Commit Graph

127 Commits

Author SHA1 Message Date
djm@openbsd.org dce19bf6e4 upstream commit
make private key loading functions consistently handle NULL
 key pointer arguments; ok markus@

Upstream-ID: 92038726ef4a338169c35dacc9c5a07fcc7fa761
2016-04-13 10:44:06 +10:00
mmcc@openbsd.org 52d7078421 upstream commit
Remove NULL-checks before sshbuf_free().

ok djm@

Upstream-ID: 5ebed00ed5f9f03b119a345085e8774565466917
2015-12-18 14:50:48 +11:00
mmcc@openbsd.org 89540b6de0 upstream commit
Remove NULL-checks before sshkey_free().

ok djm@

Upstream-ID: 3e35afe8a25e021216696b5d6cde7f5d2e5e3f52
2015-12-18 14:49:32 +11:00
mmcc@openbsd.org d59ce08811 upstream commit
Remove NULL-checks before free().

ok dtucker@

Upstream-ID: e3d3cb1ce900179906af36517b5eea0fb15e6ef8
2015-12-11 13:23:14 +11:00
tim@openbsd.org 3c019a936b upstream commit
- Fix error message: passphrase needs to be at least 5
 characters, not 4. - Remove unused function argument. - Remove two
 unnecessary variables.

OK djm@

Upstream-ID: 13010c05bfa8b523da1c0dc19e81dd180662bc30
2015-09-16 17:52:09 +10:00
markus@openbsd.org 16db0a7ee9 upstream commit
re-enable ed25519-certs if compiled w/o openssl; ok djm

Upstream-ID: e10c90808b001fd2c7a93778418e9b318f5c4c49
2015-07-15 15:37:16 +10:00
djm@openbsd.org c28fc62d78 upstream commit
delete support for legacy v00 certificates; "sure"
 markus@ dtucker@

Upstream-ID: b5b9bb5f9202d09e88f912989d74928601b6636f
2015-07-15 15:35:09 +10:00
djm@openbsd.org 6b0d576bb8 upstream commit
s/recommended/required/ that private keys be og-r this
 wording change was made a while ago but got accidentally reverted
2015-04-29 18:14:21 +10:00
djm@openbsd.org 9a47ab8003 upstream commit
fd leak for !ssh1 case; found by unittests; ok markus@
2015-04-01 10:00:46 +11:00
djm@openbsd.org 725fd22a8c upstream commit
KRL support doesn't need OpenSSL anymore, remove #ifdefs
 from around call
2015-03-23 17:08:39 +11:00
djm@openbsd.org 5248429b5e upstream commit
add an XXX to remind me to improve sshkey_load_public
2015-02-24 03:59:09 +11:00
deraadt@openbsd.org 087266ec33 upstream commit
Reduce use of <sys/param.h> and transition to <limits.h>
 throughout. ok djm markus
2015-01-26 23:58:53 +11:00
Damien Miller b03ebe2c22 more --without-openssl
fix some regressions caused by upstream merges

enable KRLs now that they no longer require BIGNUMs
2015-01-15 03:08:58 +11:00
djm@openbsd.org 1195f4cb07 upstream commit
deprecate key_load_private_pem() and
 sshkey_load_private_pem() interfaces. Refactor the generic key loading API to
 not require pathnames to be specified (they weren't really used).

Fixes a few other things en passant:

Makes ed25519 keys work for hostbased authentication (ssh-keysign
previously used the PEM-only routines).

Fixes key comment regression bz#2306: key pathnames were being lost as
comment fields.

ok markus@
2015-01-09 00:17:12 +11:00
djm@openbsd.org 5e39a49930 upstream commit
add RevokedHostKeys option for the client

Allow textfile or KRL-based revocation of hostkeys.
2014-12-05 09:29:47 +11:00
Damien Miller 8668706d0f - djm@cvs.openbsd.org 2014/06/24 01:13:21
[Makefile.in auth-bsdauth.c auth-chall.c auth-options.c auth-rsa.c
     [auth2-none.c auth2-pubkey.c authfile.c authfile.h cipher-3des1.c
     [cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h
     [digest-libc.c digest-openssl.c digest.h dns.c entropy.c hmac.h
     [hostfile.c key.c key.h krl.c monitor.c packet.c rsa.c rsa.h
     [ssh-add.c ssh-agent.c ssh-dss.c ssh-ecdsa.c ssh-ed25519.c
     [ssh-keygen.c ssh-pkcs11-client.c ssh-pkcs11-helper.c ssh-pkcs11.c
     [ssh-rsa.c sshbuf-misc.c sshbuf.h sshconnect.c sshconnect1.c
     [sshconnect2.c sshd.c sshkey.c sshkey.h
     [openbsd-compat/openssl-compat.c openbsd-compat/openssl-compat.h]
     New key API: refactor key-related functions to be more library-like,
     existing API is offered as a set of wrappers.

     with and ok markus@

     Thanks also to Ben Hawkes, David Tomaschik, Ivan Fratric, Matthew
     Dempsky and Ron Bowes for a detailed review a few months ago.

