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Encrypt network packets in CBC mode instead of CFB mode.

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(This breaks compatibility with all previous versions!)
This commit is contained in:
Guus Sliepen 2001-02-25 16:34:19 +00:00
parent 9de5787574
commit 54881faf6f
2 changed files with 6 additions and 6 deletions
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6
src/net.c
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@ -17,7 +17,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: net.c,v 1.35.4.95 2001/02/25 16:04:00 guus Exp $
$Id: net.c,v 1.35.4.96 2001/02/25 16:34:17 guus Exp $
*/
#include "config.h"
@ -112,7 +112,7 @@ int xsend(connection_t *cl, vpn_packet_t *inpkt)
cp
outpkt.len = inpkt->len;
/* Encrypt the packet. FIXME: we should use CBC, not CFB. */
/* Encrypt the packet. */
EVP_EncryptInit(&ctx, cl->cipher_pkttype, cl->cipher_pktkey, cl->cipher_pktkey + cl->cipher_pkttype->key_len);
EVP_EncryptUpdate(&ctx, outpkt.data, &outlen, inpkt->data, inpkt->len);
@ -816,7 +816,7 @@ cp
cp
/* Generate packet encryption key */
myself->cipher_pkttype = EVP_bf_cfb();
myself->cipher_pkttype = EVP_bf_cbc();
myself->cipher_pktkeylength = myself->cipher_pkttype->key_len + myself->cipher_pkttype->iv_len;

6
src/protocol.c
View file

@ -17,7 +17,7 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
$Id: protocol.c,v 1.28.4.79 2001/02/25 11:09:29 guus Exp $
$Id: protocol.c,v 1.28.4.80 2001/02/25 16:34:19 guus Exp $
*/
#include "config.h"
@ -613,7 +613,7 @@ cp
cl->status.active = 1;
cl->status.decryptin = 1;
cl->nexthop = cl;
cl->cipher_pkttype = EVP_bf_cfb();
cl->cipher_pkttype = EVP_bf_cbc();
cl->cipher_pktkeylength = cl->cipher_pkttype->key_len + cl->cipher_pkttype->iv_len;
if(debug_lvl >= DEBUG_CONNECTIONS)
@ -929,7 +929,7 @@ cp
new->nexthop = cl;
new->status.active = 1;
new->cipher_pkttype = EVP_bf_cfb();
new->cipher_pkttype = EVP_bf_cbc();
new->cipher_pktkeylength = cl->cipher_pkttype->key_len + cl->cipher_pkttype->iv_len;
cp
return 0;