Skip to content

Instantly share code, notes, and snippets.

@vbatts

vbatts/ssl_asn1_decode.rb

Created November 12, 2012 18:33
Show Gist options
  • Save vbatts/4061036 to your computer and use it in GitHub Desktop.
Save vbatts/4061036 to your computer and use it in GitHub Desktop.
Download ZIP
SSL ASN1 decoding variant from MRI to Jruby
Raw
ssl_asn1_decode.rb
require 'find'
require 'openssl'
ENTRUST_VERSION_OID = '1.2.840.113533.7.65.0'
def find_pem(d = '/etc')
Find.find(d) do |path|
next unless FileTest.file? path
if path.end_with? '.pem'
if block_given?
yield path
else
return path
end
end
end
end
def value_from_oid(cert, oid)
ext = cert.extensions.detect {|ext| ext.oid == oid }
return unless ext
return OpenSSL::ASN1.decode(OpenSSL::ASN1.decode(ext.to_der).value[1].value).value
end
def main(args)
find_pem do |pem|
cert = OpenSSL::X509::Certificate.new(File.read(pem))
next unless ext = cert.extensions.detect {|e| e.oid == ENTRUST_VERSION_OID}
puts value_from_oid(cert, ext.oid)
end
end
main(ARGV) if $0 == __FILE__
@vbatts
Copy link
Author

vbatts commented Nov 12, 2012

$ ruby -v ssl_test.rb
ruby 1.9.3p194 (2012-04-20 revision 35410) [x86_64-linux]
ssl_test.rb:21: warning: shadowing outer local variable - ext

OpenSSL::ASN1::GeneralString:0x0000000167d620

OpenSSL::ASN1::BitString:0x0000000167d5d0

OpenSSL::ASN1::GeneralString:0x0000000167cb80

OpenSSL::ASN1::BitString:0x0000000167cb30

OpenSSL::ASN1::GeneralString:0x0000000167ba28

OpenSSL::ASN1::BitString:0x0000000167b9d8

OpenSSL::ASN1::GeneralString:0x0000000167afb0

OpenSSL::ASN1::BitString:0x0000000167af38

OpenSSL::ASN1::GeneralString:0x0000000167a650

OpenSSL::ASN1::BitString:0x0000000167a600

OpenSSL::ASN1::GeneralString:0x00000001681388

OpenSSL::ASN1::BitString:0x00000001681338

OpenSSL::ASN1::GeneralString:0x00000001680280

OpenSSL::ASN1::BitString:0x00000001680230

OpenSSL::ASN1::GeneralString:0x00000001694438

OpenSSL::ASN1::BitString:0x000000016943c0

OpenSSL::ASN1::GeneralString:0x00000001693740

OpenSSL::ASN1::BitString:0x000000016936f0

$ jruby -v ssl_test.rb
jruby 1.6.7.2 (ruby-1.9.2-p312) (2012-05-01 26e08ba) (OpenJDK 64-Bit Server VM 1.7.0_07) [linux-amd64-java]
ssl_test.rb:21 warning: shadowing outer local variable - ext
ArgumentError: (TypeError) can't convert false into String
decode at org/jruby/ext/openssl/ASN1.java:585
value_from_oid at ssl_test.rb:24
main at ssl_test.rb:31
find_pem at ssl_test.rb:12
find at /opt/jruby/lib/ruby/1.9/find.rb:41
catch at org/jruby/RubyKernel.java:1197
find at /opt/jruby/lib/ruby/1.9/find.rb:40
find_pem at ssl_test.rb:8
main at ssl_test.rb:28
(root) at ssl_test.rb:35

$ java -jar /home/vbatts/src/jruby/lib/jruby-complete.jar -v ssl_test.rb
jruby 1.7.1.dev (1.9.3p286) 2012-11-12 f0cdc2b on OpenJDK 64-Bit Server VM 1.7.0_07-b30 [linux-amd64]
ssl_test.rb:21 warning: shadowing outer local variable - ext
ArgumentError: (TypeError) can't convert false into String
decode at org/jruby/ext/openssl/ASN1.java:588
value_from_oid at ssl_test.rb:24
main at ssl_test.rb:31
find_pem at ssl_test.rb:12
find at jar:file:/home/vbatts/src/jruby/lib/jruby-complete.jar!/META-INF/jruby.home/lib/ruby/1.9/find.rb:41
catch at org/jruby/RubyKernel.java:1175
find at jar:file:/home/vbatts/src/jruby/lib/jruby-complete.jar!/META-INF/jruby.home/lib/ruby/1.9/find.rb:40
find_pem at ssl_test.rb:8
main at ssl_test.rb:28
(root) at ssl_test.rb:35

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment