[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@
- 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@
[pathnames.h readconf.c readconf.h scp.1 sftp.1 ssh-add.1 ssh-add.c]
[ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh.1 ssh.c ssh_config.5]
replace our obsolete smartcard code with PKCS#11.
ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-11/v2-20/pkcs-11v2-20.pdf
ssh(1) and ssh-keygen(1) use dlopen(3) directly to talk to a PKCS#11
provider (shared library) while ssh-agent(1) delegates PKCS#11 to
a forked a ssh-pkcs11-helper process.
PKCS#11 is currently a compile time option.
feedback and ok djm@; inspired by patches from Alon Bar-Lev
`
[ssh-agent.c]
fix a race condition in ssh-agent that could result in a wedged or
spinning agent: don't read off the end of the allocated fd_sets, and
don't issue blocking read/write on agent sockets - just fall back to
select() on retriable read/write errors. bz#1633 reported and tested
by "noodle10000 AT googlemail.com"; ok dtucker@ markus@
[ssh-agent.c]
My previous commit didn't fix the problem at all, so stick at my first
version of the fix presented to dtucker.
Issue notified by Matthias Barkhoff (matthias dot barkhoff at gmx dot de).
ok dtucker
[ssh-agent.c]
Fixed a possible out-of-bounds memory access if the environment variable
SHELL is shorter than 3 characters.
with input by and ok dtucker
[packet.c scp.c serverloop.c sftp-client.c ssh-agent.c ssh-keyscan.c]
[sshd.c] Explicitly handle EWOULDBLOCK wherever we handle EAGAIN, on
some platforms (HP nonstop) it is a distinct errno;
bz#1467 reported by sconeu AT yahoo.com; ok dtucker@
openbsd-compat/openssl-compat.{c,h}] Bug #1437 Move the OpenSSL compat
header to after OpenSSL headers, since some versions of OpenSSL have
SSLeay_add_all_algorithms as a macro already.
[ssh-agent.c]
Remove the signal handler that checks if the agent's parent process
has gone away, instead check when the select loop returns. Record when
the next key will expire when scanning for expired keys. Set the select
timeout to whichever of these two things happens next. With djm@, with &
ok deraadt@ markus@
[ssh-agent.c]
Remove expired keys periodically so they don't remain in memory when
the agent is entirely idle, as noted by David R. Piegdon. This is the
simple fix, a more efficient one will be done later. With markus,
deraadt, with & ok djm.
[ssh-agent.c]
always use a format string, even when printing a constant
- djm@cvs.openbsd.org 2006/06/13 02:17:07
[ssh-agent.c]
revert; i am on drugs. spotted by alexander AT beard.se
[authfd.c bufaux.c deattack.c gss-serv.c mac.c misc.c misc.h]
[monitor_wrap.c msg.c packet.c sftp-client.c sftp-server.c ssh-agent.c]
replace {GET,PUT}_XXBIT macros with functionally similar functions,
silencing a heap of lint warnings. also allows them to use
__bounded__ checking which can't be applied to macros; requested
by and feedback from deraadt@
[buffer.c channels.c deattack.c misc.c scp.c session.c sftp-client.c]
[sftp-server.c ssh-agent.c ssh-rsa.c xmalloc.c xmalloc.h auth-pam.c]
[uidswap.c]
change OpenSSH's xrealloc() function from being xrealloc(p, new_size)
to xrealloc(p, new_nmemb, new_itemsize).
realloc is particularly prone to integer overflows because it is
almost always allocating "n * size" bytes, so this is a far safer
API; ok deraadt@
[auth-bsdauth.c auth-skey.c auth.c auth2-chall.c channels.c]
[clientloop.c deattack.c gss-genr.c kex.c key.c misc.c moduli.c]
[monitor.c monitor_wrap.c packet.c scard.c sftp-server.c ssh-agent.c]
[ssh-keyscan.c ssh.c sshconnect.c sshconnect2.c sshd.c uuencode.c]
[xmalloc.c xmalloc.h]
introduce xcalloc() and xasprintf() failure-checked allocations
functions and use them throughout openssh
xcalloc is particularly important because malloc(nmemb * size) is a
dangerous idiom (subject to integer overflow) and it is time for it
to die
feedback and ok deraadt@
[channels.c monitor.c session.c session.h ssh-agent.c ssh-keygen.c]
[ssh-rsa.c ssh.c sshlogin.c]
annoying spacing fixes getting in the way of real diffs
[clientloop.c packet.c serverloop.c session.c ssh-agent.c ssh-keygen.c]
[ssh.c sshconnect.c sshconnect1.c sshd.c]
no need to escape single quotes in comments, no binary change
Damien Miller
Darren Tucker