openssh/md-sha256.c
Damien Miller 57c30117c1 - djm@cvs.openbsd.org 2006/03/25 13:17:03
[atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c]
     [auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c]
     [auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
     [auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c]
     [buffer.c canohost.c channels.c cipher-3des1.c cipher-bf1.c]
     [cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c compress.c]
     [deattack.c dh.c dispatch.c fatal.c groupaccess.c hostfile.c kex.c]
     [kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c]
     [mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c]
     [monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c]
     [readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c]
     [session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c]
     [sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
     [ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
     [sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
     [uidswap.c uuencode.c xmalloc.c]
     Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that
     Theo nuked - our scripts to sync -portable need them in the files
2006-03-26 14:24:48 +11:00

85 lines
2.2 KiB
C

/* $OpenBSD: md-sha256.c,v 1.3 2006/03/25 13:17:02 djm 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 <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) */