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- markus@cvs.openbsd.org 2000/06/18 18:50:11 [auth2.c compat.c compat.h sshconnect2.c] make userauth+pubkey interop with ssh.com-2.2.0 - markus@cvs.openbsd.org 2000/06/18 20:56:17 [dsa.c] mem leak + be more paranoid in dsa_verify. - markus@cvs.openbsd.org 2000/06/18 21:29:50 [key.c] cleanup fingerprinting, less hardcoded sizes - markus@cvs.openbsd.org 2000/06/19 19:39:45 [atomicio.c auth-options.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c] [auth-rsa.c auth-skey.c authfd.c authfd.h authfile.c bufaux.c bufaux.h] [buffer.c buffer.h canohost.c channels.c channels.h cipher.c cipher.h] [clientloop.c compat.c compat.h compress.c compress.h crc32.c crc32.h] [deattack.c dispatch.c dsa.c fingerprint.c fingerprint.h getput.h hmac.c] [kex.c log-client.c log-server.c login.c match.c mpaux.c mpaux.h nchan.c] [nchan.h packet.c packet.h pty.c pty.h readconf.c readconf.h readpass.c] [rsa.c rsa.h scp.c servconf.c servconf.h ssh-add.c ssh-keygen.c ssh.c] [ssh.h tildexpand.c ttymodes.c ttymodes.h uidswap.c xmalloc.c xmalloc.h] OpenBSD tag - markus@cvs.openbsd.org 2000/06/21 10:46:10 sshconnect2.c missing free; nuke old comment
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
/*
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*
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* mpaux.c
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*
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* Author: Tatu Ylonen <ylo@cs.hut.fi>
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*
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* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
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* All rights reserved
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*
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* Created: Sun Jul 16 04:29:30 1995 ylo
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*
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* This file contains various auxiliary functions related to multiple
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* precision integers.
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*
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*/
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#include "includes.h"
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RCSID("$OpenBSD: mpaux.c,v 1.13 2000/06/20 01:39:42 markus Exp $");
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#include <openssl/bn.h>
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#include "getput.h"
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#include "xmalloc.h"
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#include <openssl/md5.h>
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void
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compute_session_id(unsigned char session_id[16],
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unsigned char cookie[8],
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BIGNUM* host_key_n,
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BIGNUM* session_key_n)
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{
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unsigned int host_key_bytes = BN_num_bytes(host_key_n);
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unsigned int session_key_bytes = BN_num_bytes(session_key_n);
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unsigned int bytes = host_key_bytes + session_key_bytes;
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unsigned char *buf = xmalloc(bytes);
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MD5_CTX md;
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BN_bn2bin(host_key_n, buf);
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BN_bn2bin(session_key_n, buf + host_key_bytes);
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MD5_Init(&md);
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MD5_Update(&md, buf, bytes);
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MD5_Update(&md, cookie, 8);
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MD5_Final(session_id, &md);
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memset(buf, 0, bytes);
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xfree(buf);
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}
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