summaryrefslogtreecommitdiff
path: root/lib/libcrypto/hmac/hmac.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libcrypto/hmac/hmac.c')
-rw-r--r--lib/libcrypto/hmac/hmac.c166
1 files changed, 84 insertions, 82 deletions
diff --git a/lib/libcrypto/hmac/hmac.c b/lib/libcrypto/hmac/hmac.c
index 690715db2cf..0c29156d80f 100644
--- a/lib/libcrypto/hmac/hmac.c
+++ b/lib/libcrypto/hmac/hmac.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: hmac.c,v 1.18 2014/06/12 15:49:29 deraadt Exp $ */
+/* $OpenBSD: hmac.c,v 1.19 2014/06/21 12:00:01 miod Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
@@ -61,108 +61,107 @@
#include "cryptlib.h"
#include <openssl/hmac.h>
-int HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len,
- const EVP_MD *md, ENGINE *impl)
- {
- int i,j,reset=0;
+int
+HMAC_Init_ex(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md,
+ ENGINE *impl)
+{
+ int i, j, reset = 0;
unsigned char pad[HMAC_MAX_MD_CBLOCK];
- if (md != NULL)
- {
- reset=1;
- ctx->md=md;
- }
- else
- md=ctx->md;
+ if (md != NULL) {
+ reset = 1;
+ ctx->md = md;
+ } else
+ md = ctx->md;
- if (key != NULL)
- {
- reset=1;
- j=EVP_MD_block_size(md);
+ if (key != NULL) {
+ reset = 1;
+ j = EVP_MD_block_size(md);
OPENSSL_assert(j <= (int)sizeof(ctx->key));
- if (j < len)
- {
- if (!EVP_DigestInit_ex(&ctx->md_ctx,md, impl))
+ if (j < len) {
+ if (!EVP_DigestInit_ex(&ctx->md_ctx, md, impl))
goto err;
- if (!EVP_DigestUpdate(&ctx->md_ctx,key,len))
+ if (!EVP_DigestUpdate(&ctx->md_ctx, key, len))
goto err;
- if (!EVP_DigestFinal_ex(&(ctx->md_ctx),ctx->key,
+ if (!EVP_DigestFinal_ex(&(ctx->md_ctx), ctx->key,
&ctx->key_length))
goto err;
- }
- else
- {
+ } else {
OPENSSL_assert(len>=0 && len<=(int)sizeof(ctx->key));
memcpy(ctx->key,key,len);
- ctx->key_length=len;
- }
- if(ctx->key_length != HMAC_MAX_MD_CBLOCK)
+ ctx->key_length = len;
+ }
+ if (ctx->key_length != HMAC_MAX_MD_CBLOCK)
memset(&ctx->key[ctx->key_length], 0,
- HMAC_MAX_MD_CBLOCK - ctx->key_length);
+ HMAC_MAX_MD_CBLOCK - ctx->key_length);
}
- if (reset)
- {
- for (i=0; i<HMAC_MAX_MD_CBLOCK; i++)
- pad[i]=0x36^ctx->key[i];
- if (!EVP_DigestInit_ex(&ctx->i_ctx,md, impl))
+ if (reset) {
+ for (i = 0; i < HMAC_MAX_MD_CBLOCK; i++)
+ pad[i] = 0x36 ^ ctx->key[i];
+ if (!EVP_DigestInit_ex(&ctx->i_ctx, md, impl))
goto err;
- if (!EVP_DigestUpdate(&ctx->i_ctx,pad,EVP_MD_block_size(md)))
+ if (!EVP_DigestUpdate(&ctx->i_ctx, pad, EVP_MD_block_size(md)))
goto err;
- for (i=0; i<HMAC_MAX_MD_CBLOCK; i++)
- pad[i]=0x5c^ctx->key[i];
- if (!EVP_DigestInit_ex(&ctx->o_ctx,md, impl))
+ for (i = 0; i < HMAC_MAX_MD_CBLOCK; i++)
+ pad[i] = 0x5c ^ ctx->key[i];
+ if (!EVP_DigestInit_ex(&ctx->o_ctx, md, impl))
goto err;
- if (!EVP_DigestUpdate(&ctx->o_ctx,pad,EVP_MD_block_size(md)))
- goto err;
- }
- if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->i_ctx))
+ if (!EVP_DigestUpdate(&ctx->o_ctx, pad, EVP_MD_block_size(md)))
goto err;
+ }
+ if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx, &ctx->i_ctx))
+ goto err;
return 1;
- err:
+err:
return 0;
