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openssh/md-sha256.c
Damien Miller d783435315 - deraadt@cvs.openbsd.org 2006/08/03 03:34:42
[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c]
     [auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
     [auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c]
     [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ]
     [auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c]
     [buffer.c buffer.h canohost.c channels.c channels.h 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 dns.c dns.h fatal.c groupaccess.c]
     [groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
     [kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c]
     [key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c]
     [monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c]
     [monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c]
     [readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h]
     [serverloop.c session.c session.h sftp-client.c sftp-common.c]
     [sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c]
     [ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c]
     [ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c]
     [sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c]
     [uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h]
     [loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h]
     almost entirely get rid of the culture of ".h files that include .h files"
     ok djm, sort of ok stevesk
     makes the pain stop in one easy step
     NB. portable commit contains everything *except* removing includes.h, as
     that will take a fair bit more work as we move headers that are required
     for portability workarounds to defines.h. (also, this step wasn't "easy")
2006-08-05 12:39:39 +10:00

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) */