Block cipher
A symmetric cipher that operates on fixed-size blocks (typically 64 or 128 bits) under a key. AES is a 128-bit-block cipher; DES and Blowfish are 64-bit. Modes of operation define how to handle messages longer than one block.
A symmetric cipher that operates on fixed-size blocks (typically 64 or 128 bits) under a key. AES is a 128-bit-block cipher; DES and Blowfish are 64-bit. Modes of operation define how to handle messages longer than one block.
Practice with mock tests, learn from structured notes, and get your questions answered by a global forensic community, all in one place.