David Aspinall

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Outline Stream ciphers Block ciphers DES and Rijndael Summary Stream ciphers and block ciphers Symmetric-key encryption schemes are often characterised as stream ciphers or block ciphers, but the distinction can be fuzzy. ◮ A stream cipher is an encryption scheme which treats the plaintext symbol-by-symbol (e.g., by bit or byte); ◮ security in a stream(More)
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