'Synchronous stream cipher' presentation slideshows

Classical Cryptography

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Stream Cipher

Stream Cipher. Stream Cipher. A stream cipher breaks the message M into successive characters or bits m 1 , m 2 , ..., and enciphers each m i with the ith element k i of a key stream K=k 1 k 2 ...; that is, E K (M)=E k1 (m 1 )E k2 (m 2 ). Periodic.

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Stream Cipher

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Stream Cipher

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VL 713 Cryptography: Stream Ciphers

VL 713 Cryptography: Stream Ciphers. NN April 3 2009 Amritapuri. Overview. Stream Ciphers One-Time Pad LFSRs. Stream Ciphers: Characteristics. These encrypt individual characters or symbols of the message Encryption transformation varies with time (have memory)

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