CCproc: A Custom VLIW Cryptography Co-processor for Symmetric-Key Ciphers

Abstract. In this paper, we present CCProc, a flexible cryptography coprocessor for symmetric-key algorithms. Based on an extensive analysis of many symmetric-key ciphers, including the five AES finalists, we designed an Instruction Set Architecture tailored to symmetric-key ciphers and built a hardware processor prototype by using the VHDL language. The design was mapped on FPGAs and ASIC. Results show a small-area design, while also supporting many ciphers. Besides flexibility, a 4-core FPGA design can achieve up to 615 Mbits/sec at 95 MHz for Rijndael. Key words: Cryptography, reconfigurable processors, VLIW

• Type: Conference
• Year: 2009
• Where: ARC
• Authors: Dimitris Theodoropoulos, Alexandros Siskos, Dionisios N. Pnevmatikatos
• Keywords: ARC 2009, Hardware, Symmetric-key Ciphers, five Aes finalists, flexible Cryptography Coprocessor