Commit Graph

29 Commits

Author SHA1 Message Date
Damien Miller
9b16086e74 - (djm) [myproposal.h] Fix reversed OPENSSL_VERSION_NUMBER test and bad
#define that was causing diffie-hellman-group-exchange-sha256 to be
   incorrectly disabled
2011-01-13 22:00:20 +11:00
Damien Miller
6af914a15c - (djm) [authfd.c authfile.c bufec.c buffer.h configure.ac kex.h kexecdh.c]
[kexecdhc.c kexecdhs.c key.c key.h myproposal.h packet.c readconf.c]
   [ssh-agent.c ssh-ecdsa.c ssh-keygen.c ssh.c] Disable ECDH and ECDSA on
   platforms that don't have the requisite OpenSSL support. ok dtucker@
2010-09-10 11:39:26 +10:00
Damien Miller
0f2635884c - djm@cvs.openbsd.org 2010/09/01 22:42:13
[myproposal.h]
     prefer ECDH in a 256 bit curve field; prompted by naddy@
2010-09-10 11:16:09 +10:00
Damien Miller
eb8b60e320 - djm@cvs.openbsd.org 2010/08/31 11:54:45
[PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c]
     [authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c]
     [monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c]
     [ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c]
     [ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h]
     [ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5]
     [uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c]
     Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and
     host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer
     better performance than plain DH and DSA at the same equivalent symmetric
     key length, as well as much shorter keys.

     Only the mandatory sections of RFC5656 are implemented, specifically the
     three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and
     ECDSA. Point compression (optional in RFC5656 is NOT implemented).

     Certificate host and user keys using the new ECDSA key types are supported.

     Note that this code has not been tested for interoperability and may be
     subject to change.

     feedback and ok markus@
2010-08-31 22:41:14 +10:00
Damien Miller
4e270b05dd - djm@cvs.openbsd.org 2010/04/16 01:47:26
[PROTOCOL.certkeys auth-options.c auth-options.h auth-rsa.c]
     [auth2-pubkey.c authfd.c key.c key.h myproposal.h ssh-add.c]
     [ssh-agent.c ssh-dss.c ssh-keygen.1 ssh-keygen.c ssh-rsa.c]
     [sshconnect.c sshconnect2.c sshd.c]
     revised certificate format ssh-{dss,rsa}-cert-v01@openssh.com with the
     following changes:

     move the nonce field to the beginning of the certificate where it can
     better protect against chosen-prefix attacks on the signature hash

     Rename "constraints" field to "critical options"

     Add a new non-critical "extensions" field

     Add a serial number

     The older format is still support for authentication and cert generation
     (use "ssh-keygen -t v00 -s ca_key ..." to generate a v00 certificate)

