Issue #9154 has been reported by vo.x (Vit Ondruch).

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Bug #9154: Support for OpenSSL with MD5 disabled for certificate verification
https://bugs.ruby-lang.org/issues/9154

Author: vo.x (Vit Ondruch)
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p247 (2013-06-27) [x86_64-linux]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


=begin
In Fedora Rawhide, there was disable support for verification of certificate, CRL, and OCSP signatures using MD5 in OpenSSL [1, 2], therefore I observe following test errors:

   7) Error:
 test_sign_and_verify(OpenSSL::TestX509Request):
 OpenSSL::X509::RequestError: unknown message digest algorithm
     /builddir/build/BUILD/ruby-2.0.0-p247/test/openssl/test_x509req.rb:111:in `verify'
     /builddir/build/BUILD/ruby-2.0.0-p247/test/openssl/test_x509req.rb:111:in `test_sign_and_verify'
   8) Error:
 test_sign_and_verify(OpenSSL::TestX509Certificate):
 OpenSSL::X509::CertificateError: unknown message digest algorithm
     /builddir/build/BUILD/ruby-2.0.0-p247/test/openssl/test_x509cert.rb:140:in `verify'
     /builddir/build/BUILD/ruby-2.0.0-p247/test/openssl/test_x509cert.rb:140:in `test_sign_and_verify'
 
I was suggested by OpenSSL maintainer, that MD5 is obsolete and for modernization, it would be more useful to test SHA256 instead of MD5 for example. Any chance to make this test could pass out of the box and support more modern hashing algorithms?


[1] http://pkgs.fedoraproject.org/cgit/openssl.git/commit/?id=dcd0fb1ec9e2ef9bace5473cb3924a8d867ce84b

[2] http://pkgs.fedoraproject.org/cgit/openssl.git/commit/?id=9caf868063fd085ed4b2246f5f8dde91873d1c15
=end



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