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by dfox
3607 days ago
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A5/1 is probably perfect example of what I had in mind as it generates output one bit at a time and it's output has quite large period, the fact that in GSM it's used to generate pair of 114bit keystreams is somewhat irelevant to that. All three ciphers in eSTREAM hardware profile are specified in same way (although all of them are designed in a way that allows for more output bits to be computed in parallel) |
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