Substitution cipher: A cryptographic technique that replaces each element in a message with another element using a predetermined key. It is used to secure communication and protect sensitive information from interception, with examples like the Caesar cipher, Vigenère cipher, and Atbash cipher.
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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