[auth.h auth2.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h]
[readconf.c readconf.h servconf.c servconf.h ssh2.h ssh_config.5]
[sshconnect2.c sshd_config.5 jpake.c jpake.h schnorr.c auth2-jpake.c]
[Makefile.in]
Add support for an experimental zero-knowledge password authentication
method using the J-PAKE protocol described in F. Hao, P. Ryan,
"Password Authenticated Key Exchange by Juggling", 16th Workshop on
Security Protocols, Cambridge, April 2008.
This method allows password-based authentication without exposing
the password to the server. Instead, the client and server exchange
cryptographic proofs to demonstrate of knowledge of the password while
revealing nothing useful to an attacker or compromised endpoint.
This is experimental, work-in-progress code and is presently
compiled-time disabled (turn on -DJPAKE in Makefile.inc).
"just commit it. It isn't too intrusive." deraadt@
[readconf.c readconf.h ssh.1 ssh_config.5 sshconnect.c]
Move SSH Fingerprint Visualization away from sharing the config option
CheckHostIP to an own config option named VisualHostKey.
While there, fix the behaviour that ssh would draw a random art picture
on every newly seen host even when the option was not enabled.
prodded by deraadt@, discussions,
help and ok markus@ djm@ dtucker@
[ssh_config.5 key.h readconf.c readconf.h ssh-keygen.1 ssh-keygen.c key.c
sshconnect.c]
Introduce SSH Fingerprint ASCII Visualization, a technique inspired by the
graphical hash visualization schemes known as "random art", and by
Dan Kaminsky's musings on the subject during a BlackOp talk at the
23C3 in Berlin.
Scientific publication (original paper):
"Hash Visualization: a New Technique to improve Real-World Security",
Perrig A. and Song D., 1999, International Workshop on Cryptographic
Techniques and E-Commerce (CrypTEC '99)
http://sparrow.ece.cmu.edu/~adrian/projects/validation/validation.pdf
The algorithm used here is a worm crawling over a discrete plane,
leaving a trace (augmenting the field) everywhere it goes.
Movement is taken from dgst_raw 2bit-wise. Bumping into walls
makes the respective movement vector be ignored for this turn,
thus switching to the other color of the chessboard.
Graphs are not unambiguous for now, because circles in graphs can be
walked in either direction.
discussions with several people,
help, corrections and ok markus@ djm@
[readconf.c readconf.h sshconnect2.c]
promote rekeylimit to a int64 so it can hold the maximum useful limit
of 2^32; report and patch from Jan.Pechanec AT Sun.COM, ok dtucker@
[clientloop.c ssh.1 ssh.c channels.c ssh_config.5 readconf.h session.c
channels.h readconf.c]
add ExitOnForwardFailure: terminate the connection if ssh(1)
cannot set up all requested dynamic, local, and remote port
forwardings. ok djm, dtucker, stevesk, jmc
[auth-options.c auth-options.h channels.c channels.h clientloop.c]
[misc.c misc.h readconf.c readconf.h scp.c servconf.c servconf.h]
[serverloop.c sftp.c ssh.1 ssh.c ssh_config ssh_config.5 sshconnect.c]
[sshconnect.h sshd.8 sshd_config sshd_config.5]
Add support for tun(4) forwarding over OpenSSH, based on an idea and
initial channel code bits by markus@. This is a simple and easy way to
use OpenSSH for ad hoc virtual private network connections, e.g.
administrative tunnels or secure wireless access. It's based on a new
ssh channel and works similar to the existing TCP forwarding support,
except that it depends on the tun(4) network interface on both ends of
the connection for layer 2 or layer 3 tunneling. This diff also adds
support for LocalCommand in the ssh(1) client.
ok djm@, markus@, jmc@ (manpages), tested and discussed with others
[clientloop.c readconf.c readconf.h ssh.c ssh_config.5]
add ControlMaster=auto/autoask options to support opportunistic
multiplexing; tested avsm@ and jakob@, ok markus@
[hostfile.c hostfile.h readconf.c readconf.h ssh.1 ssh_config.5]
[sshconnect.c sshd.8]
add support for hashing host names and addresses added to known_hosts
files, to improve privacy of which hosts user have been visiting; ok
markus@ deraadt@
[auth-options.c channels.c channels.h clientloop.c compat.c compat.h]
[misc.c misc.h readconf.c readconf.h servconf.c ssh.1 ssh.c ssh_config.5]
[sshd_config.5]
bz#413: allow optional specification of bind address for port forwardings.
Patch originally by Dan Astorian, but worked on by several people
Adds GatewayPorts=clientspecified option on server to allow remote
forwards to bind to client-specified ports.
