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Substitution Techniques 10/18/2010 K.Marimuthu,SCSE Network Security 1 Classical Ciphers Plaintext is viewed as a sequence of elements (e.g., bits or characters) Substitution…

Documents 2.0 Classical Encryption Techniques

Classical Encryption Techniques Classical Encryption Techniques What is Cryptography? The art of secret writing The art of protection using information The science of encrypting…

Documents Classical Encryption Techniques

Classical Encryption Techniques Classical Encryption Techniques As opposed to modern cryptography Symmetric-key Symmetric Cipher Model 2 2 Brute-Force Attack Try every key…

Documents Classical Encryption Techniques

Classical Encryption Techniques Classical Encryption Techniques As opposed to modern cryptography Symmetric-key Symmetric Cipher Model 2 2 Brute-Force Attack Try every key…