     ok markus@
2010-04-16 15:56:21 +10:00
Damien Miller
0a80ca190a - 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@
2010-02-27 07:55:05 +11:00
Damien Miller
67081b5148 - djm@cvs.openbsd.org 2009/01/23 07:58:11
[myproposal.h]
     prefer CTR modes and revised arcfour (i.e w/ discard) modes to CBC
     modes; ok markus@
2009-01-28 16:33:31 +11:00
Damien Miller
e45796f7b4 - pvalchev@cvs.openbsd.org 2007/06/07 19:37:34
[kex.h mac.c mac.h monitor_wrap.c myproposal.h packet.c ssh.1]
     [ssh_config.5 sshd.8 sshd_config.5]
     Add a new MAC algorithm for data integrity, UMAC-64 (not default yet,
     must specify umac-64@openssh.com). Provides about 20% end-to-end speedup
     compared to hmac-md5. Represents a different approach to message
     authentication to that of HMAC that may be beneficial if HMAC based on
     one of its underlying hash algorithms is found to be vulnerable to a
     new attack.  http://www.ietf.org/rfc/rfc4418.txt
     in conjunction with and OK djm@
2007-06-11 14:01:42 +10:00
Damien Miller
51096383e9 - djm@cvs.openbsd.org 2006/03/25 22:22:43
[atomicio.h auth-options.h auth.h auth2-gss.c authfd.h authfile.h]
     [bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h]
     [compat.h compress.h crc32.c crc32.h deattack.h dh.h dispatch.h]
     [dns.c dns.h getput.h groupaccess.h gss-genr.c gss-serv-krb5.c]
     [gss-serv.c hostfile.h includes.h kex.h key.h log.h mac.h match.h]
     [misc.h monitor.h monitor_fdpass.h monitor_mm.h monitor_wrap.h msg.h]
     [myproposal.h packet.h pathnames.h progressmeter.h readconf.h rsa.h]
     [scard.h servconf.h serverloop.h session.h sftp-common.h sftp.h]
     [ssh-gss.h ssh.h ssh1.h ssh2.h sshconnect.h sshlogin.h sshpty.h]
     [ttymodes.h uidswap.h uuencode.h xmalloc.h]
     standardise spacing in $OpenBSD$ tags; requested by deraadt@
2006-03-26 14:30:00 +11:00
Damien Miller
51b4f82123 - deraadt@cvs.openbsd.org 2006/03/19 18:53:12
[kex.h myproposal.h]
     spacing
2006-03-26 00:04:32 +11:00
Tim Rice
425a6886f9 - (tim) [kex.c myproposal.h md-sha256.c openbsd-compat/sha2.c,h] Disable
sha256 when openssl < 0.9.7. Patch from djm@. Corrections/testing by me.
2006-03-15 20:17:05 -08:00
Damien Miller
a63128d1a8 - djm@cvs.openbsd.org 2006/03/07 09:07:40
[kex.c kex.h monitor.c myproposal.h ssh-keyscan.c sshconnect2.c sshd.c]
     Implement the diffie-hellman-group-exchange-sha256 key exchange method
     using the SHA256 code in libc (and wrapper to make it into an OpenSSL
     EVP), interop tested against CVS PuTTY
     NB. no portability bits committed yet
2006-03-15 12:08:28 +11:00
Damien Miller
9786e6e2a0 - markus@cvs.openbsd.org 2005/07/25 11:59:40
[kex.c kex.h myproposal.h packet.c packet.h servconf.c session.c]
     [sshconnect2.c sshd.c sshd_config sshd_config.5]
     add a new compression method that delays compression until the user
     has been authenticated successfully and set compression to 'delayed'
     for sshd.
     this breaks older openssh clients (< 3.5) if they insist on
     compression, so you have to re-enable compression in sshd_config.
     ok djm@
2005-07-26 21:54:56 +10:00
Damien Miller
3710f278ae - djm@cvs.openbsd.org 2005/05/23 23:32:46
[cipher.c myproposal.h ssh.1 ssh_config.5 sshd_config.5]
     add support for draft-harris-ssh-arcfour-fixes-02 improved arcfour modes;
     ok markus@
2005-05-26 12:19:17 +10:00
Damien Miller
f675fc4948 - djm@cvs.openbsd.org 2004/06/13 12:53:24
[dh.c dh.h kex.c kex.h kexdhc.c kexdhs.c monitor.c myproposal.h]
     [ssh-keyscan.c sshconnect2.c sshd.c]
     implement diffie-hellman-group14-sha1 kex method (trivial extension to
     existing diffie-hellman-group1-sha1); ok markus@
2004-06-15 10:30:09 +10:00
Damien Miller
f5399c24dc - markus@cvs.openbsd.org 2003/05/17 04:27:52
[cipher.c cipher-ctr.c myproposal.h]
