• Damien Miller's avatar
    - OpenBSD CVS Sync · 0a80ca19
    Damien Miller authored
       - 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
         feedback and ok markus@