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authorJohannes Goetzfried <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>2012-07-11 21:37:04 +0400
committerHerbert Xu <herbert@gondor.apana.org.au>2012-08-01 13:47:29 +0400
commit270b0c6b406a0ae7673ee880d1d7cc6bd6c904de (patch)
treef73fc16f158c1cc3ff13ef6cd1019805ec79b53e /include/crypto
parent37743cc0d34c4c5cb8520bc27eb2a45141e938fe (diff)
downloadlinux-270b0c6b406a0ae7673ee880d1d7cc6bd6c904de.tar.xz
crypto: cast5 - prepare generic module for optimized implementations
Rename cast5 module to cast5_generic to allow autoloading of optimized implementations. Generic functions and s-boxes are exported to be able to use them within optimized implementations. Signed-off-by: Johannes Goetzfried <Johannes.Goetzfried@informatik.stud.uni-erlangen.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/crypto')
-rw-r--r--include/crypto/cast5.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/crypto/cast5.h b/include/crypto/cast5.h
new file mode 100644
index 000000000000..dcb90c13dd39
--- /dev/null
+++ b/include/crypto/cast5.h
@@ -0,0 +1,22 @@
+#ifndef _CRYPTO_CAST5_H
+#define _CRYPTO_CAST5_H
+
+#include <linux/types.h>
+#include <linux/crypto.h>
+
+#define CAST5_BLOCK_SIZE 8
+#define CAST5_MIN_KEY_SIZE 5
+#define CAST5_MAX_KEY_SIZE 16
+
+struct cast5_ctx {
+ u32 Km[16];
+ u8 Kr[16];
+ int rr; /* rr ? rounds = 12 : rounds = 16; (rfc 2144) */
+};
+
+int cast5_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen);
+
+void __cast5_encrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
+void __cast5_decrypt(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
+
+#endif