-/* crypto/hmac/hmac.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
#include <string.h>
#include "internal/cryptlib.h"
#include <openssl/hmac.h>
+#include <openssl/opensslconf.h>
#include "hmac_lcl.h"
int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
return 0;
}
-#ifndef OPENSSL_NO_DEPRECATED
+#if OPENSSL_API_COMPAT < 0x10100000L
int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
{
if (key && md)
- HMAC_CTX_init(ctx);
+ HMAC_CTX_reset(ctx);
return HMAC_Init_ex(ctx, key, len, md, NULL);
}
#endif
HMAC_CTX *HMAC_CTX_new(void)
{
- HMAC_CTX *ctx = (HMAC_CTX *)OPENSSL_zalloc(sizeof(HMAC_CTX));
- if (ctx)
- if (!HMAC_CTX_init(ctx)) {
+ HMAC_CTX *ctx = OPENSSL_zalloc(sizeof(HMAC_CTX));
+
+ if (ctx != NULL) {
+ if (!HMAC_CTX_reset(ctx)) {
HMAC_CTX_free(ctx);
- ctx = NULL;
+ return NULL;
}
+ }
return ctx;
}
}
}
-int HMAC_CTX_init(HMAC_CTX *ctx)
+int HMAC_CTX_reset(HMAC_CTX *ctx)
{
hmac_ctx_cleanup(ctx);
if (ctx->i_ctx == NULL)
int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
{
- if (!HMAC_CTX_init(dctx))
+ if (!HMAC_CTX_reset(dctx))
goto err;
if (!EVP_MD_CTX_copy_ex(dctx->i_ctx, sctx->i_ctx))
goto err;
{
HMAC_CTX *c = NULL;
static unsigned char m[EVP_MAX_MD_SIZE];
+ static const unsigned char dummy_key[1] = {'\0'};
if (md == NULL)
md = m;
if ((c = HMAC_CTX_new()) == NULL)
goto err;
+
+ /* For HMAC_Init_ex, NULL key signals reuse. */
+ if (key == NULL && key_len == 0) {
+ key = dummy_key;
+ }
+
if (!HMAC_Init_ex(c, key, key_len, evp_md, NULL))
goto err;
if (!HMAC_Update(c, d, n))