mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/* $OpenBSD: md-sha256.c,v 1.5 2006/08/03 03:34:42 deraadt Exp $ */
|
|
/*
|
|
* Copyright (c) 2005 Damien Miller <djm@openbsd.org>
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/* EVP wrapper for SHA256 */
|
|
|
|
#include "includes.h"
|
|
|
|
#include <sys/types.h>
|
|
#include <openssl/opensslv.h>
|
|
|
|
#if !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L)
|
|
|
|
#include <string.h>
|
|
#include <openssl/evp.h>
|
|
#ifdef HAVE_SHA256_UPDATE
|
|
# ifdef HAVE_SHA2_H
|
|
# include <sha2.h>
|
|
# elif defined(HAVE_CRYPTO_SHA2_H)
|
|
# include <crypto/sha2.h>
|
|
# endif
|
|
#endif
|
|
|
|
const EVP_MD *evp_ssh_sha256(void);
|
|
|
|
static int
|
|
ssh_sha256_init(EVP_MD_CTX *ctxt)
|
|
{
|
|
SHA256_Init(ctxt->md_data);
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
ssh_sha256_update(EVP_MD_CTX *ctxt, const void *data, unsigned long len)
|
|
{
|
|
SHA256_Update(ctxt->md_data, data, len);
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
ssh_sha256_final(EVP_MD_CTX *ctxt, unsigned char *digest)
|
|
{
|
|
SHA256_Final(digest, ctxt->md_data);
|
|
return (1);
|
|
}
|
|
|
|
static int
|
|
ssh_sha256_cleanup(EVP_MD_CTX *ctxt)
|
|
{
|
|
memset(ctxt->md_data, 0, sizeof(SHA256_CTX));
|
|
return (1);
|
|
}
|
|
|
|
const EVP_MD *
|
|
evp_ssh_sha256(void)
|
|
{
|
|
static EVP_MD ssh_sha256;
|
|
|
|
memset(&ssh_sha256, 0, sizeof(ssh_sha256));
|
|
ssh_sha256.type = NID_undef;
|
|
ssh_sha256.md_size = SHA256_DIGEST_LENGTH;
|
|
ssh_sha256.init = ssh_sha256_init;
|
|
ssh_sha256.update = ssh_sha256_update;
|
|
ssh_sha256.final = ssh_sha256_final;
|
|
ssh_sha256.cleanup = ssh_sha256_cleanup;
|
|
ssh_sha256.block_size = SHA256_BLOCK_LENGTH;
|
|
ssh_sha256.ctx_size = sizeof(SHA256_CTX);
|
|
|
|
return (&ssh_sha256);
|
|
}
|
|
|
|
#endif /* !defined(HAVE_EVP_SHA256) && (OPENSSL_VERSION_NUMBER >= 0x00907000L) */
|
|
|