Hardware Implementations of Multi-output Welch-Gong Ciphers

Provided by: University of Waterloo
Topic: Hardware
Format: PDF
The WG family of ciphers provides keystreams with mathematically proven randomness properties such as ideal two-level autocorrelation, balance, long period, ideal tuple distribution, and high and exact linear complexity. In this paper, the authors extend the mathematical analysis of WG family of ciphers to Multi-Output WG (MOWG) ciphers and demonstrate that MOWG ciphers provide a large design space of hardware architectures and implementation options with tradeoffs in security, area, and performance, including options that are competitive with the eSTREAM Phase-3 Profile-2 finalists.

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