]; do { - u64 carry = byteCntAdd; + u64 carry = byte_cnt_add; words[0] = tweak[0] & 0xffffffffL; words[1] = ((tweak[0] >> 32) & 0xffffffffL); @@ -88,11 +88,11 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, threefish_set_key(&key, Threefish512, ctx->X, tweak); /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, SKEIN_512_STATE_WORDS); + Skein_Get64_LSB_First(w, blk_ptr, SKEIN_512_STATE_WORDS); threefish_encrypt_block_words(&key, w, ctx->X); - blkPtr += SKEIN_512_BLOCK_BYTES; + blk_ptr += SKEIN_512_BLOCK_BYTES; /* do the final "feedforward" xor, update ctx chaining vars */ ctx->X[0] = ctx->X[0] ^ w[0]; @@ -105,14 +105,14 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, ctx->X[7] = ctx->X[7] ^ w[7]; tweak[1] &= ~SKEIN_T1_FLAG_FIRST; - } while (--blkCnt); + } while (--blk_cnt); ctx->h.T[0] = tweak[0]; ctx->h.T[1] = tweak[1]; } -void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { struct threefish_key key; u64 tweak[2]; @@ -120,12 +120,12 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, u64 words[3]; u64 w[SKEIN1024_STATE_WORDS]; /* local copy of input block */ - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ tweak[0] = ctx->h.T[0]; tweak[1] = ctx->h.T[1]; do { - u64 carry = byteCntAdd; + u64 carry = byte_cnt_add; words[0] = tweak[0] & 0xffffffffL; words[1] = ((tweak[0] >> 32) & 0xffffffffL); @@ -143,11 +143,11 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, threefish_set_key(&key, Threefish1024, ctx->X, tweak); /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, SKEIN1024_STATE_WORDS); + Skein_Get64_LSB_First(w, blk_ptr, SKEIN1024_STATE_WORDS); threefish_encrypt_block_words(&key, w, ctx->X); - blkPtr += SKEIN1024_BLOCK_BYTES; + blk_ptr += SKEIN1024_BLOCK_BYTES; /* do the final "feedforward" xor, update ctx chaining vars */ ctx->X[0] = ctx->X[0] ^ w[0]; @@ -168,7 +168,7 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, ctx->X[15] = ctx->X[15] ^ w[15]; tweak[1] &= ~SKEIN_T1_FLAG_FIRST; - } while (--blkCnt); + } while (--blk_cnt); ctx->h.T[0] = tweak[0]; ctx->h.T[1] = tweak[1]; diff --git a/drivers/staging/skein/skein_block.c b/drivers/staging/skein/skein_block.c index 1195aec4de89..a51aa57b473d 100644 --- a/drivers/staging/skein/skein_block.c +++ b/drivers/staging/skein/skein_block.c @@ -39,8 +39,8 @@ /***************************** Skein_256 ******************************/ #if !(SKEIN_USE_ASM & 256) -void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { /* do it in C */ enum { WCNT = SKEIN_256_STATE_WORDS @@ -66,10 +66,11 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, u64 X0, X1, X2, X3; /* local copy of context vars, for speed */ u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[4]; /* use for debugging (help cc put Xn in regs) */ - Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; + const u64 *X_ptr[4]; /* use for debugging (help cc put Xn in regs) */ + + X_ptr[0] = &X0; X_ptr[1] = &X1; X_ptr[2] = &X2; X_ptr[3] = &X3; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ ts[0] = ctx->h.T[0]; ts[1] = ctx->h.T[1]; do { @@ -77,7 +78,7 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, * this implementation only supports 2**64 input bytes * (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ + ts[0] += byte_cnt_add; /* update processed length */ /* precompute the key schedule for this block */ ks[0] = ctx->X[0]; @@ -89,9 +90,9 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, ts[2] = ts[0] ^ ts[1]; /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, WCNT); + Skein_Get64_LSB_First(w, blk_ptr, WCNT); DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blk_ptr, w, ks, ts); X0 = w[0] + ks[0]; /* do the first full key injection */ X1 = w[1] + ks[1] + ts[0]; @@ -100,23 +101,23 @@ void skein_256_process_block(struct skein_256_ctx *ctx, const