     experimental support for aes-ctr modes from
     http://www.ietf.org/internet-drafts/draft-ietf-secsh-newmodes-00.txt
     ok djm@
2003-05-18 20:53:59 +10:00
Ben Lindstrom
8a725a843d - markus@cvs.openbsd.org 2002/04/03 09:26:11
[cipher.c myproposal.h]
     re-add rijndael-cbc@lysator.liu.se for MacSSH; ash@lab.poc.net
2002-04-04 22:10:38 +00:00
Damien Miller
914bef437e - markus@cvs.openbsd.org 2002/01/21 22:30:12
[cipher.c compat.c myproposal.h]
     remove "rijndael-*", just use "aes-" since this how rijndael is called
     in the drafts; ok stevesk@
2002-01-22 23:34:35 +11:00
Ben Lindstrom
4c90149c50 - (bal) AES works under Cray, no more hack. 2001-10-06 00:08:09 +00:00
Ben Lindstrom
d9e0824b43 - (bal) Starting the Unicossmk merger. File merged TODO, configure.in,
myproposal.h, ssh_prng_cmds.in, and openbsd-compat/Makefile.in.
	 Added openbsd-compat/bsd-cray.c.  Rest will be merged after
	 approval.  Selective patches from William L. Jones
	 <jones@mail.utexas.edu>
2001-07-22 19:32:00 +00:00
Ben Lindstrom
ec26fb1667 - deraadt@cvs.openbsd.org 2001/03/05 15:56:16
[myproposal.h ssh.1]
     switch to aes128-cbc/hmac-md5 by default in SSH2 -- faster;
     provos & markus ok
2001-03-06 01:05:23 +00:00
Ben Lindstrom
06b33aa0e8 - markus@cvs.openbsd.org 2001/02/11 12:59:25
[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@
2001-02-15 03:01:59 +00:00
Ben Lindstrom
36579d3daa - niklas@cvs.openbsd.org 2001/01/2001
[atomicio.h canohost.h clientloop.h deattack.h dh.h dispatch.h
      groupaccess.c groupaccess.h hmac.h hostfile.h includes.h kex.h
      key.h log.h login.h match.h misc.h myproposal.h nchan.ms pathnames.h
      radix.h readpass.h rijndael.h serverloop.h session.h sftp.h ssh-add.1
      ssh-dss.h ssh-keygen.1 ssh-keyscan.1 ssh-rsa.h ssh1.h ssh_config
      sshconnect.h sshd_config tildexpand.h uidswap.h uuencode.h]
     $OpenBSD$
2001-01-29 07:39:26 +00:00
Damien Miller
0bc1bd814e - (djm) Merge OpenBSD changes:
- markus@cvs.openbsd.org  2000/11/06 16:04:56
     [channels.c channels.h clientloop.c nchan.c serverloop.c]
     [session.c ssh.c]
     agent forwarding and -R for ssh2, based on work from
     jhuuskon@messi.uku.fi
   - markus@cvs.openbsd.org  2000/11/06 16:13:27
     [ssh.c sshconnect.c sshd.c]
     do not disabled rhosts(rsa) if server port > 1024; from
     pekkas@netcore.fi
   - markus@cvs.openbsd.org  2000/11/06 16:16:35
     [sshconnect.c]
     downgrade client to 1.3 if server is 1.4; help from mdb@juniper.net
   - markus@cvs.openbsd.org  2000/11/09 18:04:40
     [auth1.c]
     typo; from mouring@pconline.com
   - markus@cvs.openbsd.org  2000/11/12 12:03:28
     [ssh-agent.c]
     off-by-one when removing a key from the agent
   - markus@cvs.openbsd.org  2000/11/12 12:50:39
     [auth-rh-rsa.c auth2.c authfd.c authfd.h]
     [authfile.c hostfile.c kex.c kex.h key.c key.h myproposal.h]
     [readconf.c readconf.h rsa.c rsa.h servconf.c servconf.h ssh-add.c]
     [ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh.1 ssh.c ssh_config]
     [sshconnect1.c sshconnect2.c sshd.8 sshd.c sshd_config ssh-dss.c]
     [ssh-dss.h ssh-rsa.c ssh-rsa.h dsa.c dsa.h]
     add support for RSA to SSH2.  please test.
     there are now 3 types of keys: RSA1 is used by ssh-1 only,
     RSA and DSA are used by SSH2.
     you can use 'ssh-keygen -t rsa -f ssh2_rsa_file' to generate RSA
     keys for SSH2 and use the RSA keys for hostkeys or for user keys.
     SSH2 RSA or DSA keys are added to .ssh/authorised_keys2 as before.
 - (djm) Fix up Makefile and Redhat init script to create RSA host keys
 - (djm) Change to interim version
2000-11-13 22:57:25 +11:00
Damien Miller
874d77bb13 - (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
2000-10-14 16:23:11 +11:00
Damien Miller
e4340be5b3 - (djm) Merge OpenBSD changes:
- markus@cvs.openbsd.org  2000/09/05 02:59:57
