[Resource Topic] 2002/019: Scream: a software-efficient stream cipher

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Scream: a software-efficient stream cipher

Authors: Shai Halevi, Don Coppersmith, Charanjit Jutla


We report on the design of Scream, a new software-efficient stream
cipher, which was designed to be a ``more secure SEAL’'. Following SEAL, the design of Scream resembles in many ways a block-cipher design. The new cipher is roughly as fast as SEAL, but we believe that it offers a significantly higher security level. In the process of designing this cipher, we re-visit the SEAL design paradigm, exhibiting some tradeoffs and limitations.

ePrint: https://eprint.iacr.org/2002/019

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