diff options
| -rw-r--r-- | crypto/Kconfig | 2 | ||||
| -rw-r--r-- | crypto/sha512_generic.c | 112 |
2 files changed, 60 insertions, 54 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index 3f88a52..8dde4fc 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -369,7 +369,7 @@ config CRYPTO_SHA256 config CRYPTO_SHA512 tristate "SHA384 and SHA512 digest algorithms" - select CRYPTO_ALGAPI + select CRYPTO_HASH help SHA512 secure hash standard (DFIPS 180-2). diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c index cb85516..3bea38d 100644 --- a/crypto/sha512_generic.c +++ b/crypto/sha512_generic.c @@ -10,7 +10,7 @@ * later version. * */ - +#include <crypto/internal/hash.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mm.h> @@ -138,10 +138,10 @@ sha512_transform(u64 *state, const u8 *input) put_cpu_var(msg_schedule); } -static void -sha512_init(struct crypto_tfm *tfm) +static int +sha512_init(struct shash_desc *desc) { - struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); + struct sha512_ctx *sctx = shash_desc_ctx(desc); sctx->state[0] = SHA512_H0; sctx->state[1] = SHA512_H1; sctx->state[2] = SHA512_H2; @@ -151,12 +151,14 @@ sha512_init(struct crypto_tfm *tfm) sctx->state[6] = SHA512_H6; sctx->state[7] = SHA512_H7; sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0; + + return 0; } -static void -sha384_init(struct crypto_tfm *tfm) +static int +sha384_init(struct shash_desc *desc) { - struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); + struct sha512_ctx *sctx = shash_desc_ctx(desc); sctx->state[0] = SHA384_H0; sctx->state[1] = SHA384_H1; sctx->state[2] = SHA384_H2; @@ -166,12 +168,14 @@ sha384_init(struct crypto_tfm *tfm) sctx->state[6] = SHA384_H6; sctx->state[7] = SHA384_H7; sctx->count[0] = sctx->count[1] = sctx->count[2] = sctx->count[3] = 0; + + return 0; } -static void -sha512_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) +static int +sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len) { - struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); + struct sha512_ctx *sctx = shash_desc_ctx(desc); unsigned int i, index, part_len; @@ -203,12 +207,14 @@ sha512_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len) /* Buffer remaining input */ memcpy(&sctx->buf[index], &data[i], len - i); + + return 0; } -static void -sha512_final(struct crypto_tfm *tfm, u8 *hash) +static int +sha512_final(struct shash_desc *desc, u8 *hash) { - struct sha512_ctx *sctx = crypto_tfm_ctx(tfm); + struct sha512_ctx *sctx = shash_desc_ctx(desc); static u8 padding[128] = { 0x80, }; __be64 *dst = (__be64 *)hash; __be32 bits[4]; @@ -224,10 +230,10 @@ sha512_final(struct crypto_tfm *tfm, u8 *hash) /* Pad out to 112 mod 128. */ index = (sctx->count[0] >> 3) & 0x7f; pad_len = (index < 112) ? (112 - index) : ((128+112) - index); - sha512_update(tfm, padding, pad_len); + sha512_update(desc, padding, pad_len); /* Append length (before padding) */ - sha512_update(tfm, (const u8 *)bits, sizeof(bits)); + sha512_update(desc, (const u8 *)bits, sizeof(bits)); /* Store state in digest */ for (i = 0; i < 8; i++) @@ -235,66 +241,66 @@ sha512_final(struct crypto_tfm *tfm, u8 *hash) /* Zeroize sensitive information. */ memset(sctx, 0, sizeof(struct sha512_ctx)); + + return 0; } -static void sha384_final(struct crypto_tfm *tfm, u8 *hash) +static int sha384_final(struct shash_desc *desc, u8 *hash) { - u8 D[64]; + u8 D[64]; - sha512_final(tfm, D); + sha512_final(desc, D); - memcpy(hash, D, 48); - memset(D, 0, 64); + memcpy(hash, D, 48); + memset(D, 0, 64); + + return 0; } -static struct crypto_alg sha512 = { - .cra_name = "sha512", - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, - .cra_blocksize = SHA512_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sha512_ctx), - .cra_module = THIS_MODULE, - .cra_alignmask = 3, - .cra_list = LIST_HEAD_INIT(sha512.cra_list), - .cra_u = { .digest = { - .dia_digestsize = SHA512_DIGEST_SIZE, - .dia_init = sha512_init, - .dia_update = sha512_update, - .dia_final = sha512_final } - } +static struct shash_alg sha512 = { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_init, + .update = sha512_update, + .final = sha512_final, + .descsize = sizeof(struct sha512_ctx), + .base = { + .cra_name = "sha512", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } }; -static struct crypto_alg sha384 = { - .cra_name = "sha384", - .cra_flags = CRYPTO_ALG_TYPE_DIGEST, - .cra_blocksize = SHA384_BLOCK_SIZE, - .cra_ctxsize = sizeof(struct sha512_ctx), - .cra_alignmask = 3, - .cra_module = THIS_MODULE, - .cra_list = LIST_HEAD_INIT(sha384.cra_list), - .cra_u = { .digest = { - .dia_digestsize = SHA384_DIGEST_SIZE, - .dia_init = sha384_init, - .dia_update = sha512_update, - .dia_final = sha384_final } - } +static struct shash_alg sha384 = { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_init, + .update = sha512_update, + .final = sha384_final, + .descsize = sizeof(struct sha512_ctx), + .base = { + .cra_name = "sha384", + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } }; static int __init sha512_generic_mod_init(void) { int ret = 0; - if ((ret = crypto_register_alg(&sha384)) < 0) + if ((ret = crypto_register_shash(&sha384)) < 0) goto out; - if ((ret = crypto_register_alg(&sha512)) < 0) - crypto_unregister_alg(&sha384); + if ((ret = crypto_register_shash(&sha512)) < 0) + crypto_unregister_shash(&sha384); out: return ret; } static void __exit sha512_generic_mod_fini(void) { - crypto_unregister_alg(&sha384); - crypto_unregister_alg(&sha512); + crypto_unregister_shash(&sha384); + crypto_unregister_shash(&sha512); } module_init(sha512_generic_mod_init); |
