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stream cipher
symmetric encryption system with the property that the encryption algorithm involves combining a sequence of plaintext symbols with a sequence of keystream symbols one symbol at a time, using an invertible function. Two types of stream cipher can be identified: synchronous stream ciphers and self-synchronous stream ciphers, distinguished by the method used to obtain the keystream.
source: ISO18033-1, 2005
symmetric encryption system with the property that the encryption algorithm involves combining a sequence of plaintext symbols with a sequence of keystream symbols one symbol at a time, using an invertible function. Two types of stream cipher can be identified: synchronous stream ciphers and self-synchronizing stream ciphers, distinguished by the method to obtain the keystream. [ISO/IEC 18033-1: 2005]
source: ISO18033-4, 2005
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