OPTIMAL DATAPATH DESIGN FOR A CRYPTOGRAPHIC PROCESSOR: THE BLOWFISH ALGORITHM
BLOWFISH is a fast cryptographic software algorithm, using the operations of addition, XOR and look-up tables. This paper reports on the design of a hardware implementation for greater speed, with pipelining and different bitwidths of registers and processing units. An 8-bit parallel data-path giv...
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| Main Authors: | , |
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| Format: | Article |
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University of Malaya
2001
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| Online Access: | http://ejum.fsktm.um.edu.my/ArticleInformation.aspx?ArticleID=110 http://eprints.utp.edu.my/4230/ |
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| Summary: | BLOWFISH is a fast cryptographic software algorithm, using the operations of addition, XOR and look-up tables.
This paper reports on the design of a hardware implementation for greater speed, with pipelining and different bitwidths
of registers and processing units. An 8-bit parallel data-path gives the best performance, mapping into 4
independent 8-bit modules, with a throughput at least 4 times greater than with 32-bit hardware. The design is
suitable for implementation using small amounts of RAM and programmable logic. |
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