[channels.c channels.h clientloop.c clientloop.h includes.h readconf.c]
[readconf.h scp.1 sftp.1 ssh.1 ssh.c ssh_config.5]
implement session multiplexing in the client (the server has supported
this since 2.0); ok markus@
[readconf.c readconf.h servconf.c servconf.h session.c session.h ssh.c
ssh_config.5 sshd_config.5]
bz #815: implement ability to pass specified environment variables from
the client to the server; ok markus@
[readconf.c readconf.h ssh-keysign.c ssh.c]
perform strict ownership and modes checks for ~/.ssh/config files,
as these can be used to execute arbitrary programs; ok markus@
NB. ssh will now exit when it detects a config with poor permissions
[clientloop.c clientloop.h readconf.c readconf.h scp.1 sftp.1 ssh.1]
[ssh.c ssh_config.5]
application layer keep alive (ServerAliveInterval ServerAliveCountMax)
for ssh(1), similar to the sshd(8) option; ok beck@; with help from
jmc and dtucker@
[readconf.c readconf.h scp.1 servconf.c servconf.h sftp.1 ssh.1]
[ssh_config.5 sshconnect.c sshd.c sshd_config.5]
rename keepalive to tcpkeepalive; the old name causes too much
confusion; ok djm, dtucker; with help from jmc@
[readconf.c readconf.h ssh.1 ssh.c ssh_config.5]
remote x11 clients are now untrusted by default, uses xauth(8) to generate
untrusted cookies; ForwardX11Trusted=yes restores old behaviour.
ok deraadt; feedback and ok djm/fries
[auth2.c auth2-gss.c auth.h compat.c compat.h gss-genr.c gss-serv-krb5.c
gss-serv.c monitor.c monitor.h monitor_wrap.c monitor_wrap.h readconf.c
readconf.h servconf.c servconf.h session.c session.h ssh-gss.h
ssh_config.5 sshconnect2.c sshd_config sshd_config.5]
support GSS API user authentication; patches from Simon Wilkinson,
stripped down and tested by Jakob and myself.
[readconf.c readconf.h ssh_config ssh_config.5 sshconnect.c]
add a ConnectTimeout option to ssh, based on patch from
Jean-Charles Longuet (jclonguet at free.fr); portable #207 ok markus@
[key.c key.h readconf.c readconf.h ssh_config.5 sshconnect.c]
[dns.c dns.h README.dns ssh-keygen.1 ssh-keygen.c]
add experimental support for verifying hos keys using DNS as described
in draft-ietf-secsh-dns-xx.txt. more information in README.dns.
ok markus@ and henning@
[clientloop.c monitor.c monitor_wrap.c packet.c packet.h readconf.c]
[readconf.h serverloop.c sshconnect2.c]
rekeying bugfixes and automatic rekeying:
* both client and server rekey _automatically_
(a) after 2^31 packets, because after 2^32 packets
the sequence number for packets wraps
(b) after 2^(blocksize_in_bits/4) blocks
(see: draft-ietf-secsh-newmodes-00.txt)
(a) and (b) are _enabled_ by default, and only disabled for known
openssh versions, that don't support rekeying properly.
* client option 'RekeyLimit'
* do not reply to requests during rekeying
- markus@cvs.openbsd.org 2003/04/01 10:22:21
[clientloop.c monitor.c monitor_wrap.c packet.c packet.h readconf.c]
[readconf.h serverloop.c sshconnect2.c]
backout rekeying changes (for 3.6.1)
[readconf.c readconf.h ssh-keysign.8 ssh-keysign.c]
we cannot use HostbasedAuthentication for enabling ssh-keysign(8),
because HostbasedAuthentication might be enabled based on the
target host and ssh-keysign(8) does not know the remote hostname
and not trust ssh(1) about the hostname, so we add a new option
EnableSSHKeysign; ok djm@, report from zierke@informatik.uni-hamburg.de
[readconf.c readconf.h ssh.1 ssh.c]
add 'SmartcardDevice' client option to specify which smartcard device
is used to access a smartcard used for storing the user's private RSA
key. ok markus@.
[auth-chall.c auth.h auth1.c auth2-chall.c auth2.c readconf.c
readconf.h servconf.c servconf.h sshconnect1.c sshconnect2.c sshd.c]
improved kbd-interactive support. work by per@appgate.com and me
[compat.c compat.h readconf.h ssh.c sshconnect1.c sshconnect2.c]
implement client side of SSH2_MSG_USERAUTH_PK_OK (test public key ->
no need to do enter passphrase or do expensive sign operations if the
server does not accept key).
[Makefile.in sshd.8 sshconnect2.c readconf.h readconf.c packet.c
sshd.c ssh.c ssh.1 servconf.h servconf.c myproposal.h kex.h kex.c]
1) clean up the MAC support for SSH-2
2) allow you to specify the MAC with 'ssh -m'
3) or the 'MACs' keyword in ssh(d)_config
4) add hmac-{md5,sha1}-96
ok stevesk@, provos@
