An FPGA-based performance comparison of the 64-bit block ciphers

An FPGA-based performance comparison of 64-bit block ciphers (Triple-DES, IDEA, CAST- 128, MISTYl, and KHAZAD) is given in this paper. Two basic architectures are implemented for each cipher. For the non-feedback cipher modes, the pipelined technique between the rounds is used, and the achieved throughput ranges from 3.0 Gbps for IDEA to 6.9 Gbps for Triple-DES. For feedback ciphers modes, the basic iterative architecture is considered and the achieved throughput ranges from 115 Mbps for Triple-DES to 462 Mbps for KHAZAD. The throughput, throughput per slice, latency, and area requirement results are provided for all the cipher implementations.