A Dynamic FPGA Implementation of the Serpent Block Cipher
نویسنده
چکیده
A JBits implementation of the Serpent block cipher in a Xilinx FPGA is described. JBits provides a Java-based Application Programming Interface (API) for the run-time modification of the configuration bitstream. This allows dynamic circuit specialization based on a specific key and mode (encrypt or decrypt). Subkeys are computed in software and treated as constants in the Serpent datapath. The resulting logic optimization produces a circuit that is half the size and twice the speed of a static, synthesized implementation. With a throughput of over 10 Gigabits per second, the JBits implementation has sufficient bandwidth for SONET OC-192c (optical) networks.
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تاریخ انتشار 2000