Why in Cipher Block Chaining (CBC) mode, an initialization
vector is needed in addition to the...
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Why in Cipher Block Chaining (CBC) mode, an initializationvector is needed in addition to the Key?
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Why in Cipher Block Chaining CBC mode an initialization vector is needed in addition to the Key In cryptography an initialization vector or starting variable is a fixedsize input to a cryptographic primitive that is typically required to be random or pseudorandom Randomization is crucial for encryption schemes to achieve semantic security a property whereby repeated usage of the scheme under the same key does not allow an attacker to infer relationships between segments of the encrypted message For block ciphers the use of an IV is described by the modes of operation Randomization is also required for other primitives such as universal hash functions and message authentication codes Cipher block chaining CBC mode is most
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