Commit graph

38 commits

Author SHA1 Message Date
Richard Levitte
c8223538cb Check that the subject name in a proxy cert complies to RFC 3820
The subject name MUST be the same as the issuer name, with a single CN
entry added.

RT#1852

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Stephen Henson <steve@openssl.org>
2016-06-20 21:34:37 +02:00
Viktor Dukhovni
f75b34c8c8 When strict SCT fails record verification failure
Since with SSL_VERIFY_NONE, the connection may continue and the
session may even be cached, we should save some evidence that the
chain was not sufficiently verified and would have been rejected
with SSL_VERIFY_PEER.  To that end when a CT callback returs failure
we set the verify result to X509_V_ERR_NO_VALID_SCTS.

Note: We only run the CT callback in the first place if the verify
result is still X509_V_OK prior to start of the callback.

RT #4502

Reviewed-by: Tim Hudson <tjh@openssl.org>
2016-05-19 00:25:42 -04:00
Viktor Dukhovni
f3e235ed6f Ensure verify error is set when X509_verify_cert() fails
Set ctx->error = X509_V_ERR_OUT_OF_MEM when verificaiton cannot
continue due to malloc failure.  Also, when X509_verify_cert()
returns <= 0 make sure that the verification status does not remain
X509_V_OK, as a last resort set it it to X509_V_ERR_UNSPECIFIED,
just in case some code path returns an error without setting an
appropriate value of ctx->error.

Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-18 15:16:37 -04:00
Rich Salz
b1322259d9 Copyright consolidation 09/10
Reviewed-by: Richard Levitte <levitte@openssl.org>
2016-05-17 14:53:16 -04:00
Viktor Dukhovni
fbb82a60dc Move peer chain security checks into x509_vfy.c
A new X509_VERIFY_PARAM_set_auth_level() function sets the
authentication security level.  For verification of SSL peers, this
is automatically set from the SSL security level.  Otherwise, for
now, the authentication security level remains at (effectively) 0
by default.

The new "-auth_level" verify(1) option is available in all the
command-line tools that support the standard verify(1) options.

New verify(1) tests added to check enforcement of chain signature
and public key security levels.  Also added new tests of enforcement
of the verify_depth limit.

Updated documentation.

Reviewed-by: Dr. Stephen Henson <steve@openssl.org>
2016-04-03 11:35:35 -04:00
Viktor Dukhovni
d33def6624 Deprecate the -issuer_checks debugging option
This was a developer debugging feature and was never a useful public
interface.

Added all missing X509 error codes to the verify(1) manpage, but
many still need a description beyond the associated text string.

Sorted the errors in x509_txt.c by error number.

Reviewed-by: Stephen Henson <steve@openssl.org>
2016-02-10 12:34:06 -05:00
Viktor Dukhovni
c0a445a9f2 Suppress DANE TLSA reflection when verification fails
As documented both SSL_get0_dane_authority() and SSL_get0_dane_tlsa()
are expected to return a negative match depth and nothing else when
verification fails.  However, this only happened when verification
failed during chain construction.  Errors in verification of the
constructed chain did not have the intended effect on these functions.

This commit updates the functions to check for verify_result ==
X509_V_OK, and no longer erases any accumulated match information
when chain construction fails.  Sophisticated developers can, with
care, use SSL_set_verify_result(ssl, X509_V_OK) to "peek" at TLSA
info even when verification fail.  They must of course first check
and save the real error, and restore the original error as quickly
as possible.  Hiding by default seems to be the safer interface.

Introduced X509_V_ERR_DANE_NO_MATCH code to signal failure to find
matching TLSA records.  Previously reported via X509_V_ERR_CERT_UNTRUSTED.

This also changes the "-brief" output from s_client to include
verification results and TLSA match information.

Mentioned session resumption in code example in SSL_CTX_dane_enable(3).
Also mentioned that depths returned are relative to the verified chain
which is now available via SSL_get0_verified_chain(3).

