GnuTLS 2.7.5

Simon Josefsson simon at
Fri Feb 6 23:07:16 CET 2009

The GnuTLS 2.7.x branch is NOT what you want for your stable system.  It
is intended for developers and experienced users.

Here are the compressed sources: (5.8MB)

Here is the OpenPGP signature:

Improving GnuTLS is costly, but you can help!  We are looking for
organizations that find GnuTLS useful and wish to contribute back.  You
can contribute by reporting bugs, improve the software, or donate money
or equipment.

Commercial support contracts for GnuTLS are available, and they help
finance continued maintenance.  Simon Josefsson Datakonsult AB, a
Stockholm based privately held company, is currently funding GnuTLS
maintenance.  We are always looking for interesting development
projects.  See for more details.


* Version 2.7.5 (released 2009-02-06)

** libgnutls: Accept chains where intermediary certs are trusted.
Before GnuTLS needed to validate the entire chain back to a
self-signed certificate.  GnuTLS will now stop looking when it has
found an intermediary trusted certificate.  The new behaviour is
useful when chains, for example, contains a top-level CA, an
intermediary CA signed using RSA-MD5, and an end-entity certificate.
To avoid chain validation errors due to the RSA-MD5 cert, you can
explicitly add the intermediary RSA-MD5 cert to your trusted certs.
The signature on trusted certificates are not checked, so the chain
has a chance to validate correctly.  Reported by "Douglas E. Engert"
<deengert at> in

** libgnutls: result_size in gnutls_hex_encode now holds
the size of the result. Report by John Brooks <special at>.

** libgnutls: gnutls_handshake when sending client hello during a
rehandshake, will not offer a version number larger than the current.
Reported by Tristan Hill <stan at>.

** libgnutls: Permit V1 Certificate Authorities properly.
Before they were mistakenly rejected even though
GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT were supplied.  Reported by
"Douglas E. Engert" <deengert at> in

** API and ABI modifications:
No changes since last version.
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