[OpenSSL 3] OpenSSL::Cipher.new fails with supported cipher #500
Description
net-ssh has some test failures because it tries to call OpenSSL::Cipher.new with the following ciphers: bf-cbc, bf-ecb, cast-cbc, and cast5-ecb. The error is: OpenSSL::Cipher::CipherError: unsupported.
I checked if those ciphers are still supported in the OpenSSL 3 library version available in Ubuntu and they are:
$ openssl version
OpenSSL 3.0.1 14 Dec 2021 (Library: OpenSSL 3.0.1 14 Dec 2021)
$ irb
irb(main):001:0> require 'openssl'
=> true
irb(main):002:0> OpenSSL::Cipher.ciphers.include?('cast5-ecb')
=> true
irb(main):003:0> OpenSSL::Cipher.new('cast5-ecb')
(irb):3:in `initialize': unsupported (OpenSSL::Cipher::CipherError)
from (irb):13:in `new'
from (irb):13:in `<main>'
from /usr/lib/ruby/gems/3.0.0/gems/irb-1.3.5/exe/irb:11:in `<top (required)>'
from /usr/bin/irb:23:in `load'
from /usr/bin/irb:23:in `<main>'
With OpenSSL 1.1.1f it works just fine:
$ openssl version
OpenSSL 1.1.1f 31 Mar 202
$ irb
irb(main):001:0> require 'openssl'
=> true
irb(main):002:0> OpenSSL::Cipher.ciphers.include?('cast5-ecb')
=> true
irb(main):003:0> OpenSSL::Cipher.new('cast5-ecb')
=> #<OpenSSL::Cipher:0x0000558d761cdcf8>
AFAIU those calls to OpenSSL::Cipher.new should work since the cipher is available in OpenSSL::Cipher::ciphers. Please, correct me if I am wrong.