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Steganography
History of Cryptography
Basics of Cryptography
Downloads
- Advanced-Encryption-Standard.pdf [PDF, 383.41 KB]
- Developing-the-Advanced-encryption-stander.pdf [PDF, 1.02 MB]
- Rijndael.pdf [PDF, 1019.09 KB]
- Rijndael_Flash_Animation.exe [X-MSDOWNLOAD, 506.02 KB]
Kasiski Method
Sat, 03/24/2007 - 16:37 — l0ck* use repetitions in ciphertext to give clues as to period, looking for same plaintext an exact period apart, leading to same ciphertext
Plaintext: TOBEORNOTTOBE
Key: NOWNOWNOWNOWN
Ciphertext: GCXRCNACPGCXR
Since repeats are 9 chars apart, guess period is 3 or 9.
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l0ck.com data encryption