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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2019-08-15 12:00:45 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-22 07:39:37 +0300
commit8f467cf29f192f9ebd89dcc4a18901e62c17e37a (patch)
tree9feda5aa979613a2b6a2b94cfbd65f91f1a617cc /arch/sparc
parent4e2c820897d93a4dbe76865d860087f809963308 (diff)
downloadlinux-8f467cf29f192f9ebd89dcc4a18901e62c17e37a.tar.xz
crypto: sparc/des - switch to new verification routines
Switch to the refactored DES key verification routines. While at it, rename the DES encrypt/decrypt routines so they will not conflict with the DES library later on. Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/crypto/des_glue.c37
1 files changed, 16 insertions, 21 deletions
diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c
index 281448f72c90..db6010b4e52e 100644
--- a/arch/sparc/crypto/des_glue.c
+++ b/arch/sparc/crypto/des_glue.c
@@ -12,7 +12,7 @@
#include <linux/mm.h>
#include <linux/types.h>
#include <crypto/algapi.h>
-#include <crypto/des.h>
+#include <crypto/internal/des.h>
#include <asm/fpumacro.h>
#include <asm/pstate.h>
@@ -45,19 +45,15 @@ static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
- u32 tmp[DES_EXPKEY_WORDS];
- int ret;
+ int err;
/* Even though we have special instructions for key expansion,
- * we call des_ekey() so that we don't have to write our own
+ * we call des_verify_key() so that we don't have to write our own
* weak key detection code.
*/
- ret = des_ekey(tmp, key);
- if (unlikely(ret == 0) && (*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
- *flags |= CRYPTO_TFM_RES_WEAK_KEY;
- return -EINVAL;
- }
+ err = crypto_des_verify_key(tfm, key);
+ if (err)
+ return err;
des_sparc64_key_expand((const u32 *) key, &dctx->encrypt_expkey[0]);
encrypt_to_decrypt(&dctx->decrypt_expkey[0], &dctx->encrypt_expkey[0]);
@@ -68,7 +64,7 @@ static int des_set_key(struct crypto_tfm *tfm, const u8 *key,
extern void des_sparc64_crypt(const u64 *key, const u64 *input,
u64 *output);
-static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void sparc_des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->encrypt_expkey;
@@ -76,7 +72,7 @@ static void des_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
des_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
}
-static void des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void sparc_des_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->decrypt_expkey;
@@ -202,14 +198,13 @@ static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
unsigned int keylen)
{
struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm);
- u32 *flags = &tfm->crt_flags;
u64 k1[DES_EXPKEY_WORDS / 2];
u64 k2[DES_EXPKEY_WORDS / 2];
u64 k3[DES_EXPKEY_WORDS / 2];
int err;
- err = __des3_verify_key(flags, key);
- if (unlikely(err))
+ err = crypto_des3_ede_verify_key(tfm, key);
+ if (err)
return err;
des_sparc64_key_expand((const u32 *)key, k1);
@@ -235,7 +230,7 @@ static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key,
extern void des3_ede_sparc64_crypt(const u64 *key, const u64 *input,
u64 *output);
-static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void sparc_des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->encrypt_expkey;
@@ -243,7 +238,7 @@ static void des3_ede_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
des3_ede_sparc64_crypt(K, (const u64 *) src, (u64 *) dst);
}
-static void des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void sparc_des3_ede_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct des3_ede_sparc64_ctx *ctx = crypto_tfm_ctx(tfm);
const u64 *K = ctx->decrypt_expkey;
@@ -390,8 +385,8 @@ static struct crypto_alg algs[] = { {
.cia_min_keysize = DES_KEY_SIZE,
.cia_max_keysize = DES_KEY_SIZE,
.cia_setkey = des_set_key,
- .cia_encrypt = des_encrypt,
- .cia_decrypt = des_decrypt
+ .cia_encrypt = sparc_des_encrypt,
+ .cia_decrypt = sparc_des_decrypt
}
}
}, {
@@ -447,8 +442,8 @@ static struct crypto_alg algs[] = { {
.cia_min_keysize = DES3_EDE_KEY_SIZE,
.cia_max_keysize = DES3_EDE_KEY_SIZE,
.cia_setkey = des3_ede_set_key,
- .cia_encrypt = des3_ede_encrypt,
- .cia_decrypt = des3_ede_decrypt
+ .cia_encrypt = sparc_des3_ede_encrypt,
+ .cia_decrypt = sparc_des3_ede_decrypt
}
}
}, {