key_len differs with Ruby
-------------------------
Key: JRUBY-1323
URL: http://jira.codehaus.org/browse/JRUBY-1323
Project: JRuby
Issue Type: Bug
Components: OpenSSL
Reporter: Robert Egglestone
Assignee: Thomas E Enebo
Ruby appears to return key_len in bytes, and iv_len in bits.
$ irb < test_size.rb
require 'rubygems'
true
OpenSSL::Cipher::Cipher.new('AES-256-CBC').key_len
32
OpenSSL::Cipher::Cipher.new('AES-256-CBC').iv_len
16
OpenSSL::Cipher::Cipher.new('AES-128-CBC').key_len
16
OpenSSL::Cipher::Cipher.new('AES-128-CBC').iv_len
16
OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').key_len
24
OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').iv_len
8
However, JRuby returns both in bits.
$ jirb < test_size.rb
irb(main):001:0> require 'rubygems'
=> true
irb(main):002:0> OpenSSL::Cipher::Cipher.new('AES-256-CBC').key_len
=> 256
irb(main):003:0> OpenSSL::Cipher::Cipher.new('AES-256-CBC').iv_len
=> 128
irb(main):004:0> OpenSSL::Cipher::Cipher.new('AES-128-CBC').key_len
=> 128
irb(main):005:0> OpenSSL::Cipher::Cipher.new('AES-128-CBC').iv_len
=> 128
irb(main):006:0> OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').key_len
=> 168
irb(main):007:0> OpenSSL::Cipher::Cipher.new('DES-EDE3-CBC').iv_len
=> 64
Can be fixed by dividing by 8 in Cipher.java:
public IRubyObject key_len() {
return getRuntime().newFixnum(keyLen / 8);
}
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