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check in v3.8.2 source

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torque
2023-11-06 23:46:37 -08:00
parent e2db88c634
commit 2b68369a2b
1216 changed files with 563118 additions and 0 deletions
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171
crypto/hmac/hm_ameth.c Normal file
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/* $OpenBSD: hm_ameth.c,v 1.19 2022/11/26 16:08:53 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2007.
*/
/* ====================================================================
* Copyright (c) 2007 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include "asn1_local.h"
#include "bytestring.h"
#include "evp_local.h"
#include "hmac_local.h"
static int
hmac_pkey_public_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
{
/* The ameth pub_cmp must return 1 on match, 0 on mismatch. */
return ASN1_OCTET_STRING_cmp(a->pkey.ptr, b->pkey.ptr) == 0;
}
static int
hmac_size(const EVP_PKEY *pkey)
{
return EVP_MAX_MD_SIZE;
}
static void
hmac_key_free(EVP_PKEY *pkey)
{
ASN1_OCTET_STRING *os;
if ((os = pkey->pkey.ptr) == NULL)
return;
if (os->data != NULL)
explicit_bzero(os->data, os->length);
ASN1_OCTET_STRING_free(os);
}
static int
hmac_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
{
switch (op) {
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
*(int *)arg2 = NID_sha1;
return 1;
default:
return -2;
}
}
static int
hmac_set_priv_key(EVP_PKEY *pkey, const unsigned char *priv, size_t len)
{
ASN1_OCTET_STRING *os = NULL;
if (pkey->pkey.ptr != NULL)
goto err;
if (len > INT_MAX)
goto err;
if ((os = ASN1_OCTET_STRING_new()) == NULL)
goto err;
if (!ASN1_OCTET_STRING_set(os, priv, len))
goto err;
pkey->pkey.ptr = os;
return 1;
err:
ASN1_OCTET_STRING_free(os);
return 0;
}
static int
hmac_get_priv_key(const EVP_PKEY *pkey, unsigned char *priv, size_t *len)
{
ASN1_OCTET_STRING *os;
CBS cbs;
if ((os = pkey->pkey.ptr) == NULL)
return 0;
if (priv == NULL) {
*len = os->length;
return 1;
}
CBS_init(&cbs, os->data, os->length);
return CBS_write_bytes(&cbs, priv, *len, len);
}
const EVP_PKEY_ASN1_METHOD hmac_asn1_meth = {
.pkey_id = EVP_PKEY_HMAC,
.pkey_base_id = EVP_PKEY_HMAC,
.pem_str = "HMAC",
.info = "OpenSSL HMAC method",
.pub_cmp = hmac_pkey_public_cmp,
.pkey_size = hmac_size,
.pkey_free = hmac_key_free,
.pkey_ctrl = hmac_pkey_ctrl,
.set_priv_key = hmac_set_priv_key,
.get_priv_key = hmac_get_priv_key,
};

254
crypto/hmac/hm_pmeth.c Normal file
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/* $OpenBSD: hm_pmeth.c,v 1.15 2022/11/26 16:08:53 tb Exp $ */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2007.
