- OpenBSD CVS Sync

   - djm@cvs.openbsd.org 2010/02/26 20:29:54
     [PROTOCOL PROTOCOL.agent PROTOCOL.certkeys addrmatch.c auth-options.c]
     [auth-options.h auth.h auth2-pubkey.c authfd.c dns.c dns.h hostfile.c]
     [hostfile.h kex.h kexdhs.c kexgexs.c key.c key.h match.h monitor.c]
     [myproposal.h servconf.c servconf.h ssh-add.c ssh-agent.c ssh-dss.c]
     [ssh-keygen.1 ssh-keygen.c ssh-rsa.c ssh.1 ssh.c ssh2.h sshconnect.c]
     [sshconnect2.c sshd.8 sshd.c sshd_config.5]
     Add support for certificate key types for users and hosts.

     OpenSSH certificate key types are not X.509 certificates, but a much
     simpler format that encodes a public key, identity information and
     some validity constraints and signs it with a CA key. CA keys are
     regular SSH keys. This certificate style avoids the attack surface
     of X.509 certificates and is very easy to deploy.

     Certified host keys allow automatic acceptance of new host keys
     when a CA certificate is marked as sh/known_hosts.
     see VERIFYING HOST KEYS in ssh(1) for details.

     Certified user keys allow authentication of users when the signing
     CA key is marked as trusted in authorized_keys. See "AUTHORIZED_KEYS
     FILE FORMAT" in sshd(8) for details.

     Certificates are minted using ssh-keygen(1), documentation is in
     the "CERTIFICATES" section of that manpage.

     Documentation on the format of certificates is in the file
     PROTOCOL.certkeys

     feedback and ok markus@

1 files changed, 4 insertions, 1 deletions

diff --git a/servconf.h b/servconf.h
index c9b8619cd..c5c9c6ecd 100644
--- a/servconf.h
+++ b/servconf.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: servconf.h,v 1.90 2010/01/13 03:48:13 djm Exp $ */
+/* $OpenBSD: servconf.h,v 1.91 2010/02/26 20:29:54 djm Exp $ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -24,6 +24,7 @@
 #define MAX_DENY_GROUPS         256     /* Max # groups on deny list. */
 #define MAX_SUBSYSTEMS          256     /* Max # subsystems. */
 #define MAX_HOSTKEYS            256     /* Max # hostkeys. */
+#define MAX_HOSTCERTS           256     /* Max # host certificates. */
 #define MAX_ACCEPT_ENV          256     /* Max # of env vars. */
 #define MAX_MATCH_GROUPS        256     /* Max # of groups for Match. */
 
@@ -49,6 +50,8 @@ typedef struct {
         int     address_family;         /* Address family used by the server. */
         char   *host_key_files[MAX_HOSTKEYS];   /* Files containing host keys. */
         int     num_host_key_files;     /* Number of files for host keys. */
+        char   *host_cert_files[MAX_HOSTCERTS]; /* Files containing host certs. */
+        int     num_host_cert_files;     /* Number of files for host certs. */
         char   *pid_file;       /* Where to put our pid */
         int     server_key_bits;/* Size of the server key. */
         int     login_grace_time;       /* Disconnect if no auth in this time