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crypto: Add CRYPTO_HASH_ALG_SHA384 and CRYPTO_HASH_ALG_SHA512

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This extends the crypto_hash_*() API to support SHA384 and SHA512 when
built with CONFIG_TLS=internal.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-11-29 18:14:50 +02:00
parent 0aed9156ef
commit c0acec3934
2 changed files with 52 additions and 1 deletions
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3
src/crypto/crypto.h
View file

@ -157,7 +157,8 @@ void aes_decrypt_deinit(void *ctx);
enum crypto_hash_alg {
CRYPTO_HASH_ALG_MD5, CRYPTO_HASH_ALG_SHA1,
CRYPTO_HASH_ALG_HMAC_MD5, CRYPTO_HASH_ALG_HMAC_SHA1,
CRYPTO_HASH_ALG_SHA256, CRYPTO_HASH_ALG_HMAC_SHA256
CRYPTO_HASH_ALG_SHA256, CRYPTO_HASH_ALG_HMAC_SHA256,
CRYPTO_HASH_ALG_SHA384, CRYPTO_HASH_ALG_SHA512
};
struct crypto_hash;

50
src/crypto/crypto_internal.c
View file

@ -11,6 +11,8 @@
#include "common.h"
#include "crypto.h"
#include "sha256_i.h"
#include "sha384_i.h"
#include "sha512_i.h"
#include "sha1_i.h"
#include "md5_i.h"
@ -22,6 +24,12 @@ struct crypto_hash {
#ifdef CONFIG_SHA256
struct sha256_state sha256;
#endif /* CONFIG_SHA256 */
#ifdef CONFIG_INTERNAL_SHA384
struct sha384_state sha384;
#endif /* CONFIG_INTERNAL_SHA384 */
#ifdef CONFIG_INTERNAL_SHA512
struct sha512_state sha512;
#endif /* CONFIG_INTERNAL_SHA512 */
} u;
u8 key[64];
size_t key_len;
@ -54,6 +62,16 @@ struct crypto_hash * crypto_hash_init(enum crypto_hash_alg alg, const u8 *key,
sha256_init(&ctx->u.sha256);
break;
#endif /* CONFIG_SHA256 */
#ifdef CONFIG_INTERNAL_SHA384
case CRYPTO_HASH_ALG_SHA384:
sha384_init(&ctx->u.sha384);
break;
#endif /* CONFIG_INTERNAL_SHA384 */
#ifdef CONFIG_INTERNAL_SHA512
case CRYPTO_HASH_ALG_SHA512:
sha512_init(&ctx->u.sha512);
break;
#endif /* CONFIG_INTERNAL_SHA512 */
case CRYPTO_HASH_ALG_HMAC_MD5:
if (key_len > sizeof(k_pad)) {
MD5Init(&ctx->u.md5);
@ -142,6 +160,16 @@ void crypto_hash_update(struct crypto_hash *ctx, const u8 *data, size_t len)
sha256_process(&ctx->u.sha256, data, len);
break;
#endif /* CONFIG_SHA256 */
#ifdef CONFIG_INTERNAL_SHA384
case CRYPTO_HASH_ALG_SHA384:
sha384_process(&ctx->u.sha384, data, len);
break;
#endif /* CONFIG_INTERNAL_SHA384 */
#ifdef CONFIG_INTERNAL_SHA512
case CRYPTO_HASH_ALG_SHA512:
sha512_process(&ctx->u.sha512, data, len);
break;
#endif /* CONFIG_INTERNAL_SHA512 */
default:
break;
}
@ -191,6 +219,28 @@ int crypto_hash_finish(struct crypto_hash *ctx, u8 *mac, size_t *len)
sha256_done(&ctx->u.sha256, mac);
break;
#endif /* CONFIG_SHA256 */
#ifdef CONFIG_INTERNAL_SHA384
case CRYPTO_HASH_ALG_SHA384:
if (*len < 48) {
*len = 48;
os_free(ctx);
return -1;
}
*len = 48;
sha384_done(&ctx->u.sha384, mac);
break;
#endif /* CONFIG_INTERNAL_SHA384 */
#ifdef CONFIG_INTERNAL_SHA512
case CRYPTO_HASH_ALG_SHA512:
if (*len < 64) {
*len = 64;
os_free(ctx);
return -1;
}
*len = 64;
sha512_done(&ctx->u.sha512, mac);
break;
#endif /* CONFIG_INTERNAL_SHA512 */
case CRYPTO_HASH_ALG_HMAC_MD5:
if (*len < 16) {
*len = 16;