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2014-01-12 - djm@cvs.openbsd.org 2014/01/12 08:13:13Damien Miller
[bufaux.c buffer.h kex.c kex.h kexc25519.c kexc25519c.c kexc25519s.c] [kexdhc.c kexdhs.c kexecdhc.c kexecdhs.c kexgexc.c kexgexs.c] avoid use of OpenSSL BIGNUM type and functions for KEX with Curve25519 by adding a buffer_put_bignum2_from_string() that stores a string using the bignum encoding rules. Will make it easier to build a reduced-feature OpenSSH without OpenSSL in the future; ok markus@
2014-01-10 - djm@cvs.openbsd.org 2014/01/09 23:20:00Damien Miller
[digest.c digest.h hostfile.c kex.c kex.h kexc25519.c kexc25519c.c] [kexc25519s.c kexdh.c kexecdh.c kexecdhc.c kexecdhs.c kexgex.c kexgexc.c] [kexgexs.c key.c key.h roaming_client.c roaming_common.c schnorr.c] [schnorr.h ssh-dss.c ssh-ecdsa.c ssh-rsa.c sshconnect2.c] Introduce digest API and use it to perform all hashing operations rather than calling OpenSSL EVP_Digest* directly. Will make it easier to build a reduced-feature OpenSSH without OpenSSL in future; feedback, ok markus@
2013-11-08 - dtucker@cvs.openbsd.org 2013/11/07 11:58:27Damien Miller
[cipher.c cipher.h kex.c kex.h mac.c mac.h servconf.c ssh.c] Output the effective values of Ciphers, MACs and KexAlgorithms when the default has not been overridden. ok markus@
2013-11-04 - markus@cvs.openbsd.org 2013/11/02 21:59:15Damien Miller
[kex.c kex.h myproposal.h ssh-keyscan.c sshconnect2.c sshd.c] use curve25519 for default key exchange (curve25519-sha256@libssh.org); initial patch from Aris Adamantiadis; ok djm@
2013-07-20 - markus@cvs.openbsd.org 2013/07/19 07:37:48Damien Miller
[auth.h kex.h kexdhs.c kexecdhs.c kexgexs.c monitor.c servconf.c] [servconf.h session.c sshd.c sshd_config.5] add ssh-agent(1) support to sshd(8); allows encrypted hostkeys, or hostkeys on smartcards; most of the work by Zev Weiss; bz #1974 ok djm@
2013-04-23 - djm@cvs.openbsd.org 2013/04/19 01:06:50Damien Miller
[authfile.c cipher.c cipher.h kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c] [key.c key.h mac.c mac.h packet.c ssh.1 ssh.c] add the ability to query supported ciphers, MACs, key type and KEX algorithms to ssh. Includes some refactoring of KEX and key type handling to be table-driven; ok markus@
2013-01-09 - markus@cvs.openbsd.org 2013/01/08 18:49:04Damien Miller
[PROTOCOL authfile.c cipher.c cipher.h kex.c kex.h monitor_wrap.c] [myproposal.h packet.c ssh_config.5 sshd_config.5] support AES-GCM as defined in RFC 5647 (but with simpler KEX handling) ok and feedback djm@
2012-12-12 - markus@cvs.openbsd.org 2012/12/11 22:31:18Damien Miller
[PROTOCOL authfile.c cipher.c cipher.h kex.h mac.c myproposal.h] [packet.c ssh_config.5 sshd_config.5] add encrypt-then-mac (EtM) modes to openssh by defining new mac algorithms that change the packet format and compute the MAC over the encrypted message (including the packet size) instead of the plaintext data; these EtM modes are considered more secure and used by default. feedback and ok djm@
2010-09-24 - djm@cvs.openbsd.org 2010/09/22 05:01:30Damien Miller
[kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h] [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5] add a KexAlgorithms knob to the client and server configuration to allow selection of which key exchange methods are used by ssh(1) and sshd(8) and their order of preference. ok markus@
2010-09-10 - (dtucker) [kex.h key.c packet.h ssh-agent.c ssh.c] A few more ECC ifdefsDarren Tucker
for missing headers and compiler warnings.