     NB. This commit also removes portable OpenSSH support for OpenSSL
     <0.9.8e.
2014-07-02 15:28:02 +10:00
Damien Miller 1f0311c7c7 - markus@cvs.openbsd.org 2014/04/29 18:01:49
[auth.c authfd.c authfile.c bufaux.c cipher.c cipher.h hostfile.c]
     [kex.c key.c mac.c monitor.c monitor_wrap.c myproposal.h packet.c]
     [roaming_client.c ssh-agent.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
     [ssh-pkcs11.h ssh.c sshconnect.c sshconnect2.c sshd.c]
     make compiling against OpenSSL optional (make OPENSSL=no);
     reduces algorithms to curve25519, aes-ctr, chacha, ed25519;
     allows us to explore further options; with and ok djm
2014-05-15 14:24:09 +10:00
Damien Miller 633de33b19 - djm@cvs.openbsd.org 2014/04/28 03:09:18
[authfile.c bufaux.c buffer.h channels.c krl.c mux.c packet.c packet.h]
     [ssh-keygen.c]
     buffer_get_string_ptr's return should be const to remind
     callers that futzing with it will futz with the actual buffer
     contents
2014-05-15 13:48:26 +10:00
Damien Miller 3819519288 - djm@cvs.openbsd.org 2014/03/12 04:51:12
[authfile.c]
     correct test that kdf name is not "none" or "bcrypt"
2014-04-20 13:00:28 +10:00
Damien Miller a5103f413b - djm@cvs.openbsd.org 2014/02/02 03:44:32
[auth1.c auth2-chall.c auth2-passwd.c authfile.c bufaux.c bufbn.c]
     [buffer.c cipher-3des1.c cipher.c clientloop.c gss-serv.c kex.c]
     [kexdhc.c kexdhs.c kexecdhc.c kexgexc.c kexecdhs.c kexgexs.c key.c]
     [monitor.c monitor_wrap.c packet.c readpass.c rsa.c serverloop.c]
     [ssh-add.c ssh-agent.c ssh-dss.c ssh-ecdsa.c ssh-ed25519.c]
     [ssh-keygen.c ssh-rsa.c sshconnect.c sshconnect1.c sshconnect2.c]
     [sshd.c]
     convert memset of potentially-private data to explicit_bzero()
2014-02-04 11:20:14 +11:00
Damien Miller 1d2c456426 - tedu@cvs.openbsd.org 2014/01/31 16:39:19
[auth2-chall.c authfd.c authfile.c bufaux.c bufec.c canohost.c]
     [channels.c cipher-chachapoly.c clientloop.c configure.ac hostfile.c]
     [kexc25519.c krl.c monitor.c sandbox-systrace.c session.c]
     [sftp-client.c ssh-keygen.c ssh.c sshconnect2.c sshd.c sshlogin.c]
     [openbsd-compat/explicit_bzero.c openbsd-compat/openbsd-compat.h]
     replace most bzero with explicit_bzero, except a few that cna be memset
     ok djm dtucker
2014-02-04 11:18:20 +11:00
Damien Miller b9a95490da - djm@cvs.openbsd.org 2013/12/29 04:35:50
[authfile.c]
     don't refuse to load Ed25519 certificates
2013-12-29 17:50:15 +11:00
Damien Miller 4260828a29 - [authfile.c] Conditionalise inclusion of util.h 2013-12-07 11:38:03 +11:00
Damien Miller 5be9d9e3cb - markus@cvs.openbsd.org 2013/12/06 13:39:49
[authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c]
     [servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c]
     [ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c]
     [sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c]
     [fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c]
     support ed25519 keys (hostkeys and user identities) using the public
     domain ed25519 reference code from SUPERCOP, see
     http://ed25519.cr.yp.to/software.html
     feedback, help & ok djm@
2013-12-07 11:24:01 +11:00
Damien Miller bcd00abd84 - markus@cvs.openbsd.org 2013/12/06 13:34:54
[authfile.c authfile.h cipher.c cipher.h key.c packet.c ssh-agent.c]
     [ssh-keygen.c PROTOCOL.key] new private key format, bcrypt as KDF by
     default; details in PROTOCOL.key; feedback and lots help from djm;
     ok djm@
2013-12-07 10:41:55 +11:00
Damien Miller 0fde8acdad - djm@cvs.openbsd.org 2013/11/21 00:45:44
[Makefile.in PROTOCOL PROTOCOL.chacha20poly1305 authfile.c chacha.c]
     [chacha.h cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h]
     [dh.c myproposal.h packet.c poly1305.c poly1305.h servconf.c ssh.1]
     [ssh.c ssh_config.5 sshd_config.5] Add a new protocol 2 transport
     cipher "chacha20-poly1305@openssh.com" that combines Daniel
     Bernstein's ChaCha20 stream cipher and Poly1305 MAC to build an
     authenticated encryption mode.

