Replace use of Digest::MD5 / Digest::SHA1 with ActiveSupport::Digest
ActiveSupport::Digest to allow central configuration of the actual digest implementation that is used throughout Rails. This is helpful in environments where certain digest implementations (most notably, MD5) are not available, i.e. to be FIPS compliant.
The attached patch replaces all uses of
ActiveSupport::Digest. Without further configuration, this will result in
Digest::SHA1 being used in all these instances since that's the current Rails default. This can be changed by users via the config.active_support.hash_digest_class setting , i.e.:
Rails.application.config.active_support.hash_digest_class = OpenSSL::Digest::SHA256
#1 Updated by Pavel Rosický about 1 month ago
thanks for working on this!
however, the OpenID change isn't safe. The SHA1 algorithm is hardcoded here and your change will break it.
https://github.com/openid/ruby-openid do support SHA256, maybe add an option to choose it? It has to be a separate option, it can't depend on Rails.application.config.active_support.hash_digest_class
the second missing part is gravatars https://github.com/redmine/redmine/blob/master/lib/plugins/gravatar/lib/gravatar.rb#L68
as discussed in https://www.redmine.org/boards/2/topics/65253 I don't think there's a way to support this feature without MD5, so if the digest isn't available, the feature has to be disabled.