2010-09-10 - (djm) [authfd.c authfile.c bufec.c buffer.h configure.ac kex.h kexecdh.c]Damien Miller
[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 - djm@cvs.openbsd.org 2010/09/09 10:45:45Damien Miller
[kex.c kex.h kexecdh.c key.c key.h monitor.c ssh-ecdsa.c] ECDH/ECDSA compliance fix: these methods vary the hash function they use (SHA256/384/512) depending on the length of the curve in use. The previous code incorrectly used SHA256 in all cases. This fix will cause authentication failure when using 384 or 521-bit curve keys if one peer hasn't been upgraded and the other has. (256-bit curve keys work ok). In particular you may need to specify HostkeyAlgorithms when connecting to a server that has not been upgraded from an upgraded client. ok naddy@
2010-08-31 - djm@cvs.openbsd.org 2010/08/31 11:54:45Damien Miller
[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@
2010-02-27 - OpenBSD CVS SyncDamien Miller
- 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@
2010-01-08 - andreas@cvs.openbsd.org 2009/10/24 11:13:54Darren Tucker
[sshconnect2.c kex.h kex.c] Let the client detect if the server supports roaming by looking for the resume@appgate.com kex algorithm. ok markus@
2009-06-21 - andreas@cvs.openbsd.org 2009/05/27 06:36:07Darren Tucker
[packet.h packet.c] Add packet_put_int64() and packet_get_int64(), part of a larger change from Martin Forssen.
2007-06-11 - pvalchev@cvs.openbsd.org 2007/06/07 19:37:34Damien Miller
[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@
2007-06-05 - djm@cvs.openbsd.org 2007/06/05 06:52:37Darren Tucker
[kex.c monitor_wrap.c packet.c mac.h kex.h mac.c] Preserve MAC ctx between packets, saving 2xhash calls per-packet. Yields around a 12-16% end-to-end speedup for arcfour256/hmac-md5 patch from markus@ tested dtucker@ and myself, ok markus@ and me (I'm committing at his request)
2006-08-05 - deraadt@cvs.openbsd.org 2006/08/03 03:34:42Damien Miller
[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c] [auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c] [auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c] [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ] [auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c] [buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c] [cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c] [compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c] [groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c] [kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c] [key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c] [monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c] [monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c] [readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h] [serverloop.c session.c session.h sftp-client.c sftp-common.c] [sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c] [ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c] [ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c] [sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c] [uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h] [loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h] almost entirely get rid of the culture of ".h files that include .h files" ok djm, sort of ok stevesk makes the pain stop in one easy step NB. portable commit contains everything *except* removing includes.h, as that will take a fair bit more work as we move headers that are required for portability workarounds to defines.h. (also, this step wasn't "easy")
2006-07-24 - stevesk@cvs.openbsd.org 2006/07/23 01:11:05Damien Miller
[auth.h dispatch.c kex.h sftp-client.c] #include <signal.h> for sig_atomic_t; need this prior to <sys/param.h> move
