Commit Graph

9 Commits

Author SHA1 Message Date
markus@openbsd.org 57d10cbe86 upstream commit
adapt kex to sshbuf and struct ssh; ok djm@
2015-01-20 09:19:39 +11:00
Damien Miller 72ef7c148c support --without-openssl at configure time
Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.

Considered highly experimental for now.
2015-01-15 02:28:36 +11:00
Damien Miller b3051d01e5 - djm@cvs.openbsd.org 2014/01/09 23:20:00
[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@
2014-01-10 10:58:53 +11:00
Damien Miller ea11119eee - djm@cvs.openbsd.org 2013/04/19 01:06:50
[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@
2013-04-23 19:24:32 +10:00
Damien Miller d5f62bf280 - djm@cvs.openbsd.org 2010/09/22 05:01:30
[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@
2010-09-24 22:11:14 +10:00
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 041ab7c1e7 - djm@cvs.openbsd.org 2010/09/09 10:45:45
[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@
2010-09-10 11:23:34 +10:00
Damien Miller c79ff0770e - (djm) [bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] include
includes.h
2010-08-31 22:50:48 +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