diff options
Diffstat (limited to 'crypto/kerberosIV/lib/krb/mk_priv.c')
| -rw-r--r-- | crypto/kerberosIV/lib/krb/mk_priv.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/crypto/kerberosIV/lib/krb/mk_priv.c b/crypto/kerberosIV/lib/krb/mk_priv.c deleted file mode 100644 index 97a91c5..0000000 --- a/crypto/kerberosIV/lib/krb/mk_priv.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * Copyright (c) 1995, 1996, 1997, 1998 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * 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. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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. - */ -/* $FreeBSD$ */ - -#include "krb_locl.h" - -RCSID("$Id: mk_priv.c,v 1.22 1999/12/02 16:58:43 joda Exp $"); - -/* application include files */ -#include "krb-archaeology.h" - -/* - * krb_mk_priv() constructs an AUTH_MSG_PRIVATE message. It takes - * some user data "in" of "length" bytes and creates a packet in "out" - * consisting of the user data, a timestamp, and the sender's network - * address. - * The packet is encrypted by pcbc_encrypt(), using the given - * "key" and "schedule". - * The length of the resulting packet "out" is - * returned. - * - * It is similar to krb_mk_safe() except for the additional key - * schedule argument "schedule" and the fact that the data is encrypted - * rather than appended with a checksum. The protocol version is - * KRB_PROT_VERSION, defined in "krb.h". - * - * The "out" packet consists of: - * - * Size Variable Field - * ---- -------- ----- - * - * 1 byte KRB_PROT_VERSION protocol version number - * 1 byte AUTH_MSG_PRIVATE | message type plus local - * HOST_BYTE_ORDER byte order in low bit - * - * 4 bytes c_length length of data - * we encrypt from here with pcbc_encrypt - * - * 4 bytes length length of user data - * length in user data - * 1 byte msg_time_5ms timestamp milliseconds - * 4 bytes sender->sin.addr.s_addr sender's IP address - * - * 4 bytes msg_time_sec or timestamp seconds with - * -msg_time_sec direction in sign bit - * - * 0<=n<=7 bytes pad to 8 byte multiple zeroes - */ - -int32_t -krb_mk_priv(void *in, void *out, u_int32_t length, - des_key_schedule schedule, des_cblock *key, - struct sockaddr_in *sender, struct sockaddr_in *receiver) -{ - unsigned char *p = (unsigned char*)out; - unsigned char *cipher; - - struct timeval tv; - u_int32_t src_addr; - u_int32_t len; - - p += krb_put_int(KRB_PROT_VERSION, p, 1, 1); - p += krb_put_int(AUTH_MSG_PRIVATE, p, 1, 1); - - len = 4 + length + 1 + 4 + 4; - len = (len + 7) & ~7; - p += krb_put_int(len, p, 4, 4); - - cipher = p; - - p += krb_put_int(length, p, 4, 4); - - memcpy(p, in, length); - p += length; - - krb_kdctimeofday(&tv); - - *p++ =tv.tv_usec / 5000; - - src_addr = sender->sin_addr.s_addr; - p += krb_put_address(src_addr, p, 4); - - p += krb_put_int(lsb_time(tv.tv_sec, sender, receiver), p, 4, 4); - - memset(p, 0, 7); - - des_pcbc_encrypt((des_cblock *)cipher, (des_cblock *)cipher, - len, schedule, key, DES_ENCRYPT); - - return (cipher - (unsigned char*)out) + len; -} |