- }
+}
-int HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
- {
- if(key && md)
+int
+HMAC_Init(HMAC_CTX *ctx, const void *key, int len, const EVP_MD *md)
+{
+ if (key && md)
HMAC_CTX_init(ctx);
return HMAC_Init_ex(ctx,key,len,md, NULL);
- }
+}
-int HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
- {
+int
+HMAC_Update(HMAC_CTX *ctx, const unsigned char *data, size_t len)
+{
return EVP_DigestUpdate(&ctx->md_ctx,data,len);
- }
+}
-int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
- {
+int
+HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
+{
unsigned int i;
unsigned char buf[EVP_MAX_MD_SIZE];
- if (!EVP_DigestFinal_ex(&ctx->md_ctx,buf,&i))
+ if (!EVP_DigestFinal_ex(&ctx->md_ctx, buf, &i))
goto err;
- if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx,&ctx->o_ctx))
+ if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx, &ctx->o_ctx))
goto err;
- if (!EVP_DigestUpdate(&ctx->md_ctx,buf,i))
+ if (!EVP_DigestUpdate(&ctx->md_ctx, buf, i))
goto err;
- if (!EVP_DigestFinal_ex(&ctx->md_ctx,md,len))
+ if (!EVP_DigestFinal_ex(&ctx->md_ctx, md, len))
goto err;
return 1;
- err:
+err:
return 0;
- }
+}
-void HMAC_CTX_init(HMAC_CTX *ctx)
- {
+void
+HMAC_CTX_init(HMAC_CTX *ctx)
+{
EVP_MD_CTX_init(&ctx->i_ctx);
EVP_MD_CTX_init(&ctx->o_ctx);
EVP_MD_CTX_init(&ctx->md_ctx);
- }
+}
-int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
- {
+int
+HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
+{
if (!EVP_MD_CTX_copy(&dctx->i_ctx, &sctx->i_ctx))
goto err;
if (!EVP_MD_CTX_copy(&dctx->o_ctx, &sctx->o_ctx))
@@ -173,42 +172,45 @@ int HMAC_CTX_copy(HMAC_CTX *dctx, HMAC_CTX *sctx)
dctx->key_length = sctx->key_length;
dctx->md = sctx->md;
return 1;
- err:
+err:
return 0;
- }
+}
-void HMAC_CTX_cleanup(HMAC_CTX *ctx)
- {
+void
+HMAC_CTX_cleanup(HMAC_CTX *ctx)
+{
EVP_MD_CTX_cleanup(&ctx->i_ctx);
EVP_MD_CTX_cleanup(&ctx->o_ctx);
EVP_MD_CTX_cleanup(&ctx->md_ctx);
- memset(ctx,0,sizeof *ctx);
- }
+ memset(ctx, 0, sizeof *ctx);
+}
-unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len,
- const unsigned char *d, size_t n, unsigned char *md,
- unsigned int *md_len)
- {
+unsigned char *
+HMAC(const EVP_MD *evp_md, const void *key, int key_len, const unsigned char *d,
+ size_t n, unsigned char *md, unsigned int *md_len)
+{
HMAC_CTX c;
static unsigned char m[EVP_MAX_MD_SIZE];
- if (md == NULL) md=m;
+ if (md == NULL)
+ md = m;
HMAC_CTX_init(&c);
- if (!HMAC_Init(&c,key,key_len,evp_md))
+ if (!HMAC_Init(&c, key, key_len, evp_md))
goto err;
- if (!HMAC_Update(&c,d,n))
+ if (!HMAC_Update(&c, d, n))
goto err;
- if (!HMAC_Final(&c,md,md_len))
+ if (!HMAC_Final(&c, md, md_len))
goto err;
HMAC_CTX_cleanup(&c);
return md;
- err:
+err:
return NULL;
- }
+}
-void HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
- {
+void
+HMAC_CTX_set_flags(HMAC_CTX *ctx, unsigned long flags)
+{
EVP_MD_CTX_set_flags(&ctx->i_ctx, flags);
EVP_MD_CTX_set_flags(&ctx->o_ctx, flags);
EVP_MD_CTX_set_flags(&ctx->md_ctx, flags);
- }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-28 18:37:38 +0000