Added a few more test-cases to danetest, that exercise the new
code.

Resolved thread safety issue in use of static buffer in
X509_verify_cert_error_string().

Fixed long-stating issue in apps/s_cb.c which always sets verify_error
to either X509_V_OK or "chain to long", code elsewhere (e.g.
s_time.c), seems to expect the actual error.  [ The new chain
construction code is expected to correctly generate "chain
too long" errors, so at some point we need to drop the
work-arounds, once SSL_set_verify_depth() is also fixed to
propagate the depth to X509_STORE_CTX reliably. ]

Reviewed-by: Rich Salz <rsalz@openssl.org>
2016-02-08 14:46:09 -05:00
Rich Salz
349807608f Remove /* foo.c */ comments
This was done by the following
        find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
        print unless $. == 1 && m@/\* .*\.[ch] \*/@;
        close ARGV if eof; # Close file to reset $.

And then some hand-editing of other files.

Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
2016-01-26 16:40:43 -05:00
Richard Levitte
b39fc56061 Identify and move common internal libcrypto header files
There are header files in crypto/ that are used by a number of crypto/
submodules.  Move those to crypto/include/internal and adapt the
affected source code and Makefiles.

The header files that got moved are:

crypto/cryptolib.h
crypto/md32_common.h

Reviewed-by: Rich Salz <rsalz@openssl.org>
2015-05-14 17:21:40 +02:00
Matt Caswell
0f113f3ee4 Run util/openssl-format-source -v -c .
Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:20:09 +00:00
Dr. Stephen Henson
3bf15e2974 Integrate host, email and IP address checks into X509_verify.
Add new verify options to set checks.

Remove previous -check* commands from s_client and s_server.
2012-12-05 18:35:20 +00:00
Dr. Stephen Henson
3ad344a517 add suite B chain validation flags and associated verify errors 2012-08-03 13:51:43 +00:00
Dr. Stephen Henson
2b3936e882 avoid verification loops in trusted store when path building 2010-12-25 20:45:59 +00:00
Dr. Stephen Henson
4b96839f06 Add support for CRLs partitioned by reason code.
Tidy CRL scoring system.

Add new CRL path validation error.
2008-08-29 11:37:21 +00:00
Dr. Stephen Henson
e9746e03ee Initial support for name constraints certificate extension.
TODO: robustness checking on name forms.
2008-08-08 15:35:29 +00:00
Andy Polyakov
3005764c18 Typo in x509_txt.c.
Submitted by: Martin.Kraemer@Fujitsu-Siemens.com
2007-05-19 18:03:21 +00:00
Ben Laurie
96ea4ae91c Add RFC 3779 support. 2006-11-27 14:18:05 +00:00
Dr. Stephen Henson
bc7535bc7f Support for AKID in CRLs and partial support for IDP. Overhaul of CRL
handling to support this.
2006-09-14 17:25:02 +00:00
Richard Levitte
d9bfe4f97c Added restrictions on the use of proxy certificates, as they may pose
a security threat on unexpecting applications.  Document and test.
2005-04-09 16:07:12 +00:00
Richard Levitte
6951c23afd Add functionality needed to process proxy certificates. 2004-12-28 00:21:35 +00:00
Richard Levitte
30b415b076 Make an explicit check during certificate validation to see that the
CA setting in each certificate on the chain is correct.  As a side-
effect always do the following basic checks on extensions, not just
when there's an associated purpose to the check:
- if there is an unhandled critical extension (unless the user has
  chosen to ignore this fault)
- if the path length has been exceeded (if one is set at all)
- that certain extensions fit the associated purpose (if one has been
  given)
2004-11-29 11:28:08 +00:00
Dr. Stephen Henson
5d7c222db8 New X509_VERIFY_PARAM structure and associated functionality.
This tidies up verify parameters and adds support for integrated policy
checking.

Add support for policy related command line options. Currently only in smime
application.

