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What is Chain Block Cipher with Triple DES about?

This document discusses multiple encryption and triple DES. It explains that encrypting and decrypting with DES uses two keys - one for encryption and one for decryption. It also notes that for DES, any two encryptions with different keys can be reduced to a single encryption with a third equivalent key. Therefore, multiple encryptions with DES provides no additional security over single encryption. It also discusses how using DES twice with different keys produces a mapping not defined by a single DES encr

Author

Ron

Language

EN