Issue #19308 has been updated by vo.x (Vit Ondruch). Just FTR, I have received the same error also after closing this ticket ... ---------------------------------------- Bug #19308: Fix `OpenSSL::X509::CertificateError: invalid digest` on CentOS 9 / RHEL 9 https://bugs.ruby-lang.org/issues/19308#change-101027 * Author: vo.x (Vit Ondruch) * Status: Closed * Priority: Normal * ruby -v: ruby 3.2.0 (2022-12-25 revision a528908271) [x86_64-linux] * Backport: 2.7: DONTNEED, 3.0: DONTNEED, 3.1: DONTNEED, 3.2: REQUIRED ---------------------------------------- CentOS 9 / RHEL 9 requires prohibits SHA1 for signing purposes, therefore these specs fail: ~~~ 1) OpenSSL::X509::Name.verify returns true for valid certificate ERROR OpenSSL::X509::CertificateError: invalid digest /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:15:in `sign' /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:15:in `block (2 levels) in <top (required)>' /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:4:in `<top (required)>' 2) OpenSSL::X509::Name.verify returns false for an expired certificate ERROR OpenSSL::X509::CertificateError: invalid digest /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:31:in `sign' /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:31:in `block (2 levels) in <top (required)>' /builddir/build/BUILD/ruby-3.2.0/spec/ruby/library/openssl/x509/name/verify_spec.rb:4:in `<top (required)>' ~~~ I have opened PR [here](https://github.com/ruby/spec/pull/990), but I'd also like see this backported into 3.2, hence also reporting here. -- https://bugs.ruby-lang.org/