*/
/* ====================================================================
* Copyright (c) 2007 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include <string.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "evp_local.h"
#include "hmac_local.h"
/* HMAC pkey context structure */
typedef struct {
const EVP_MD *md; /* MD for HMAC use */
ASN1_OCTET_STRING ktmp; /* Temp storage for key */
HMAC_CTX ctx;
} HMAC_PKEY_CTX;
static int
pkey_hmac_init(EVP_PKEY_CTX *ctx)
{
HMAC_PKEY_CTX *hctx;
if ((hctx = calloc(1, sizeof(HMAC_PKEY_CTX))) == NULL)
return 0;
hctx->ktmp.type = V_ASN1_OCTET_STRING;
HMAC_CTX_init(&hctx->ctx);
ctx->data = hctx;
ctx->keygen_info_count = 0;
return 1;
}
static int
pkey_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
{
HMAC_PKEY_CTX *sctx, *dctx;
if (!pkey_hmac_init(dst))
return 0;
sctx = src->data;
dctx = dst->data;
dctx->md = sctx->md;
HMAC_CTX_init(&dctx->ctx);
if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx))
return 0;
if (sctx->ktmp.data) {
if (!ASN1_OCTET_STRING_set(&dctx->ktmp, sctx->ktmp.data,
sctx->ktmp.length))
return 0;
}
return 1;
}
static void
pkey_hmac_cleanup(EVP_PKEY_CTX *ctx)
{
HMAC_PKEY_CTX *hctx;
if ((hctx = ctx->data) == NULL)
return;
HMAC_CTX_cleanup(&hctx->ctx);
freezero(hctx->ktmp.data, hctx->ktmp.length);
free(hctx);
}
static int
pkey_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
ASN1_OCTET_STRING *hkey = NULL;
HMAC_PKEY_CTX *hctx = ctx->data;
if (!hctx->ktmp.data)
return 0;
hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
if (!hkey)
return 0;
EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);
return 1;
}
static int
int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
HMAC_PKEY_CTX *hctx = ctx->pctx->data;
if (!HMAC_Update(&hctx->ctx, data, count))
return 0;
return 1;
}
static int
hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
{
HMAC_PKEY_CTX *hctx = ctx->data;
HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT);
EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
mctx->update = int_update;
return 1;
}
static int
hmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
EVP_MD_CTX *mctx)
{
unsigned int hlen;
HMAC_PKEY_CTX *hctx = ctx->data;
int l = EVP_MD_CTX_size(mctx);
if (l < 0)
return 0;
*siglen = l;
if (!sig)
return 1;
if (!HMAC_Final(&hctx->ctx, sig, &hlen))
return 0;
*siglen = (size_t)hlen;
return 1;
}
static int
pkey_hmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
HMAC_PKEY_CTX *hctx = ctx->data;
ASN1_OCTET_STRING *key;
switch (type) {
case EVP_PKEY_CTRL_SET_MAC_KEY:
if ((!p2 && p1 > 0) || (p1 < -1))
return 0;
if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
return 0;
break;
case EVP_PKEY_CTRL_MD:
hctx->md = p2;
break;
case EVP_PKEY_CTRL_DIGESTINIT:
key = ctx->pkey->pkey.ptr;
if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md,
ctx->engine))
return 0;
break;
default:
return -2;
}
return 1;
}
static int
pkey_hmac_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value)
{
if (!value)
return 0;
if (!strcmp(type, "key")) {
void *p = (void *)value;
return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p);
}
if (!strcmp(type, "hexkey")) {
unsigned char *key;
int r;
long keylen;
key = string_to_hex(value, &keylen);
if (!key)
return 0;
r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
free(key);
return r;
}
return -2;
}
const EVP_PKEY_METHOD hmac_pkey_meth = {
.pkey_id = EVP_PKEY_HMAC,
.init = pkey_hmac_init,
.copy = pkey_hmac_copy,
.cleanup = pkey_hmac_cleanup,
.keygen = pkey_hmac_keygen,
.signctx_init = hmac_signctx_init,
.signctx = hmac_signctx,
.ctrl = pkey_hmac_ctrl,
.ctrl_str = pkey_hmac_ctrl_str
};

293
crypto/hmac/hmac.c Normal file
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/* $OpenBSD: hmac.c,v 1.31 2023/02/16 08:38:17 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/err.h>
#include <openssl/hmac.h>
