Initialization vector (IV): A random value used in some encryption algorithms to ensure that the same plaintext input always produces a different ciphertext output. IVs are commonly used in block cipher algorithms to prevent patterns or repetitions in the encrypted data, which could make it more vulnerable to attack. An example of IV usage could be in a secure messaging app that uses IVs to prevent an attacker from guessing the encryption key based on repeated messages.
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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