diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 2 | ||||
| -rw-r--r-- | crypto/md4.c | 52 |
2 files changed, 30 insertions, 24 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 5386beb503e3..96f8154147a2 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -276,7 +276,7 @@ config CRYPTO_CRC32C_INTEL config CRYPTO_MD4 tristate "MD4 digest algorithm" - select CRYPTO_ALGAPI + select CRYPTO_HASH help MD4 message digest algorithm (RFC1320). diff --git a/crypto/md4.c b/crypto/md4.c index a143c4aaa398..7fca1f59a4f5 100644 --- a/crypto/md4.c +++ b/crypto/md4.c @@ -20,8 +20,8 @@ * (at your option) any later version. * */ +#include <crypto/internal/hash.h> #include <linux/init.h> -#include <linux/crypto.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/types.h> @@ -58,7 +58,7 @@ static inline u32 H(u32 x, u32 y, u32 z) { return x ^ y ^ z; } - + #define ROUND1(a,b,c,d,k,s) (a = lshift(a + F(b,c,d) + k, s)) #define ROUND2(a,b,c,d,k,s) (a = lshift(a + G(b,c,d) + k + (u32)0x5A827999,s)) #define ROUND3(a,b,c,d,k,s) (a = lshift(a + H(b,c,d) + k + (u32)0x6ED9EBA1,s)) @@ -152,20 +152,22 @@ static inline void md4_transform_helper(struct md4_ctx *ctx) md4_transform(ctx->hash, ctx->block); } -static void md4_init(struct crypto_tfm *tfm) +static int md4_init(struct shash_desc *desc) { - struct md4_ctx *mctx = crypto_tfm_ctx(tfm); + struct md4_ctx *mctx = shash_desc_ctx(desc); mctx->hash[0] = 0x67452301; mctx->hash[1] = 0xefcdab89; mctx->hash[2] = 0x98badcfe; mctx->hash[3] = 0x10325476; mctx->byte_count = 0; + + return 0; } -static void md4_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) +static int md4_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - struct md4_ctx *mctx = crypto_tfm_ctx(tfm); + struct md4_ctx *mctx = shash_desc_ctx(desc); const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f); mctx->byte_count += len; @@ -173,7 +175,7 @@ static void md4_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) if (avail > len) { memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), data, len); - return; + return 0; } memcpy((char *)mctx->block + (sizeof(mctx->block) - avail), @@ -191,11 +193,13 @@ static void md4_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) } memcpy(mctx->block, data, len); + + return 0; } -static void md4_final(struct crypto_tfm *tfm, u8 *out) +static int md4_final(struct shash_desc *desc, u8 *out) { - struct md4_ctx *mctx = crypto_tfm_ctx(tfm); + struct md4_ctx *mctx = shash_desc_ctx(desc); const unsigned int offset = mctx->byte_count & 0x3f; char *p = (char *)mctx->block + offset; int padding = 56 - (offset + 1); @@ -217,30 +221,32 @@ static void md4_final(struct crypto_tfm *tfm, u8 *out) cpu_to_le32_array(mctx->hash, ARRAY_SIZE(mctx->hash)); memcpy(out, mctx->hash, sizeof(mctx->hash)); memset(mctx, 0, sizeof(*mctx)); + + return 0; } -static struct crypto_alg alg = { - .cra_name = "md4", - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, - .cra_blocksize = MD4_HMAC_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct md4_ctx), - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(alg.cra_list), - .cra_u = { .digest = { - .dia_digestsize = MD4_DIGEST_SIZE, - .dia_init = md4_init, - .dia_update = md4_update, - .dia_final = md4_final } } +static struct shash_alg alg = { + .digestsize = MD4_DIGEST_SIZE, + .init = md4_init, + .update = md4_update, + .final = md4_final, + .descsize = sizeof(struct md4_ctx), + .base = { + .cra_name = "md4", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = MD4_HMAC_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } }; static int __init md4_mod_init(void) { - return crypto_register_alg(&alg); + return crypto_register_shash(&alg); } static void __exit md4_mod_fini(void) { - crypto_unregister_alg(&alg); + crypto_unregister_shash(&alg); } module_init(md4_mod_init); |