X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/374330e25a6b51c40436fa869a381dd510790f6e..74091dffae1760356be823c68fa307cd93c4c30b:/sshdes.c

diff --git a/sshdes.c b/sshdes.c
index 897457a0..83d4d26a 100644
--- a/sshdes.c
+++ b/sshdes.c
@@ -16,21 +16,6 @@ information.
 
 */
 
-/*
- * $Id: sshdes.c,v 1.1 1999/01/08 13:02:12 simon Exp $
- * $Log: sshdes.c,v $
- * Revision 1.1  1999/01/08 13:02:12  simon
- * Initial checkin: beta 0.43
- *
- * Revision 1.1.1.1  1996/02/18 21:38:11  ylo
- * 	Imported ssh-1.2.13.
- *
- * Revision 1.2  1995/07/13  01:22:57  ylo
- * 	Added cvs log.
- *
- * $Endlog$
- */
-
 typedef struct
 {
   word32 key_schedule[32];
@@ -110,21 +95,6 @@ cryptography and data security, including the following:
 
 */
 
-/*
- * $Id: sshdes.c,v 1.1 1999/01/08 13:02:12 simon Exp $
- * $Log: sshdes.c,v $
- * Revision 1.1  1999/01/08 13:02:12  simon
- * Initial checkin: beta 0.43
- *
- * Revision 1.1.1.1  1996/02/18 21:38:11  ylo
- * 	Imported ssh-1.2.13.
- *
- * Revision 1.2  1995/07/13  01:22:25  ylo
- * 	Added cvs log.
- *
- * $Endlog$
- */
-
 /* Table for key generation.  This used to be in sk.h. */
 /* Copyright (C) 1993 Eric Young - see README for more details */
 static const word32 des_skb[8][64]={
@@ -687,6 +657,7 @@ static void des3_sesskey(unsigned char *key) {
     memset(div1, 0, sizeof(div1));
     memset(div2, 0, sizeof(div2));
     memset(div3, 0, sizeof(div3));
+    logevent("Initialised triple-DES encryption");
 }
 
 static void des3_encrypt_blk(unsigned char *blk, int len) {
@@ -703,6 +674,28 @@ struct ssh_cipher ssh_3des = {
     des3_decrypt_blk
 };
 
+static void des_sesskey(unsigned char *key) {
+    des_set_key(key, &ekey1);
+    memset(eiv1, 0, sizeof(eiv1));
+    des_set_key(key, &dkey1);
+    memset(div1, 0, sizeof(div1));
+    logevent("Initialised single-DES encryption");
+}
+
+static void des_encrypt_blk(unsigned char *blk, int len) {
+    des_cbc_encrypt(&ekey1, eiv1, blk, blk, len);
+}
+
+static void des_decrypt_blk(unsigned char *blk, int len) {
+    des_cbc_decrypt(&dkey1, div1, blk, blk, len);
+}
+
+struct ssh_cipher ssh_des = {
+    des_sesskey,
+    des_encrypt_blk,
+    des_decrypt_blk
+};
+
 #ifdef DES_TEST
 
 void des_encrypt_buf(DESContext *ks, unsigned char *out,