diff options
Diffstat (limited to 'crypto/openssh/mac.c')
-rw-r--r-- | crypto/openssh/mac.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/crypto/openssh/mac.c b/crypto/openssh/mac.c deleted file mode 100644 index e5d5bfa..0000000 --- a/crypto/openssh/mac.c +++ /dev/null @@ -1,125 +0,0 @@ -/* $OpenBSD: mac.c,v 1.12 2006/08/03 03:34:42 deraadt Exp $ */ -/* - * Copyright (c) 2001 Markus Friedl. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 "includes.h" - -#include <sys/types.h> - -#include <openssl/hmac.h> - -#include <stdarg.h> -#include <string.h> -#include <signal.h> - -#include "xmalloc.h" -#include "log.h" -#include "cipher.h" -#include "buffer.h" -#include "key.h" -#include "kex.h" -#include "mac.h" -#include "misc.h" - -struct { - char *name; - const EVP_MD * (*mdfunc)(void); - int truncatebits; /* truncate digest if != 0 */ -} macs[] = { - { "hmac-sha1", EVP_sha1, 0, }, - { "hmac-sha1-96", EVP_sha1, 96 }, - { "hmac-md5", EVP_md5, 0 }, - { "hmac-md5-96", EVP_md5, 96 }, - { "hmac-ripemd160", EVP_ripemd160, 0 }, - { "hmac-ripemd160@openssh.com", EVP_ripemd160, 0 }, - { NULL, NULL, 0 } -}; - -int -mac_init(Mac *mac, char *name) -{ - int i, evp_len; - - for (i = 0; macs[i].name; i++) { - if (strcmp(name, macs[i].name) == 0) { - if (mac != NULL) { - mac->md = (*macs[i].mdfunc)(); - if ((evp_len = EVP_MD_size(mac->md)) <= 0) - fatal("mac %s len %d", name, evp_len); - mac->key_len = mac->mac_len = (u_int)evp_len; - if (macs[i].truncatebits != 0) - mac->mac_len = macs[i].truncatebits/8; - } - debug2("mac_init: found %s", name); - return (0); - } - } - debug2("mac_init: unknown %s", name); - return (-1); -} - -u_char * -mac_compute(Mac *mac, u_int32_t seqno, u_char *data, int datalen) -{ - HMAC_CTX c; - static u_char m[EVP_MAX_MD_SIZE]; - u_char b[4]; - - if (mac->key == NULL) - fatal("mac_compute: no key"); - if (mac->mac_len > sizeof(m)) - fatal("mac_compute: mac too long"); - HMAC_Init(&c, mac->key, mac->key_len, mac->md); - put_u32(b, seqno); - HMAC_Update(&c, b, sizeof(b)); - HMAC_Update(&c, data, datalen); - HMAC_Final(&c, m, NULL); - HMAC_cleanup(&c); - return (m); -} - -/* XXX copied from ciphers_valid */ -#define MAC_SEP "," -int -mac_valid(const char *names) -{ - char *maclist, *cp, *p; - - if (names == NULL || strcmp(names, "") == 0) - return (0); - maclist = cp = xstrdup(names); - for ((p = strsep(&cp, MAC_SEP)); p && *p != '\0'; - (p = strsep(&cp, MAC_SEP))) { - if (mac_init(NULL, p) < 0) { - debug("bad mac %s [%s]", p, names); - xfree(maclist); - return (0); - } else { - debug3("mac ok: %s [%s]", p, names); - } - } - debug3("macs ok: [%s]", names); - xfree(maclist); - return (1); -} |