Cipher: An algorithm used for performing encryption or decryption—a series of well-defined steps that can be followed to transform an input (plaintext) into an output (ciphertext) or vice versa. Ciphers are fundamental to modern cryptography and operate based on a piece of auxiliary information known as a key. The key determines the particular transformation of plaintext into ciphertext, or vice versa, during encryption and decryption.
Categories: CC D5: Security Operations | CCSP D2: Cloud Data Security | CISM D3: Information Security Program | CISSP D3: Security Architecture and Engineering | Security+ D1: General Security Concepts | SSCP D5: Cryptography
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