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The "PYRAMIDS" block cipher is a symmetric encryption algorithm of a 64, 128, 256-bit length, that accepts a variable key length of 128, 192, 256 bits. The algorithm is an iterated cipher consisting of repeated applications of a simple round transformation with different operations and different sequence in each round. The algorithm was previously software implemented in C++ code. In this...
A time and area efficient hardware implementation of the 64-bit NESSIE proposal, MISTY1 block cipher, is presented in this paper. The new proposed architecture achieves high-speed and small silicon area. The VLSI implementation uses feedback logic and inner pipeline with negative edge-triggered register. So, the critical path is shorter, without increasing the latency of cipher execution. Comparing...
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