Block Cipher Mode of Operation with Cipher Block Chaining (CBC).
What is CBC?
CBC is short for Cipher Block Chaining, which is a mode of operation for a block cipher, such as the Advanced Encryption Standard (AES). CBC works by taking the plaintext message, dividing it into blocks of a certain size, and then encrypting each block. The encrypted blocks are then chained together using the encrypted version of the previous block as an input to the encryption of the current block. This helps to ensure the integrity of the ciphertext since any changes to a single block will propagate through the rest of the encrypted blocks. CBC also provides message authentication and is considered a more secure form of encryption than the Electronic Codebook (ECB) mode.
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