How can I prove that a Feistel round is its own inverse for DES? You'll need to complete a few actions and gain 15 reputation points before being able to upvote Upvoting indicates when questions and answers are useful What's reputation and how do I get it? Instead, you can save this post to reference later
DES Encryption: Looking for results for each round of encryption . . . Yes, that is correct; the decryption subkeys are exactly the encryption subkeys in the opposite order I don't have the per-round test vectors you were asking for, but I can make this suggestion: if you have DES working in the encrypt direction, you can generate the test vector yourself; recording the state of the block after each round
block cipher - How long does it take to crack DES and AES . . . Suppose that a single evaluation of a block-cipher (DES or AES) takes 10 operations, and the computer can do $10^{15}$ such operations per second How long would it take for to recover a DES key,
Calculation of time needed to crack DES with my CPU I have a laptop that has the CPU and the RAMs shown below in the images My question is that, using this CPU and the RAMs, how much time would it take for me to crack an old school DES algorithm
How 3DES work in a simple way? - Cryptography Stack Exchange 3DES decryption is thus to 3DES encryption what DES decryption is to DES encryption; the main external difference between 3DES and DES being the larger key Because the plaintext is transformed more thoroughly than in DES, and with a larger key, reversing the encryption operation without knowledge of the key is more difficult in 3DES than in DES
What is DES-EDE3-CBC? - Cryptography Stack Exchange I came across DES-EDE3-CBC and a quick search didn't yield a clear explanation of what it is Clearly, DES is the Data Encryption Standard and CBC is the Cipher Block Chaining mode
Cracking 2-Key Triple DES - Cryptography Stack Exchange I've been given that an attacker has a 2-Key Triple DES Cracker that is capable of performing 10$^{24}$ encryptions per second and have subsequently been asked how long it must take before the atta