     Inspired by and similar to Adam Langley's proposal for TLS:
     http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03
     but differs in layout used for the MAC calculation and the use of a
     second ChaCha20 instance to separately encrypt packet lengths.
     Details are in the PROTOCOL.chacha20poly1305 file.

     Feedback markus@, naddy@; manpage bits Loganden Velvindron @ AfriNIC
     ok markus@ naddy@
2013-11-21 14:12:23 +11:00
Darren Tucker a627d42e51 - djm@cvs.openbsd.org 2013/05/17 00:13:13
[xmalloc.h cipher.c sftp-glob.c ssh-keyscan.c ssh.c sftp-common.c
     ssh-ecdsa.c auth2-chall.c compat.c readconf.c kexgexs.c monitor.c
     gss-genr.c cipher-3des1.c kex.c monitor_wrap.c ssh-pkcs11-client.c
     auth-options.c rsa.c auth2-pubkey.c sftp.c hostfile.c auth2.c
     servconf.c auth.c authfile.c xmalloc.c uuencode.c sftp-client.c
     auth2-gss.c sftp-server.c bufaux.c mac.c session.c jpake.c kexgexc.c
     sshconnect.c auth-chall.c auth2-passwd.c sshconnect1.c buffer.c
     kexecdhs.c kexdhs.c ssh-rsa.c auth1.c ssh-pkcs11.c auth2-kbdint.c
     kexdhc.c sshd.c umac.c ssh-dss.c auth2-jpake.c bufbn.c clientloop.c
     monitor_mm.c scp.c roaming_client.c serverloop.c key.c auth-rsa.c
     ssh-pkcs11-helper.c ssh-keysign.c ssh-keygen.c match.c channels.c
     sshconnect2.c addrmatch.c mux.c canohost.c kexecdhc.c schnorr.c
     ssh-add.c misc.c auth2-hostbased.c ssh-agent.c bufec.c groupaccess.c
     dns.c packet.c readpass.c authfd.c moduli.c]
     bye, bye xfree(); ok markus@
2013-06-02 07:31:17 +10:00
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 1d75abfe23 - markus@cvs.openbsd.org 2013/01/08 18:49:04
[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@
2013-01-09 16:12:19 +11:00
Damien Miller af43a7ac2d - markus@cvs.openbsd.org 2012/12/11 22:31:18
[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@
2012-12-12 10:46:31 +11:00
Damien Miller 5d0077008f - markus@cvs.openbsd.org 2012/01/25 19:36:31
[authfile.c]
     memleak in key_load_file(); from Jan Klemkow
2012-02-11 08:19:02 +11:00
Damien Miller e7ac2bd42a - markus@cvs.openbsd.org 2011/06/14 22:49:18
[authfile.c]
     make sure key_parse_public/private_rsa1() no longer consumes its input
     buffer.  fixes ssh-add for passphrase-protected ssh1-keys;
     noted by naddy@; ok djm@
2011-06-20 14:23:25 +10:00
Damien Miller 04bb56ef10 - djm@cvs.openbsd.org 2011/05/23 07:24:57
[authfile.c]
     read in key comments for v.2 keys (though note that these are not
     passed over the agent protocol); bz#439, based on patch from binder
     AT arago.de; ok markus@
2011-05-29 21:42:08 +10:00
Damien Miller 9d276b8d68 - djm@cvs.openbsd.org 2011/05/13 00:05:36
[authfile.c]
     warn on unexpected key type in key_parse_private_type()
2011-05-15 08:51:43 +10:00
Damien Miller 3219824f2d - djm@cvs.openbsd.org 2011/05/10 05:46:46
[authfile.c]
     despam debug() logs by detecting that we are trying to load a private key
     in key_try_load_public() and returning early; ok markus@
2011-05-15 08:50:32 +10:00
Damien Miller 2ce12ef1ac - djm@cvs.openbsd.org 2011/05/04 21:15:29
[authfile.c authfile.h ssh-add.c]
     allow "ssh-add - < key"; feedback and ok markus@
2011-05-05 14:17:18 +10:00
Damien Miller a10abe9e4b s/recommended/required in warning:
"It is recommended that your private key files are NOT accessible by others."

