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IJES
2008
102views more  IJES 2008»
13 years 11 months ago
Alternative application-specific processor architectures for fast arbitrary bit permutations
Block ciphers are used to encrypt data and provide data confidentiality. For interoperability reasons, it is desirable to support a variety of block ciphers efficiently. Of the bas...
Zhijie Jerry Shi, Xiao Yang, Ruby B. Lee
ASAP
2003
IEEE
124views Hardware» more  ASAP 2003»
14 years 4 months ago
Arbitrary Bit Permutations in One or Two Cycles
Symmetric-key block ciphers encrypt data, providing data confidentiality over the public Internet. For inter-operability reasons, it is desirable to support a variety of symmetric...
Zhijie Shi, Xiao Yang, Ruby B. Lee
ICCD
2001
IEEE
120views Hardware» more  ICCD 2001»
14 years 8 months ago
Architectural Enhancements for Fast Subword Permutations with Repetitions in Cryptographic Applications
We propose two new instructions, swperm and sieve, that can be used to efficiently complete an arbitrary bit-level permutation of an n-bit word with or without repetitions. Permut...
John Patrick McGregor, Ruby B. Lee
ARITH
2001
IEEE
14 years 2 months ago
Computer Arithmetic-A Processor Architect's Perspective
The Instruction Set Architecture (ISA) of a programmable processor is the native languageof the machine. It defines the set of operations and resourcesthat are optimized for that ...
Ruby B. Lee