mirror of
https://github.com/oxen-io/session-android.git
synced 2024-12-20 23:17:29 +00:00
122 lines
4.5 KiB
C
122 lines
4.5 KiB
C
/* crypto/evp/p_verify.c */
|
|
/* 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 "cryptlib.h"
|
|
#include <openssl/evp.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/x509.h>
|
|
|
|
int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
|
|
unsigned int siglen, EVP_PKEY *pkey)
|
|
{
|
|
unsigned char m[EVP_MAX_MD_SIZE];
|
|
unsigned int m_len;
|
|
int i = 0,ok = 0,v;
|
|
EVP_MD_CTX tmp_ctx;
|
|
EVP_PKEY_CTX *pkctx = NULL;
|
|
|
|
EVP_MD_CTX_init(&tmp_ctx);
|
|
if (!EVP_MD_CTX_copy_ex(&tmp_ctx,ctx))
|
|
goto err;
|
|
if (!EVP_DigestFinal_ex(&tmp_ctx,&(m[0]),&m_len))
|
|
goto err;
|
|
EVP_MD_CTX_cleanup(&tmp_ctx);
|
|
|
|
if (ctx->digest->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
|
|
{
|
|
i = -1;
|
|
pkctx = EVP_PKEY_CTX_new(pkey, NULL);
|
|
if (!pkctx)
|
|
goto err;
|
|
if (EVP_PKEY_verify_init(pkctx) <= 0)
|
|
goto err;
|
|
if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0)
|
|
goto err;
|
|
i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
|
|
err:
|
|
EVP_PKEY_CTX_free(pkctx);
|
|
return i;
|
|
}
|
|
|
|
for (i=0; i<4; i++)
|
|
{
|
|
v=ctx->digest->required_pkey_type[i];
|
|
if (v == 0) break;
|
|
if (pkey->type == v)
|
|
{
|
|
ok=1;
|
|
break;
|
|
}
|
|
}
|
|
if (!ok)
|
|
{
|
|
EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE);
|
|
return(-1);
|
|
}
|
|
if (ctx->digest->verify == NULL)
|
|
{
|
|
EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_NO_VERIFY_FUNCTION_CONFIGURED);
|
|
return(0);
|
|
}
|
|
|
|
return(ctx->digest->verify(ctx->digest->type,m,m_len,
|
|
sigbuf,siglen,pkey->pkey.ptr));
|
|
}
|
|
|