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Questions About Everything

What Are the Benefits of the Two Permutation Tables in DES?

Should I Use ECB or CBC Encryption Mode for My Block Cipher?

AES Key Length vs Block Length

Is It Okay to Use a Hash of a Timestamp as the IV for AES?

Can You Create a Strong Blockcipher with Small Blocksize, given a Strong Blockcipher of Conventional Blocksize?

Is a Small Size Block Cipher Usable?

GCM Encryption for 256-Bit & 512-Bit Block Ciphers

Malleability Attacks against Encryption without Authentication

CTR Mode Nonce with Aggressive Key Rotation Policy

How Do I Apply Differential Cryptanalysis to a Block Cipher?