     [session.c]
     print hostname (not hushlogin)
   - markus@cvs.openbsd.org  2000/09/05 13:18:48
     [authfile.c ssh-add.c]
     enable ssh-add -d for DSA keys
   - markus@cvs.openbsd.org  2000/09/05 13:20:49
     [sftp-server.c]
     cleanup
   - markus@cvs.openbsd.org  2000/09/06 03:46:41
     [authfile.h]
     prototype
   - deraadt@cvs.openbsd.org 2000/09/07 14:27:56
     [ALL]
     cleanup copyright notices on all files.  I have attempted to be
     accurate with the details.  everything is now under Tatu's licence
     (which I copied from his readme), and/or the core-sdi bsd-ish thing
     for deattack, or various openbsd developers under a 2-term bsd
     licence.  We're not changing any rules, just being accurate.
   - markus@cvs.openbsd.org  2000/09/07 14:40:30
     [channels.c channels.h clientloop.c serverloop.c ssh.c]
     cleanup window and packet sizes for ssh2 flow control; ok niels
   - markus@cvs.openbsd.org  2000/09/07 14:53:00
     [scp.c]
     typo
   - markus@cvs.openbsd.org  2000/09/07 15:13:37
     [auth-options.c auth-options.h auth-rh-rsa.c auth-rsa.c auth.c]
     [authfile.h canohost.c channels.h compat.c hostfile.h log.c match.h]
     [pty.c readconf.c]
     some more Copyright fixes
   - markus@cvs.openbsd.org  2000/09/08 03:02:51
     [README.openssh2]
     bye bye
   - deraadt@cvs.openbsd.org 2000/09/11 18:38:33
     [LICENCE cipher.c]
     a few more comments about it being ARC4 not RC4
   - markus@cvs.openbsd.org  2000/09/12 14:53:11
     [log-client.c log-server.c log.c ssh.1 ssh.c ssh.h sshd.8 sshd.c]
     multiple debug levels
   - markus@cvs.openbsd.org  2000/09/14 14:25:15
     [clientloop.c]
     typo
   - deraadt@cvs.openbsd.org 2000/09/15 01:13:51
     [ssh-agent.c]
     check return value for setenv(3) for failure, and deal appropriately
2000-09-16 13:29:08 +11:00
Damien Miller
b1715dc0cf - OpenBSD CVS updates:
- markus@cvs.openbsd.org
    [session.c]
    make x11-fwd work w/ localhost (xauth add host/unix:11)
    [cipher.c compat.c readconf.c servconf.c]
    check strtok() != NULL; ok niels@
    [key.c]
    fix key_read() for uuencoded keys w/o '='
    [serverloop.c]
    group ssh1 vs. ssh2 in serverloop
    [kex.c kex.h myproposal.h sshconnect2.c sshd.c]
    split kexinit/kexdh, factor out common code
    [readconf.c ssh.1 ssh.c]
    forwardagent defaults to no, add ssh -A
  - theo@cvs.openbsd.org
    [session.c]
    just some line shortening
2000-05-30 13:44:51 +10:00
Damien Miller
30c3d42930 - OpenBSD CVS update
- markus@cvs.openbsd.org
    [cipher.h myproposal.h readconf.c readconf.h servconf.c ssh.1 ssh.c]
    [ssh.h sshconnect1.c sshconnect2.c sshd.8]
    - complain about invalid ciphers in SSH1 (e.g. arcfour is SSH2 only)
  - hugh@cvs.openbsd.org
    [ssh.1]
    - zap typo
    [ssh-keygen.1]
    - One last nit fix. (markus approved)
    [sshd.8]
    - some markus certified spelling adjustments
  - markus@cvs.openbsd.org
    [auth2.c channels.c clientloop.c compat compat.h dsa.c kex.c]
    [sshconnect2.c ]
    - bug compat w/ ssh-2.0.13 x11, split out bugs
    [nchan.c]
    - no drain if ibuf_empty, fixes x11fwd problems; tests by fries@
    [ssh-keygen.c]
    - handle escapes in real and original key format, ok millert@
    [version.h]
    - OpenSSH-2.1
2000-05-09 11:02:59 +10:00
Damien Miller
1383bd8eb9 - OpenBSD CVS update:
- [channels.c]
     close efd on eof
   - [clientloop.c compat.c ssh.c sshconnect.c myproposal.h]
     ssh2 client implementation, interops w/ ssh.com and lsh servers.
   - [sshconnect.c]
     missing free.
   - [authfile.c cipher.c cipher.h packet.c sshconnect.c sshd.c]
     remove unused argument, split cipher_mask()
   - [clientloop.c]
     re-order: group ssh1 vs. ssh2
 - Make Redhat spec require openssl >= 0.9.5a
2000-04-06 12:32:37 +10:00