Design and FPGA implementation of hash processor

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Date

2007

Author

Şiltu, Çelebi Tuğba

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In this thesis, an FPGA based hash processor is designed and implemented using a hardware description language; VHDL. Hash functions are among the most important cryptographic primitives and used in the several fields of communication integrity and signature authentication. These functions are used to obtain a fixed-size fingerprint or hash value of an arbitrary long message. The hash functions SHA-1 and SHA2-256 are examined in order to find the common instructions to implement them using same hardware blocks on the FPGA. As a result of this study, a hash processor supporting SHA-1 and SHA2-256 hashing and having a standard UART serial interface is proposed. The proposed hash processor has 14 instructions. Among these instructions, 6 of them are special instructions developed for SHA-1 and SHA-256 hash functions. The address length of the instructions is six bits. The data length is 32 bits. The proposed instruction set can be extended for other hash algorithms and they can be implemented over the same architecture. The hardware is described in VHDL and verified on Xilinx FPGAs. The advantages and open issues of implementing hash functions using a processor structure are also discussed.

Subject Keywords

Electronics.

URI

http://etd.lib.metu.edu.tr/upload/12609078/index.pdf
https://hdl.handle.net/11511/17374

Collections

Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

Ç. T. Şiltu, “Design and FPGA implementation of hash processor,” M.S. - Master of Science, Middle East Technical University, 2007.