High-Throughput Area-Efficient Processor for Cryptography

Cryptography circuits for portable electronic devices provide user authentication and secure data communication. These circuits should, achieve high performance, occupy small chip area, and handle several cryptographic algorithms. This paper proposes a highperformance ASIP (Application specific instruction set processor) for five standard cryptographic algorithms including both block ciphers (AES, Camellia, and ARIA) and stream ciphers (ZUC and SNOW 3G). The processor reaches ASIC-like performance such as 11.6 Gb/s for AES encryption, 16.0 Gb/s for ZUC, and 32.0 Gb/s for SNOW 3G, etc under the clock frequency of 1.0 GHz with the area consumption of 0.56 mm² (65 nm). Compared with stateof-the-art VLSI designs, our design achieves high performance, low silicon cost, low power consumption, and sufficient programmability. For its programmability, our design can offer algorithm modification when an algorithm supported is unfortunately cracked and invalid to use. The product lifetime of our design can thus be extended.