2 * Amanda, The Advanced Maryland Automatic Network Disk Archiver
3 * Copyright (c) 1991,1994 University of Maryland
6 * Permission to use, copy, modify, distribute, and sell this software and its
7 * documentation for any purpose is hereby granted without fee, provided that
8 * the above copyright notice appear in all copies and that both that
9 * copyright notice and this permission notice appear in supporting
10 * documentation, and that the name of U.M. not be used in advertising or
11 * publicity pertaining to distribution of the software without specific,
12 * written prior permission. U.M. makes no representations about the
13 * suitability of this software for any purpose. It is provided "as is"
14 * without express or implied warranty.
16 * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
18 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
19 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
20 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
21 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * Author: James da Silva, Systems Design and Analysis Group
24 * Computer Science Department
25 * University of Maryland at College Park
28 * dumper-krb4.c - those bits of dumper code that deal with encrypting
29 * data streams over the network. Even though these just
30 * call the underlying DES routines, the U.S. government
31 * considers this a munition. Go figure.
33 #include "krb4-security.h"
36 * NOTE: This symbol must be the same as DATABUF_SIZE in
37 * client-src/sendbackup-krb4.c
38 * so that the encrypt/decrypt routines are working on the same sized buffers.
39 * Really, this should be moved out of dumper.c so that both programs can use
40 * the same symbol. Hopefully that can be done later. This is good enough
41 * to get encryption working for now...
43 * - Chris Ross (cross@uu.net) 4-Jun-1998
45 #define DATABUF_SIZE DISK_BLOCK_BYTES
50 des_key_schedule sched;
52 void decrypt_initialize()
54 des_key_sched(cred.session, sched);
57 decrypt_buffer(buffer, size)
61 des_pcbc_encrypt((des_cblock *)buffer,
63 size, sched, (des_cblock *)cred.session, DES_DECRYPT);
66 #define NAUGHTY_BITS_INITIALIZE \
67 if(kencrypt) decrypt_initialize()
69 #define NAUGHTY_BITS \
70 if(kencrypt) decrypt_buffer(databuf, DATABUF_SIZE)