From: Tony Arcieri Date: 2012-06-29T03:38:51+09:00 Subject: Re: AES Standard Examples confusion --000e0cd4bdc86bbab204c38ca410 Content-Type: text/plain; charset=ISO-8859-1 It uses padding per default: http://ruby-doc.org/stdlib-1.8.7/libdoc/openssl/rdoc/OpenSSL/Cipher.html#method-i-padding-3D If your plaintext is a multiple of the block size you can do cipher.padding = 0 to shut it off On Tue, Jun 26, 2012 at 12:12 PM, Spencer Roan wrote: > Thanks for the feedback! > > I've ripped out the base64 encoding decoding, though i'll be providing > wrapper methods for that once I get everything sorted out. > > I am now converting the strings from hexdigest to hex strings and things > are much better! > > All of the specs pass except those having to do with CBC cipher mode. > > For CBC > decrypting after encrypting gets me back what I started with. Yay. > expected cipher_text is a substring of the actual cipher_text. ??? > expected cipher_text is 16 characters long, the actual is 32 characters > long. hrm... > > This is puzzling. I suppose I could have copied the examples > incorrectly, but the lengths of all of the the cbc fields seems > consistent with the other cipher modes. > > -- > Posted via http://www.ruby-forum.com/. > > -- Tony Arcieri --000e0cd4bdc86bbab204c38ca410 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable It uses padding per default:

http://ruby-doc.org/stdlib-1.8.7/libdoc/openssl/rdoc/OpenSSL/Cipher.html= #method-i-padding-3D

If your plaintext is a multiple of the block size you c= an do cipher.padding =3D 0 to shut it off

On Tue, Jun 26, 2012 at 12:12 PM, Spencer Roan <lists@ruby-forum.com> wrote:

Thanks for the feedback!

I've ripped out the base64 encoding decoding, though i'll be provid= ing
wrapper methods for that once I get everything sorted out.

I am now converting the strings from hexdigest to hex strings and things are much better!

All of the specs pass except those having to do with CBC cipher mode.

For CBC
decrypting after encrypting gets me back what I started with. Yay.
expected cipher_text is a substring of the actual cipher_text. ???
expected cipher_text is 16 characters long, the actual is 32 characters
long. hrm...

This is puzzling. I suppose I could have copied the examples
incorrectly, but the lengths of all of the the cbc fields seems
consistent with the other cipher modes.

--
Posted via http://= www.ruby-forum.com/.

--
= Tony Arcieri

--000e0cd4bdc86bbab204c38ca410--