- (djm) Big OpenBSD sync:

   - markus@cvs.openbsd.org  2000/09/30 10:27:44
     [log.c]
     allow loglevel debug
   - markus@cvs.openbsd.org  2000/10/03 11:59:57
     [packet.c]
     hmac->mac
   - markus@cvs.openbsd.org  2000/10/03 12:03:03
     [auth-krb4.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth1.c]
     move fake-auth from auth1.c to individual auth methods, disables s/key in
     debug-msg
   - markus@cvs.openbsd.org  2000/10/03 12:16:48
     ssh.c
     do not resolve canonname, i have no idea why this was added oin ossh
   - markus@cvs.openbsd.org  2000/10/09 15:30:44
     ssh-keygen.1 ssh-keygen.c
     -X now reads private ssh.com DSA keys, too.
   - markus@cvs.openbsd.org  2000/10/09 15:32:34
     auth-options.c
     clear options on every call.
   - markus@cvs.openbsd.org  2000/10/09 15:51:00
     authfd.c authfd.h
     interop with ssh-agent2, from <res@shore.net>
   - markus@cvs.openbsd.org  2000/10/10 14:20:45
     compat.c
     use rexexp for version string matching
   - provos@cvs.openbsd.org  2000/10/10 22:02:18
     [kex.c kex.h myproposal.h ssh.h ssh2.h sshconnect2.c sshd.c dh.c dh.h]
     First rough implementation of the diffie-hellman group exchange.  The
     client can ask the server for bigger groups to perform the diffie-hellman
     in, thus increasing the attack complexity when using ciphers with longer
     keys.  University of Windsor provided network, T the company.
   - markus@cvs.openbsd.org  2000/10/11 13:59:52
     [auth-rsa.c auth2.c]
     clear auth options unless auth sucessfull
   - markus@cvs.openbsd.org  2000/10/11 14:00:27
     [auth-options.h]
     clear auth options unless auth sucessfull
   - markus@cvs.openbsd.org  2000/10/11 14:03:27
     [scp.1 scp.c]
     support 'scp -o' with help from mouring@pconline.com
   - markus@cvs.openbsd.org  2000/10/11 14:11:35
     [dh.c]
     Wall
   - markus@cvs.openbsd.org  2000/10/11 14:14:40
     [auth.h auth2.c readconf.c readconf.h readpass.c servconf.c servconf.h]
     [ssh.h sshconnect2.c sshd_config auth2-skey.c cli.c cli.h]
     add support for s/key (kbd-interactive) to ssh2, based on work by
     mkiernan@avantgo.com and me
   - markus@cvs.openbsd.org  2000/10/11 14:27:24
     [auth.c auth1.c auth2.c authfile.c cipher.c cipher.h kex.c kex.h]
     [myproposal.h packet.c readconf.c session.c ssh.c ssh.h sshconnect1.c]
     [sshconnect2.c sshd.c]
     new cipher framework
   - markus@cvs.openbsd.org  2000/10/11 14:45:21
     [cipher.c]
     remove DES
   - markus@cvs.openbsd.org  2000/10/12 03:59:20
     [cipher.c cipher.h sshconnect1.c sshconnect2.c sshd.c]
     enable DES in SSH-1 clients only
   - markus@cvs.openbsd.org  2000/10/12 08:21:13
     [kex.h packet.c]
     remove unused
   - markus@cvs.openbsd.org  2000/10/13 12:34:46
     [sshd.c]
     Kludge for F-Secure Macintosh < 1.0.2; appro@fy.chalmers.se
   - markus@cvs.openbsd.org  2000/10/13 12:59:15
     [cipher.c cipher.h myproposal.h  rijndael.c rijndael.h]
     rijndael/aes support
   - markus@cvs.openbsd.org  2000/10/13 13:10:54
     [sshd.8]
     more info about -V
   - markus@cvs.openbsd.org  2000/10/13 13:12:02
     [myproposal.h]
     prefer no compression

1 files changed, 26 insertions, 9 deletions

diff --git a/kex.h b/kex.h
index 8c89687b6..212958131 100644
--- a/kex.h
+++ b/kex.h
@@ -24,8 +24,9 @@
 #ifndef KEX_H
 #define KEX_H
 
-#define KEX_DH1 "diffie-hellman-group1-sha1"
-#define KEX_DSS "ssh-dss"
+#define KEX_DH1         "diffie-hellman-group1-sha1"
+#define KEX_DHGEX       "diffie-hellman-group-exchange-sha1"
+#define KEX_DSS         "ssh-dss"
 
 enum kex_init_proposals {
         PROPOSAL_KEX_ALGS,
@@ -47,28 +48,30 @@ enum kex_modes {
         MODE_MAX
 };
 
+enum kex_exchange {
+        DH_GRP1_SHA1,
+        DH_GEX_SHA1
+};
+                
 typedef struct Kex Kex;
 typedef struct Mac Mac;
 typedef struct Comp Comp;
 typedef struct Enc Enc;
 
 struct Enc {
-        int             type;
+        char            *name;
+        Cipher          *cipher;
         int             enabled;
-        int             block_size;
         unsigned char   *key;
         unsigned char   *iv;
-        int             key_len;
-        int             iv_len;
-        char            *name;
 };
 struct Mac {
-        EVP_MD          *md;
+        char            *name;
         int             enabled;
+        EVP_MD          *md;
         int             mac_len;
         unsigned char   *key;
         int             key_len;
-        char            *name;
 };
 struct Comp {
         int             type;
@@ -83,6 +86,7 @@ struct Kex {
         int             server;
         char            *name;
         char            *hostkeyalg;
+        int             kex_type;
 };
 
 Buffer  *kex_init(char *myproposal[PROPOSAL_MAX]);
@@ -96,6 +100,8 @@ kex_choose_conf(char *cprop[PROPOSAL_MAX],
 int     kex_derive_keys(Kex *k, unsigned char *hash, BIGNUM *shared_secret);
 void    packet_set_kex(Kex *k);
 int     dh_pub_is_valid(DH *dh, BIGNUM *dh_pub);
+DH      *dh_new_group_asc(const char *, const char *);
+DH      *dh_new_group(BIGNUM *, BIGNUM *);
 DH      *dh_new_group1();
 
 unsigned char *
@@ -109,4 +115,15 @@ kex_hash(
     BIGNUM *server_dh_pub,
     BIGNUM *shared_secret);
 
+unsigned char *
+kex_hash_gex(
+    char *client_version_string,
+    char *server_version_string,
+    char *ckexinit, int ckexinitlen,
+    char *skexinit, int skexinitlen,
+    char *serverhostkeyblob, int sbloblen,
+    int minbits, BIGNUM *prime, BIGNUM *gen,
+    BIGNUM *client_dh_pub,
+    BIGNUM *server_dh_pub,
+    BIGNUM *shared_secret);
 #endif