TAILIEUCHUNG - Implementation of the SHA-2 Hash Family Standard Using FPGAs

The continued growth of both wired and wireless communications has triggered the revolution for the generation of new cryptographic algorithms. SHA-2 hash family is a new standard in the widely used hash functions category. | The Journal of Supercomputing 31 227-248 2005 2005 Springer Science Business Media Inc. Manufactured in The Netherlands. Implementation of the SHA-2 Hash Family Standard Using FPGAs N. SKLAVOS nsklavos@ O. KOUFOPAVLOU Electrical and Computer Engineering Department University of Patras Patras Greece Abstract. The continued growth of both wired and wireless communications has triggered the revolution for the generation of new cryptographic algorithms. SHA-2 hash family is a new standard in the widely used hash functions category. An architecture and the VLSI implementation of this standard are proposed in this work. The proposed architecture supports a multi-mode operation in the sense that it performs all the three hash functions 256 384 and 512 of the SHA-2 standard. The proposed system is compared with the implementation of each hash function in a separate FPGA device. Comparing with previous designs the introduced system can work in higher operation frequency and needs less silicon area resources. The achieved performance in the term of throughput of the proposed system architecture is much higher in a range from 277 to 417 than the other hardware implementations. The introduced architecture also performs much better than the implementations of the existing standard SHA-1 and also offers a higher security level strength. The proposed system could be used for the implementation of integrity units and in many other sensitive cryptographic applications such as digital signatures message authentication codes and random number generators. Keywords hash function standard security cryptography hardware implementation SHA-2 standard AES standard 1. Introduction In the last years communications growth has increased dramatically the amount of the transmitted data. In addition to the raised quantity of information is the increased quality demand for the protection of the transmission channel with high level security strength 13 . In order these special needs .

• An ninh - Bảo mật
• The Secure Hash Algorithm 1
• Secure hash family standard 2
• Proposed system architecture
• The VLSI implementation
• Implementation of the SHA 2
• Hash Family Standard Using FPGAs