2006-04-23 - (djm) [auth.h dispatch.h kex.h] sprinkle in signal.h to getDamien Miller
sig_atomic_t
2006-04-23 - djm@cvs.openbsd.org 2006/04/20 09:27:09Damien Miller
[auth.h clientloop.c dispatch.c dispatch.h kex.h] replace the last non-sig_atomic_t flag used in a signal handler with a sig_atomic_t, unfortunately with some knock-on effects in other (non- signal) contexts in which it is used; ok markus@
2006-03-26 - djm@cvs.openbsd.org 2006/03/25 22:22:43Damien Miller
[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 - deraadt@cvs.openbsd.org 2006/03/19 18:53:12Damien Miller
[kex.h myproposal.h] spacing
2006-03-15 - djm@cvs.openbsd.org 2006/03/07 09:07:40Damien Miller
[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
2005-11-05 - djm@cvs.openbsd.org 2005/11/04 05:15:59Damien Miller
[kex.c kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c] remove hardcoded hash lengths in key exchange code, allowing implementation of KEX methods with different hashes (e.g. SHA-256); ok markus@ dtucker@ stevesk@
2005-07-26 - markus@cvs.openbsd.org 2005/07/25 11:59:40Damien Miller
[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@
2005-06-17 - djm@cvs.openbsd.org 2005/06/17 02:44:33Damien Miller
[auth-rsa.c auth.c auth1.c auth2-chall.c auth2-gss.c authfd.c authfile.c] [bufaux.c canohost.c channels.c cipher.c clientloop.c dns.c gss-serv.c] [kex.c kex.h key.c mac.c match.c misc.c packet.c packet.h scp.c] [servconf.c session.c session.h sftp-client.c sftp-server.c sftp.c] [ssh-keyscan.c ssh-rsa.c sshconnect.c sshconnect1.c sshconnect2.c sshd.c] make this -Wsign-compare clean; ok avsm@ markus@ NB. auth1.c changes not committed yet (conflicts with uncommitted sync) NB2. more work may be needed to make portable Wsign-compare clean
2004-06-15 - djm@cvs.openbsd.org 2004/06/13 12:53:24Damien Miller
[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@
2004-05-24 - markus@cvs.openbsd.org 2004/05/21 08:43:03Darren Tucker
[kex.h moduli.c tildexpand.c] add prototypes for -Wall; ok djm
2003-02-24 - markus@cvs.openbsd.org 2003/02/16 17:09:57Damien Miller
[kex.c kexdh.c kexgex.c kex.h sshconnect2.c sshd.c ssh-keyscan.c] split kex into client and server code, no need to link server code into the client; ok provos@
2002-09-12 - markus@cvs.openbsd.org 2002/09/09 14:54:15Damien Miller
[channels.c kex.h key.c monitor.c monitor_wrap.c radix.c uuencode.c] signed vs unsigned from -pedantic; ok henning@
2002-06-06 - markus@cvs.openbsd.org 2002/05/16 22:02:50Ben Lindstrom
[cipher.c kex.h mac.c] fix warnings (openssl 0.9.7 requires const)
2002-03-22 - provos@cvs.openbsd.org 2002/03/18 17:50:31Ben Lindstrom
[auth-bsdauth.c auth-options.c auth-rh-rsa.c auth-rsa.c auth-skey.c auth.h auth1.c auth2-chall.c auth2.c kex.c kex.h kexdh.c kexgex.c servconf.c session.h servconf.h serverloop.c session.c sshd.c] integrate privilege separated openssh; its turned off by default for now. work done by me and markus@ applied, but outside of ensure that smaller code bits migrated with their owners.. no work was tried to 'fix' it to work. =) Later project!
2002-03-13Stupid djm commits experimental code to head instead of branchDamien Miller
revert
2002-03-13Import of Niels Provos' 20020312 ssh-complete.diffDamien Miller
PAM, Cygwin and OSF SIA will not work for sure
2002-02-19 - markus@cvs.openbsd.org 2002/02/14 23:41:01Damien Miller
[authfile.c cipher.c cipher.h kex.c kex.h packet.c] hide some more implementation details of cipher.[ch] and prepares for move to EVP, ok deraadt@
2002-01-22 - markus@cvs.openbsd.org 2001/12/28 15:06:00Damien Miller
[auth2.c auth2-chall.c channels.c channels.h clientloop.c dispatch.c dispatch.h kex.c kex.h serverloop.c ssh.c sshconnect2.c] remove plen from the dispatch fn. it's no longer used.