since there is no way to skip this check; bz#1878
2011-04-12 15:39:35 +10:00
Damien Miller 03c0e533de - markus@cvs.openbsd.org 2010/11/29 18:57:04
[authfile.c]
     correctly load comment for encrypted rsa1 keys;
     report/fix Joachim Schipper; ok djm@
2010-12-01 12:03:39 +11:00
Damien Miller a232792783 - djm@cvs.openbsd.org 2010/11/21 10:57:07
[authfile.c]
     Refactor internals of private key loading and saving to work on memory
     buffers rather than directly on files. This will make a few things
     easier to do in the future; ok markus@
2010-12-01 12:01:21 +11:00
Damien Miller b472a90d4c - djm@cvs.openbsd.org 2010/10/28 11:22:09
[authfile.c key.c key.h ssh-keygen.c]
     fix a possible NULL deref on loading a corrupt ECDH key

     store ECDH group information in private keys files as "named groups"
     rather than as a set of explicit group parameters (by setting
     the OPENSSL_EC_NAMED_CURVE flag). This makes for shorter key files and
     retrieves the group's OpenSSL NID that we need for various things.
2010-11-05 10:19:49 +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 bf0423e550 - djm@cvs.openbsd.org 2010/09/08 03:54:36
[authfile.c]
     typo
2010-09-10 11:20:38 +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 5458c4dd13 - djm@cvs.openbsd.org 2010/08/04 05:49:22
[authfile.c]
     commited the wrong version of the hostbased certificate diff; this
     version replaces some strlc{py,at} verbosity with xasprintf() at
     the request of markus@
2010-08-05 13:05:15 +10:00
Damien Miller c158331f8c - djm@cvs.openbsd.org 2010/08/04 05:42:47
[auth.c auth2-hostbased.c authfile.c authfile.h ssh-keysign.8]
     [ssh-keysign.c ssh.c]
     enable certificates for hostbased authentication, from Iain Morgan;
     "looks ok" markus@
2010-08-05 13:04:50 +10:00
Damien Miller 1aed65eb27 - djm@cvs.openbsd.org 2010/03/04 10:36:03
[auth-rh-rsa.c auth-rsa.c auth.c auth.h auth2-hostbased.c auth2-pubkey.c]
     [authfile.c authfile.h hostfile.c hostfile.h servconf.c servconf.h]
     [ssh-keygen.c ssh.1 sshconnect.c sshd_config.5]
     Add a TrustedUserCAKeys option to sshd_config to specify CA keys that
     are trusted to authenticate users (in addition than doing it per-user
     in authorized_keys).

     Add a RevokedKeys option to sshd_config and a @revoked marker to
     known_hosts to allow keys to me revoked and banned for user or host
     authentication.

     feedback and ok markus@
2010-03-04 21:53:35 +11:00
Darren Tucker 69c01b1c4a - dtucker@cvs.openbsd.org 2010/01/12 00:16:47
[authfile.c]
     Fix bug introduced in r1.78 (incorrect brace location) that broke key auth.
     Patch from joachim joachimschipper nl.
2010-01-12 19:42:29 +11:00
Darren Tucker d4c86b1325 - dtucker@cvs.openbsd.org 2010/01/11 04:46:45
[authfile.c sshconnect2.c]
     Do not prompt for a passphrase if we fail to open a keyfile, and log the
     reason the open failed to debug.
     bz #1693, found by tj AT castaglia org, ok djm@
2010-01-12 19:41:22 +11:00
Darren Tucker df6578bb4d - (dtucker) [authfile.c] Fall back to 3DES for the encryption of private
keys when built with OpenSSL versions that don't do AES.
2009-11-07 16:03:14 +11:00
Darren Tucker e89ed1cfca - (dtucker) [authfile.c] Add OpenSSL compat header so this still builds with
older versions of OpenSSL.
2009-11-05 20:43:16 +11:00