WARNING: experimental code subject to change.
2004-09-06 18:43:01 +00:00
Dr. Stephen Henson
bc50157010 Various X509 fixes. Disable broken certificate workarounds
when X509_V_FLAG_X509_STRICT is set. Check for CRLSign in
CRL issuer certificates. Reject CRLs with unhandled (any)
critical extensions.
2004-03-05 17:16:35 +00:00
Richard Levitte
d420ac2c7d Use BUF_strlcpy() instead of strcpy().
Use BUF_strlcat() instead of strcat().
Use BIO_snprintf() instead of sprintf().
In some cases, keep better track of buffer lengths.
This is part of a large change submitted by Markus Friedl <markus@openbsd.org>
2003-12-27 14:40:17 +00:00
Dr. Stephen Henson
f1558bb424 Reject certificates with unhandled critical extensions. 2001-10-21 02:09:15 +00:00
Lutz Jänicke
e1c279b63d Small documentation fixes (Howard Lum <howard@pumpkin.canada.sun.com>) 2001-10-08 08:37:24 +00:00
Dr. Stephen Henson
b545dc6775 Initial CRL based revocation checking. 2001-05-07 22:52:50 +00:00
Dr. Stephen Henson
2f043896d1 *BIG* verify code reorganisation.
The old code was painfully primitive and couldn't handle
distinct certificates using the same subject name.

The new code performs several tests on a candidate issuer
certificate based on certificate extensions.

It also adds several callbacks to X509_VERIFY_CTX so its
behaviour can be customised.

Unfortunately some hackery was needed to persuade X509_STORE
to tolerate this. This should go away when X509_STORE is
replaced, sometime...

This must have broken something though :-(
2000-09-05 17:53:58 +00:00
Dr. Stephen Henson
51630a3706 Add trust setting support to the verify code. It now checks the
trust settings of the root CA.

After a few fixes it seems to work OK.

Still need to add support to SSL and S/MIME code though.
1999-11-27 19:43:10 +00:00
Dr. Stephen Henson
1126239111 Initial chain verify code: not tested probably not working
at present. However nothing enables it yet so this doesn't
matter :-)
1999-11-24 01:31:49 +00:00
Andy Polyakov
17f389bbbf Initial support for MacOS.
This will soon be complemented with MacOS specific source code files and
INSTALL.MacOS.

I (Andy) have decided to get rid of a number of #include <sys/types.h>.
I've verified it's ok (both by examining /usr/include/*.h and compiling)
on a number of Unix platforms. Unfortunately I don't have Windows box
to verify this on. I really appreciate if somebody could try to compile
it and contact me a.s.a.p. in case a problem occurs.

Submitted by: Roy Wood <roy@centricsystems.ca>
Reviewed by: Andy Polyakov <appro@fy.chalmers.se>
1999-09-11 17:54:18 +00:00
Bodo Möller
ec577822f9 Change #include filenames from <foo.h> to <openssl.h>.
Submitted by:
Reviewed by:
PR:
1999-04-23 22:13:45 +00:00
Ulf Möller
6b691a5c85 Change functions to ANSI C. 1999-04-19 21:31:43 +00:00
Ben Laurie
e778802f53 Massive constification. 1999-04-17 21:25:43 +00:00
Ralf S. Engelschall
268c2102e3 Make sure a corresponding plain text error message exists for the
X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
verify callback function determined that a certificate was revoked.
1999-04-12 09:59:05 +00:00
Ben Laurie
f33fbc2e1e More pissing about to get pem.h to behave properly. 1999-01-30 14:05:52 +00:00
Ralf S. Engelschall
58964a4922 Import of old SSLeay release: SSLeay 0.9.0b 1998-12-21 10:56:39 +00:00
Ralf S. Engelschall
d02b48c63a Import of old SSLeay release: SSLeay 0.8.1b 1998-12-21 10:52:47 +00:00