-------------------------------------------------- From: "Levente Uzonyi" leves@elte.hu Sent: Saturday, July 24, 2010 6:27 AM To: "Cryptography Team Development List" cryptography@lists.squeakfoundation.org Cc: "Squeak Dev" squeak-dev@lists.squeakfoundation.org Subject: [squeak-dev] Re: [Cryptography Team] DESPlugin is broken
On Sat, 24 Jul 2010, Rob Withers wrote:
Hans-Martin Mosner, if you have your ears on, I could use some help figuring out the algorithm. Anyone else for that matter.
Here is the spec: http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
The key is cooked for encryption or decryption The data block is submitted for encryption (or decryption, depending on the cooked key)
- first the data block is permuted using the Initial Permutation
- result of the permutation step is encrypted using the cooked key
- result of the encryption step is permuted using the inverse of the
Initial Permutation
I do not know if the problem is with the key cooking or the encryption transformation.
Thanks for any help!
Do the tests in the Cryptography package pass for you?
I should note that this failure is under Cog. I am trying to build plugins for Windows Squeak 4.0.2, but am having problems - the topic of a different thread I started.
Some DES test fail. In CryptoDESTest, I am failing on #testDES, #testDES2, #testDESFormal, and #testTripleDES, with the DESPlugin loaded. Without the Plugin all pass green.
Rob
Levente
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