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Add HMAC-SHA384

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For now, this is only implemented with OpenSSL.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-01-26 00:37:18 +02:00
parent 98cd3d1c3b
commit 97ae35a848
6 changed files with 67 additions and 1 deletions
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3
hostapd/Android.mk
View file

@ -768,6 +768,9 @@ ifdef NEED_TLS_PRF_SHA256
OBJS += src/crypto/sha256-tlsprf.c
endif
endif
ifdef NEED_SHA384
L_CFLAGS += -DCONFIG_SHA384
endif
ifdef NEED_DH_GROUPS
OBJS += src/crypto/dh_groups.c

3
hostapd/Makefile
View file

@ -764,6 +764,9 @@ ifdef NEED_HMAC_SHA256_KDF
OBJS += ../src/crypto/sha256-kdf.o
endif
endif
ifdef NEED_SHA384
CFLAGS += -DCONFIG_SHA384
endif
ifdef NEED_DH_GROUPS
OBJS += ../src/crypto/dh_groups.o

37
src/crypto/crypto_openssl.c
View file

@ -1,6 +1,6 @@
/*
* Wrapper functions for OpenSSL libcrypto
* Copyright (c) 2004-2013, Jouni Malinen <j@w1.fi>
* Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@ -28,6 +28,7 @@
#include "dh_group5.h"
#include "sha1.h"
#include "sha256.h"
#include "sha384.h"
#include "crypto.h"
#if OPENSSL_VERSION_NUMBER < 0x00907000
@ -786,6 +787,40 @@ int hmac_sha256(const u8 *key, size_t key_len, const u8 *data,
#endif /* CONFIG_SHA256 */
#ifdef CONFIG_SHA384
int hmac_sha384_vector(const u8 *key, size_t key_len, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac)
{
HMAC_CTX ctx;
size_t i;
unsigned int mdlen;
int res;
HMAC_CTX_init(&ctx);
if (HMAC_Init_ex(&ctx, key, key_len, EVP_sha384(), NULL) != 1)
return -1;
for (i = 0; i < num_elem; i++)
HMAC_Update(&ctx, addr[i], len[i]);
mdlen = 32;
res = HMAC_Final(&ctx, mac, &mdlen);
HMAC_CTX_cleanup(&ctx);
return res == 1 ? 0 : -1;
}
int hmac_sha384(const u8 *key, size_t key_len, const u8 *data,
size_t data_len, u8 *mac)
{
return hmac_sha384_vector(key, key_len, 1, &data, &data_len, mac);
}
#endif /* CONFIG_SHA384 */
int crypto_get_random(void *buf, size_t len)
{
if (RAND_bytes(buf, len) != 1)

19
src/crypto/sha384.h Normal file
View file

@ -0,0 +1,19 @@
/*
* SHA384 hash implementation and interface functions
* Copyright (c) 2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef SHA384_H
#define SHA384_H
#define SHA384_MAC_LEN 48
int hmac_sha384_vector(const u8 *key, size_t key_len, size_t num_elem,
const u8 *addr[], const size_t *len, u8 *mac);
int hmac_sha384(const u8 *key, size_t key_len, const u8 *data,
size_t data_len, u8 *mac);
#endif /* SHA384_H */

3
wpa_supplicant/Android.mk
View file

@ -1237,6 +1237,9 @@ SHA256OBJS += src/crypto/sha256-kdf.c
endif
OBJS += $(SHA256OBJS)
endif
ifdef NEED_SHA384
L_CFLAGS += -DCONFIG_SHA384
endif
ifdef NEED_DH_GROUPS
OBJS += src/crypto/dh_groups.c

3
wpa_supplicant/Makefile
View file

@ -1250,6 +1250,9 @@ OBJS += ../src/crypto/sha256-kdf.o
endif
OBJS += $(SHA256OBJS)
endif
ifdef NEED_SHA384
CFLAGS += -DCONFIG_SHA384
endif
ifdef NEED_DH_GROUPS
OBJS += ../src/crypto/dh_groups.o