#include "evp_local.h"
#include "hmac_local.h"
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 we are changing MD then we must have a key */
if (md != NULL && md != ctx->md && (key == NULL || len < 0))
return 0;
if (md != NULL) {
reset = 1;
ctx->md = md;
} else if (ctx->md != NULL)
md = ctx->md;
else
return 0;
if (key != NULL) {
reset = 1;
j = EVP_MD_block_size(md);
if ((size_t)j > sizeof(ctx->key)) {
EVPerror(EVP_R_BAD_BLOCK_LENGTH);
goto err;
}
if (j < len) {
if (!EVP_DigestInit_ex(&ctx->md_ctx, md, impl))
goto err;
if (!EVP_DigestUpdate(&ctx->md_ctx, key, len))
goto err;
if (!EVP_DigestFinal_ex(&(ctx->md_ctx), ctx->key,
&ctx->key_length))
goto err;
} else {
if (len < 0 || (size_t)len > sizeof(ctx->key)) {
EVPerror(EVP_R_BAD_KEY_LENGTH);
goto err;
}
memcpy(ctx->key, key, len);
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);
}
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)))
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))
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))
goto err;
return 1;
err:
return 0;
}
LCRYPTO_ALIAS(HMAC_Init_ex);
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)
{
if (ctx->md == NULL)
return 0;
return EVP_DigestUpdate(&ctx->md_ctx, data, len);
}
LCRYPTO_ALIAS(HMAC_Update);
int
HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len)
{
unsigned int i;
unsigned char buf[EVP_MAX_MD_SIZE];
if (ctx->md == NULL)
goto err;
if (!EVP_DigestFinal_ex(&ctx->md_ctx, buf, &i))
goto err;
if (!EVP_MD_CTX_copy_ex(&ctx->md_ctx, &ctx->o_ctx))
goto err;
if (!EVP_DigestUpdate(&ctx->md_ctx, buf, i))
goto err;
if (!EVP_DigestFinal_ex(&ctx->md_ctx, md, len))
goto err;
return 1;
err:
return 0;
}
LCRYPTO_ALIAS(HMAC_Final);
HMAC_CTX *
HMAC_CTX_new(void)
{
HMAC_CTX *ctx;
if ((ctx = calloc(1, sizeof(*ctx))) == NULL)
return NULL;
HMAC_CTX_init(ctx);
return ctx;
}
LCRYPTO_ALIAS(HMAC_CTX_new);
void
HMAC_CTX_free(HMAC_CTX *ctx)
{
if (ctx == NULL)
return;
HMAC_CTX_cleanup(ctx);
free(ctx);
}
LCRYPTO_ALIAS(HMAC_CTX_free);
int
HMAC_CTX_reset(HMAC_CTX *ctx)
{
HMAC_CTX_cleanup(ctx);
HMAC_CTX_init(ctx);
return 1;
}
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);
ctx->md = NULL;
}
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))
goto err;
if (!EVP_MD_CTX_copy(&dctx->md_ctx, &sctx->md_ctx))
goto err;
memcpy(dctx->key, sctx->key, HMAC_MAX_MD_CBLOCK);
dctx->key_length = sctx->key_length;
dctx->md = sctx->md;
return 1;
err:
return 0;
}
LCRYPTO_ALIAS(HMAC_CTX_copy);
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);
explicit_bzero(ctx, sizeof(*ctx));
}
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);
}
LCRYPTO_ALIAS(HMAC_CTX_set_flags);
const EVP_MD *
HMAC_CTX_get_md(const HMAC_CTX *ctx)
{
return ctx->md;
}
LCRYPTO_ALIAS(HMAC_CTX_get_md);
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];
const unsigned char dummy_key[1] = { 0 };
if (md == NULL)
md = m;
if (key == NULL) {
key = dummy_key;
key_len = 0;
}
HMAC_CTX_init(&c);
if (!HMAC_Init_ex(&c, key, key_len, evp_md, NULL))
goto err;
if (!HMAC_Update(&c, d, n))
goto err;
if (!HMAC_Final(&c, md, md_len))
goto err;
HMAC_CTX_cleanup(&c);
return md;
err:
HMAC_CTX_cleanup(&c);
return NULL;
}
LCRYPTO_ALIAS(HMAC);

83
crypto/hmac/hmac_local.h Normal file
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@@ -0,0 +1,83 @@
/* $OpenBSD: hmac_local.h,v 1.4 2022/11/26 16:08:53 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef HEADER_HMAC_LOCAL_H
#define HEADER_HMAC_LOCAL_H
#include <openssl/opensslconf.h>
#include <openssl/evp.h>
#include "evp_local.h"
__BEGIN_HIDDEN_DECLS
struct hmac_ctx_st {
const EVP_MD *md;
EVP_MD_CTX md_ctx;
EVP_MD_CTX i_ctx;
EVP_MD_CTX o_ctx;
unsigned int key_length;
unsigned char key[HMAC_MAX_MD_CBLOCK];
} /* HMAC_CTX */;
void HMAC_CTX_init(HMAC_CTX *ctx);
void HMAC_CTX_cleanup(HMAC_CTX *ctx);
__END_HIDDEN_DECLS
#endif /* !HEADER_HMAC_LOCAL_H */