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Simon Josefsson 2007-01-16 15:51:31 +00:00
parent 22225099bc
commit b4d7a4eede
2 changed files with 159 additions and 0 deletions
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93
src/libgcrypt.c Normal file
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/* Copyright (C) 2006, 2007 The Written Word, Inc. All rights reserved.
* Author: Simon Josefsson
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* 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.
*
* Neither the name of the copyright holder nor the names
* of any other contributors may be used to endorse or
* promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "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 COPYRIGHT OWNER 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.
*/
#include "libgcrypt.h"
int _libssh2_rsa_new(libssh2_rsa_ctx **rsa,
const unsigned char *edata,
unsigned long elen,
const unsigned char *ndata,
unsigned long nlen)
{
int rc;
rc = gcry_sexp_build (rsa, NULL, "(public-key(rsa(n%b)(e%b)))",
nlen, ndata, elen, edata);
if (rc)
{
*rsa = NULL;
return -1;
}
return 0;
}
int _libssh2_rsa_sha1_verify(libssh2_rsa_ctx *rsa,
const unsigned char *sig,
unsigned long sig_len,
const unsigned char *m,
unsigned long m_len)
{
unsigned char hash[SHA_DIGEST_LENGTH];
int ret;
gcry_sexp_t s_sig, s_hash;
int rc = -1;
libssh2_sha1(m, m_len, hash);
rc = gcry_sexp_build (&s_hash, NULL,
"(data (flags pkcs1) (hash sha1 %b))",
SHA_DIGEST_LENGTH, hash);
if (rc != 0)
{
return -1;
}
rc = gcry_sexp_build (&s_sig, NULL, "(sig-val(rsa(s %b)))",
sig_len, sig);
if (rc != 0)
{
gcry_sexp_release (s_hash);
return -1;
}
rc = gcry_pk_verify (s_sig, s_hash, rsa);
gcry_sexp_release (s_sig);
gcry_sexp_release (s_hash);
return (rc == 0) ? 0 : -1;
}

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src/openssl.c Normal file
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/* Copyright (C) 2006, 2007 The Written Word, Inc. All rights reserved.
* Author: Simon Josefsson
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
*
* 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.
*
* Neither the name of the copyright holder nor the names
* of any other contributors may be used to endorse or
* promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "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 COPYRIGHT OWNER 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.
*/
#include "openssl.h"
void _libssh2_rsa_new(libssh2_rsa_ctx **rsa,
const unsigned char *edata,
unsigned long elen,
const unsigned char *ndata,
unsigned long nlen)
{
*rsa = RSA_new();
(*rsa)->e = BN_new();
BN_bin2bn(edata, elen, (*rsa)->e);
(*rsa)->n = BN_new();
BN_bin2bn(ndata, nlen, (*rsa)->n);
}
int _libssh2_rsa_sha1_verify(libssh2_rsa_ctx *rsactx,
const unsigned char *sig,
unsigned long sig_len,
const unsigned char *m,
unsigned long m_len)
{
unsigned char hash[SHA_DIGEST_LENGTH];
int ret;
SHA1(m, m_len, hash);
ret = RSA_verify(NID_sha1, hash, SHA_DIGEST_LENGTH,
(unsigned char *)sig, sig_len, rsactx);
return (ret == 1) ? 0 : -1;
}