u8 *blkPtr, /* show starting state values */ Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, - Xptr); + X_ptr); - blkPtr += SKEIN_256_BLOCK_BYTES; + blk_ptr += SKEIN_256_BLOCK_BYTES; /* run the rounds */ -#define Round256(p0, p1, p2, p3, ROT, rNum) \ +#define Round256(p0, p1, p2, p3, ROT, r_num) \ do { \ X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ } while (0) #if SKEIN_UNROLL_256 == 0 -#define R256(p0, p1, p2, p3, ROT, rNum) /* fully unrolled */ \ +#define R256(p0, p1, p2, p3, ROT, r_num) /* fully unrolled */ \ do { \ - Round256(p0, p1, p2, p3, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); \ + Round256(p0, p1, p2, p3, ROT, r_num); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, r_num, X_ptr); \ } while (0) #define I256(R) \ @@ -126,13 +127,13 @@ do { \ X1 += ks[((R)+2) % 5] + ts[((R)+1) % 3]; \ X2 += ks[((R)+3) % 5] + ts[((R)+2) % 3]; \ X3 += ks[((R)+4) % 5] + (R)+1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) #else /* looping version */ -#define R256(p0, p1, p2, p3, ROT, rNum) \ +#define R256(p0, p1, p2, p3, ROT, r_num) \ do { \ - Round256(p0, p1, p2, p3, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); \ + Round256(p0, p1, p2, p3, ROT, r_num); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + r_num, X_ptr); \ } while (0) #define I256(R) \ @@ -145,7 +146,7 @@ do { \ /* rotate key schedule */ \ ks[r + (R) + 4] = ks[r + (R) - 1]; \ ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_256) @@ -227,7 +228,7 @@ do { \ Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); ts[1] &= ~SKEIN_T1_FLAG_FIRST; - } while (--blkCnt); + } while (--blk_cnt); ctx->h.T[0] = ts[0]; ctx->h.T[1] = ts[1]; } @@ -247,8 +248,8 @@ unsigned int skein_256_unroll_cnt(void) /***************************** Skein_512 ******************************/ #if !(SKEIN_USE_ASM & 512) -void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { /* do it in C */ enum { WCNT = SKEIN_512_STATE_WORDS @@ -274,12 +275,13 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, u64 X0, X1, X2, X3, X4, X5, X6, X7; /* local copies, for speed */ u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[8]; /* use for debugging (help cc put Xn in regs) */ - Xptr[0] = &X0; Xptr[1] = &X1; Xptr[2] = &X2; Xptr[3] = &X3; - Xptr[4] = &X4; Xptr[5] = &X5; Xptr[6] = &X6; Xptr[7] = &X7; + const u64 *X_ptr[8]; /* use for debugging (help cc put Xn in regs) */ + + X_ptr[0] = &X0; X_ptr[1] = &X1; X_ptr[2] = &X2; X_ptr[3] = &X3; + X_ptr[4] = &X4; X_ptr[5] = &X5; X_ptr[6] = &X6; X_ptr[7] = &X7; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ ts[0] = ctx->h.T[0]; ts[1] = ctx->h.T[1]; do { @@ -287,7 +289,7 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, * this implementation only supports 2**64 input bytes * (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ + ts[0] += byte_cnt_add; /* update processed length */ /* precompute the key schedule for this block */ ks[0] = ctx->X[0]; @@ -304,9 +306,9 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, ts[2] = ts[0] ^ ts[1]; /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, WCNT); + Skein_Get64_LSB_First(w, blk_ptr, WCNT); DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blk_ptr, w, ks, ts); X0 = w[0] + ks[0]; /* do the first full key injection */ X1 = w[1] + ks[1]; @@ -317,12 +319,12 @@ void skein_512_process_block(struct skein_512_ctx *ctx, const u8 *blkPtr, X6 = w[6] + ks[6] + ts[1]; X7 = w[7] + ks[7]; - blkPtr += SKEIN_512_BLOCK_BYTES; + blk_ptr += SKEIN_512_BLOCK_BYTES; Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, - Xptr); + X_ptr); /* run the rounds */ -#define Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ +#define Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ do { \ X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ @@ -331,10 +333,10 @@ do { \ } while (0) #if SKEIN_UNROLL_512 == 0 -#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) /* unrolled */ \ +#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) /* unrolled */ \ do { \ - Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rNum, Xptr); \ + Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, r_num, X_ptr); \ } while (0) #define I512(R) \ @@ -348,13 +350,13 @@ do { \ X5 += ks[((R) + 6) % 9] + ts[((R) + 1) % 3]; \ X6 += ks[((R) + 7) % 9] + ts[((R) + 2) % 3]; \ X7 += ks[((R) + 8) % 9] + (R) + 1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) #else /* looping version */ -#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ +#define R512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num) \ do { \ - Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, rNum) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rNum, Xptr); \ + Round512(p0, p1, p2, p3, p4, p5, p6, p7, ROT, r_num); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + r_num, X_ptr); \ } while (0) #define I512(R) \ @@ -371,7 +373,7 @@ do { \ /* rotate key schedule */ \ ks[r + (R) + 8] = ks[r + (R) - 1]; \ ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) for (r = 1; r < 2 * RCNT; r += 2 * SKEIN_UNROLL_512) @@ -457,7 +459,7 @@ do { \ Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); ts[1] &= ~SKEIN_T1_FLAG_FIRST; - } while (--blkCnt); + } while (--blk_cnt); ctx->h.T[0] = ts[0]; ctx->h.T[1] = ts[1]; } @@ -477,8 +479,8 @@ unsigned int skein_512_unroll_cnt(void) /***************************** Skein1024 ******************************/ #if !(SKEIN_USE_ASM & 1024) -void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, - size_t blkCnt, size_t byteCntAdd) +void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blk_ptr, + size_t blk_cnt, size_t byte_cnt_add) { /* do it in C, always looping (unrolled is bigger AND slower!) */ enum { WCNT = SKEIN1024_STATE_WORDS @@ -507,14 +509,17 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, X08, X09, X10, X11, X12, X13, X14, X15; u64 w[WCNT]; /* local copy of input block */ #ifdef SKEIN_DEBUG - const u64 *Xptr[16]; /* use for debugging (help cc put Xn in regs) */ - Xptr[0] = &X00; Xptr[1] = &X01; Xptr[2] = &X02; Xptr[3] = &X03; - Xptr[4] = &X04; Xptr[5] = &X05; Xptr[6] = &X06; Xptr[7] = &X07; - Xptr[8] = &X08; Xptr[9] = &X09; Xptr[10] = &X10; Xptr[11] = &X11; - Xptr[12] = &X12; Xptr[13] = &X13; Xptr[14] = &X14; Xptr[15] = &X15; + const u64 *X_ptr[16]; /* use for debugging (help cc put Xn in regs) */ + + X_ptr[0] = &X00; X_ptr[1] = &X01; X_ptr[2] = &X02; + X_ptr[3] = &X03; X_ptr[4] = &X04; X_ptr[5] = &X05; + X_ptr[6] = &X06; X_ptr[7] = &X07; X_ptr[8] = &X08; + X_ptr[9] = &X09; X_ptr[10] = &X10; X_ptr[11] = &X11; + X_ptr[12] = &X12; X_ptr[13] = &X13; X_ptr[14] = &X14; + X_ptr[15] = &X15; #endif - Skein_assert(blkCnt != 0); /* never call with blkCnt == 0! */ + Skein_assert(blk_cnt != 0); /* never call with blk_cnt == 0! */ ts[0] = ctx->h.T[0]; ts[1] = ctx->h.T[1]; do { @@ -522,7 +527,7 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, * this implementation only supports 2**64 input bytes * (no carry out here) */ - ts[0] += byteCntAdd; /* update processed length */ + ts[0] += byte_cnt_add; /* update processed length */ /* precompute the key schedule for this block */ ks[0] = ctx->X[0]; @@ -549,9 +554,9 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, ts[2] = ts[0] ^ ts[1]; /* get input block in little-endian format */ - Skein_Get64_LSB_First(w, blkPtr, WCNT); + Skein_Get64_LSB_First(w, blk_ptr, WCNT); DebugSaveTweak(ctx); - Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blkPtr, w, ks, ts); + Skein_Show_Block(BLK_BITS, &ctx->h, ctx->X, blk_ptr, w, ks, ts); X00 = w[0] + ks[0]; /* do the first full key injection */ X01 = w[1] + ks[1]; @@ -571,10 +576,10 @@ void skein_1024_process_block(struct skein1024_ctx *ctx, const u8 *blkPtr, X15 = w[15] + ks[15]; Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INITIAL, - Xptr); + X_ptr); #define Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ - pF, ROT, rNum) \ + pF, ROT, r_num) \ do { \ X##p0 += X##p1; X##p1 = RotL_64(X##p1, ROT##_0); X##p1 ^= X##p0; \ X##p2 += X##p3; X##p3 = RotL_64(X##p3, ROT##_1); X##p3 ^= X##p2; \ @@ -592,7 +597,7 @@ do { \ do { \ Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ pF, ROT, rn) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rn, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, rn, X_ptr); \ } while (0) #define I1024(R) \ @@ -614,7 +619,7 @@ do { \ X13 += ks[((R) + 14) % 17] + ts[((R) + 1) % 3]; \ X14 += ks[((R) + 15) % 17] + ts[((R) + 2) % 3]; \ X15 += ks[((R) + 16) % 17] + (R) + 1; \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) #else /* looping version */ #define R1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, pF, \ @@ -622,7 +627,7 @@ do { \ do { \ Round1024(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, pA, pB, pC, pD, pE, \ pF, ROT, rn) \ - Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rn, Xptr); \ + Skein_Show_R_Ptr(BLK_BITS, &ctx->h, 4 * (r - 1) + rn, X_ptr); \ } while (0) #define I1024(R) \ @@ -647,7 +652,7 @@ do { \ /* rotate key schedule */ \ ks[r + (R) + 16] = ks[r + (R) - 1]; \ ts[r + (R) + 2] = ts[r + (R) - 1]; \ - Skein_Show_R_Ptr(BLK_BITSi, &ctx->h, SKEIN_RND_KEY_INJECT, Xptr); \ + Skein_Show_R_Ptr(BLK_BITSi, &ctx->h, SKEIN_RND_KEY_INJECT, X_ptr); \ } while (0) for (r = 1; r <= 2 * RCNT; r += 2 * SKEIN_UNROLL_1024) @@ -750,8 +755,8 @@ do { \ Skein_Show_Round(BLK_BITS, &ctx->h, SKEIN_RND_FEED_FWD, ctx->X); ts[1] &= ~SKEIN_T1_FLAG_FIRST; - blkPtr += SKEIN1024_BLOCK_BYTES; - } while (--blkCnt); + blk_ptr += SKEIN1024_BLOCK_BYTES; + } while (--blk_cnt); ctx->h.T[0] = ts[0]; ctx->h.T[1] = ts[1]; } diff --git a/drivers/staging/skein/threefish1024Block.c b/drivers/staging/skein/threefish1024Block.c index 113019f4c619..827ce1a7b33a 100644 --- a/drivers/staging/skein/threefish1024Block.c +++ b/drivers/staging/skein/threefish1024Block.c @@ -2,28 +2,28 @@ #include <threefishApi.h> -void threefish_encrypt_1024(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_1024(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3], - b4 = input[4], b5 = input[5], - b6 = input[6], b7 = input[7], - b8 = input[8], b9 = input[9], - b10 = input[10], b11 = input[11], - b12 = input[12], b13 = input[13], - b14 = input[14], b15 = input[15]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4], k5 = keyCtx->key[5], - k6 = keyCtx->key[6], k7 = keyCtx->key[7], - k8 = keyCtx->key[8], k9 = keyCtx->key[9], - k10 = keyCtx->key[10], k11 = keyCtx->key[11], - k12 = keyCtx->key[12], k13 = keyCtx->key[13], - k14 = keyCtx->key[14], k15 = keyCtx->key[15], - k16 = keyCtx->key[16]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3], + b4 = input[4], b5 = input[5], + b6 = input[6], b7 = input[7], + b8 = input[8], b9 = input[9], + b10 = input[10], b11 = input[11], + b12 = input[12], b13 = input[13], + b14 = input[14], b15 = input[15]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4], k5 = key_ctx->key[5], + k6 = key_ctx->key[6], k7 = key_ctx->key[7], + k8 = key_ctx->key[8], k9 = key_ctx->key[9], + k10 = key_ctx->key[10], k11 = key_ctx->key[11], + k12 = key_ctx->key[12], k13 = key_ctx->key[13], + k14 = key_ctx->key[14], k15 = key_ctx->key[15], + k16 = key_ctx->key[16]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; b1 += k1; b0 += b1 + k0; @@ -2123,28 +2123,28 @@ void threefish_encrypt_1024(struct threefish_key *keyCtx, u64 *input, output[15] = b15 + k1 + 20; } -void threefish_decrypt_1024(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_1024(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3], - b4 = input[4], b5 = input[5], - b6 = input[6], b7 = input[7], - b8 = input[8], b9 = input[9], - b10 = input[10], b11 = input[11], - b12 = input[12], b13 = input[13], - b14 = input[14], b15 = input[15]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4], k5 = keyCtx->key[5], - k6 = keyCtx->key[6], k7 = keyCtx->key[7], - k8 = keyCtx->key[8], k9 = keyCtx->key[9], - k10 = keyCtx->key[10], k11 = keyCtx->key[11], - k12 = keyCtx->key[12], k13 = keyCtx->key[13], - k14 = keyCtx->key[14], k15 = keyCtx->key[15], - k16 = keyCtx->key[16]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3], + b4 = input[4], b5 = input[5], + b6 = input[6], b7 = input[7], + b8 = input[8], b9 = input[9], + b10 = input[10], b11 = input[11], + b12 = input[12], b13 = input[13], + b14 = input[14], b15 = input[15]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4], k5 = key_ctx->key[5], + k6 = key_ctx->key[6], k7 = key_ctx->key[7], + k8 = key_ctx->key[8], k9 = key_ctx->key[9], + k10 = key_ctx->key[10], k11 = key_ctx->key[11], + k12 = key_ctx->key[12], k13 = key_ctx->key[13], + k14 = key_ctx->key[14], k15 = key_ctx->key[15], + k16 = key_ctx->key[16]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; u64 tmp; b0 -= k3; diff --git a/drivers/staging/skein/threefish256Block.c b/drivers/staging/skein/threefish256Block.c index ee21aef24573..1329c71697ed 100644 --- a/drivers/staging/skein/threefish256Block.c +++ b/drivers/staging/skein/threefish256Block.c @@ -2,16 +2,16 @@ #include <threefishApi.h> -void threefish_encrypt_256(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_256(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; b1 += k1 + t0; b0 += b1 + k0; @@ -495,16 +495,16 @@ void threefish_encrypt_256(struct threefish_key *keyCtx, u64 *input, output[3] = b3 + k1 + 18; } -void threefish_decrypt_256(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_256(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; u64 tmp; diff --git a/drivers/staging/skein/threefish512Block.c b/drivers/staging/skein/threefish512Block.c index c4ad1b458a36..db50d83933dc 100644 --- a/drivers/staging/skein/threefish512Block.c +++ b/drivers/staging/skein/threefish512Block.c @@ -2,20 +2,20 @@ #include <threefishApi.h> -void threefish_encrypt_512(struct threefish_key *keyCtx, u64 *input, +void threefish_encrypt_512(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3], - b4 = input[4], b5 = input[5], - b6 = input[6], b7 = input[7]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4], k5 = keyCtx->key[5], - k6 = keyCtx->key[6], k7 = keyCtx->key[7], - k8 = keyCtx->key[8]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3], + b4 = input[4], b5 = input[5], + b6 = input[6], b7 = input[7]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4], k5 = key_ctx->key[5], + k6 = key_ctx->key[6], k7 = key_ctx->key[7], + k8 = key_ctx->key[8]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; b1 += k1; b0 += b1 + k0; @@ -963,20 +963,20 @@ void threefish_encrypt_512(struct threefish_key *keyCtx, u64 *input, output[7] = b7 + k7 + 18; } -void threefish_decrypt_512(struct threefish_key *keyCtx, u64 *input, +void threefish_decrypt_512(struct threefish_key *key_ctx, u64 *input, u64 *output) { u64 b0 = input[0], b1 = input[1], - b2 = input[2], b3 = input[3], - b4 = input[4], b5 = input[5], - b6 = input[6], b7 = input[7]; - u64 k0 = keyCtx->key[0], k1 = keyCtx->key[1], - k2 = keyCtx->key[2], k3 = keyCtx->key[3], - k4 = keyCtx->key[4], k5 = keyCtx->key[5], - k6 = keyCtx->key[6], k7 = keyCtx->key[7], - k8 = keyCtx->key[8]; - u64 t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1], - t2 = keyCtx->tweak[2]; + b2 = input[2], b3 = input[3], + b4 = input[4], b5 = input[5], + b6 = input[6], b7 = input[7]; + u64 k0 = key_ctx->key[0], k1 = key_ctx->key[1], + k2 = key_ctx->key[2], k3 = key_ctx->key[3], + k4 = key_ctx->key[4], k5 = key_ctx->key[5], + k6 = key_ctx->key[6], k7 = key_ctx->key[7], + k8 = key_ctx->key[8]; + u64 t0 = key_ctx->tweak[0], t1 = key_ctx->tweak[1], + t2 = key_ctx->tweak[2]; u64 tmp; diff --git a/drivers/staging/skein/threefishApi.c b/drivers/staging/skein/threefishApi.c index fce613b5404c..67ba9a6e4b12 100644 --- a/drivers/staging/skein/threefishApi.c +++ b/drivers/staging/skein/threefishApi.c @@ -3,76 +3,76 @@ #include <linux/string.h> #include <threefishApi.h> -void threefish_set_key(struct threefish_key *keyCtx, - enum threefish_size stateSize, - u64 *keyData, u64 *tweak) +void threefish_set_key(struct threefish_key *key_ctx, + enum threefish_size state_size, + u64 *key_data, u64 *tweak) { - int keyWords = stateSize / 64; + int key_words = state_size / 64; int i; u64 parity = KeyScheduleConst; - keyCtx->tweak[0] = tweak[0]; - keyCtx->tweak[1] = tweak[1]; - keyCtx->tweak[2] = tweak[0] ^ tweak[1]; + key_ctx->tweak[0] = tweak[0]; + key_ctx->tweak[1] = tweak[1]; + key_ctx->tweak[2] = tweak[0] ^ tweak[1]; - for (i = 0; i < keyWords; i++) { - keyCtx->key[i] = keyData[i]; - parity ^= keyData[i]; + for (i = 0; i < key_words; i++) { + key_ctx->key[i] = key_data[i]; + parity ^= key_data[i]; } - keyCtx->key[i] = parity; - keyCtx->stateSize = stateSize; + key_ctx->key[i] = parity; + key_ctx->state_size = state_size; } -void threefish_encrypt_block_bytes(struct threefish_key *keyCtx, u8 *in, +void threefish_encrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, u8 *out) { u64 plain[SKEIN_MAX_STATE_WORDS]; /* max number of words*/ u64 cipher[SKEIN_MAX_STATE_WORDS]; - Skein_Get64_LSB_First(plain, in, keyCtx->stateSize / 64); - threefish_encrypt_block_words(keyCtx, plain, cipher); - Skein_Put64_LSB_First(out, cipher, keyCtx->stateSize / 8); + Skein_Get64_LSB_First(plain, in, key_ctx->state_size / 64); + threefish_encrypt_block_words(key_ctx, plain, cipher); + Skein_Put64_LSB_First(out, cipher, key_ctx->state_size / 8); } -void threefish_encrypt_block_words(struct threefish_key *keyCtx, u64 *in, +void threefish_encrypt_block_words(struct threefish_key *key_ctx, u64 *in, u64 *out) { - switch (keyCtx->stateSize) { + switch (key_ctx->state_size) { case Threefish256: - threefish_encrypt_256(keyCtx, in, out); + threefish_encrypt_256(key_ctx, in, out); break; case Threefish512: - threefish_encrypt_512(keyCtx, in, out); + threefish_encrypt_512(key_ctx, in, out); break; case Threefish1024: - threefish_encrypt_1024(keyCtx, in, out); + threefish_encrypt_1024(key_ctx, in, out); break; } } -void threefish_decrypt_block_bytes(struct threefish_key *keyCtx, u8 *in, +void threefish_decrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, u8 *out) { u64 plain[SKEIN_MAX_STATE_WORDS]; /* max number of words*/ u64 cipher[SKEIN_MAX_STATE_WORDS]; - Skein_Get64_LSB_First(cipher, in, keyCtx->stateSize / 64); - threefish_decrypt_block_words(keyCtx, cipher, plain); - Skein_Put64_LSB_First(out, plain, keyCtx->stateSize / 8); + Skein_Get64_LSB_First(cipher, in, key_ctx->state_size / 64); + threefish_decrypt_block_words(key_ctx, cipher, plain); + Skein_Put64_LSB_First(out, plain, key_ctx->state_size / 8); } -void threefish_decrypt_block_words(struct threefish_key *keyCtx, u64 *in, +void threefish_decrypt_block_words(struct threefish_key *key_ctx, u64 *in, u64 *out) { - switch (keyCtx->stateSize) { + switch (key_ctx->state_size) { case Threefish256: - threefish_decrypt_256(keyCtx, in, out); + threefish_decrypt_256(key_ctx, in, out); break; case Threefish512: - threefish_decrypt_512(keyCtx, in, out); + threefish_decrypt_512(key_ctx, in, out); break; case Threefish1024: - threefish_decrypt_1024(keyCtx, in, out); + threefish_decrypt_1024(key_ctx, in, out); break; } } |