2001-12-21 - djm@cvs.openbsd.org 2001/12/20 22:50:24Damien Miller
[auth2.c auth2-chall.c channels.c channels.h clientloop.c dispatch.c] [dispatch.h kex.c kex.h packet.c packet.h serverloop.c ssh.c] [sshconnect2.c] Conformance fix: we should send failing packet sequence number when responding with a SSH_MSG_UNIMPLEMENTED message. Spotted by yakk@yakk.dot.net; ok markus@
2001-07-04 - markus@cvs.openbsd.org 2001/06/26 17:27:25Ben Lindstrom
[authfd.h authfile.h auth.h auth-options.h bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h compat.h compress.h crc32.h deattack.h dh.h dispatch.h groupaccess.c groupaccess.h hostfile.h kex.h key.h log.c log.h mac.h misc.c misc.h mpaux.h packet.h radix.h readconf.h readpass.h rsa.h servconf.h serverloop.h session.h sftp-common.c sftp-common.h sftp-glob.h sftp-int.h sshconnect.h ssh-dss.h sshlogin.h sshpty.h ssh-rsa.h sshtty.h tildexpand.h uidswap.h uuencode.h xmalloc.h] remove comments from .h, since they are cut&paste from the .c files and out of sync
2001-07-04 - itojun@cvs.openbsd.org 2001/06/26 06:32:58Ben Lindstrom
[atomicio.h authfd.h authfile.h auth.h auth-options.h bufaux.h buffer.h canohost.h channels.h cipher.h clientloop.h compat.h compress.h crc32.h deattack.h dh.h dispatch.h groupaccess.h hostfile.h kex.h key.h log.h mac.h match.h misc.h mpaux.h packet.h radix.h readconf.h readpass.h rsa.h] prototype pedant. not very creative... - () -> (void) - no variable names
2001-07-04 - markus@cvs.openbsd.org 2001/06/25 08:25:41Ben Lindstrom
[channels.c channels.h cipher.c clientloop.c compat.c compat.h hostfile.c kex.c kex.h key.c key.h nchan.c packet.c serverloop.c session.c session.h sftp-server.c ssh-add.c ssh-agent.c uuencode.h] update copyright for 2001
2001-06-25 - markus@cvs.openbsd.org 2001/06/23 02:34:33Ben Lindstrom
[kexdh.c kexgex.c kex.h pathnames.h readconf.c servconf.h ssh.1 sshconnect1.c sshconnect2.c sshconnect.c sshconnect.h sshd.8] get rid of known_hosts2, use it for hostkey lookup, but do not modify.
2001-04-04 - markus@cvs.openbsd.org 2001/04/04 20:25:38Ben Lindstrom
[channels.c channels.h clientloop.c kex.c kex.h serverloop.c sshconnect2.c sshd.c] more robust rekeying don't send channel data after rekeying is started.
2001-04-04 - markus@cvs.openbsd.org 2001/04/04 14:34:58Ben Lindstrom
[clientloop.c kex.c kex.h serverloop.c sshconnect2.c sshd.c] enable server side rekeying + some rekey related clientup. todo: we should not send any non-KEX messages after we send KEXINIT
2001-04-04 - markus@cvs.openbsd.org 2001/04/04 09:48:35Ben Lindstrom
[kex.c kex.h kexdh.c kexgex.c packet.c sshconnect2.c sshd.c] don't sent multiple kexinit-requests. send newkeys, block while waiting for newkeys. fix comments.
2001-04-04 - markus@cvs.openbsd.org 2001/04/03 23:32:12Ben Lindstrom
[kex.c kex.h packet.c sshconnect2.c sshd.c] undo parts of recent my changes: main part of keyexchange does not need dispatch-callbacks, since application data is delayed until the keyexchange completes (if i understand the drafts correctly). add some infrastructure for re-keying.
2001-04-04 - markus@cvs.openbsd.org 2001/04/03 19:53:29Ben Lindstrom
[dh.c dh.h kex.c kex.h sshconnect2.c sshd.c] move kex to kex*.c, used dispatch_set() callbacks for kex. should make rekeying easier.
2001-03-30 - OpenBSD CVS SyncDamien Miller
- markus@cvs.openbsd.org 2001/03/29 21:17:40 [dh.c dh.h kex.c kex.h] prepare for rekeying: move DH code to dh.c
2001-03-30 - (djm) OpenBSD CVS SyncDamien Miller
- provos@cvs.openbsd.org 2001/03/28 21:59:41 [kex.c kex.h sshconnect2.c sshd.c] forgot to include min and max params in hash, okay markus@