Presentation 2010-07-01
An Optimization of AES Decryption Using the Bitslice Technique
Fumihiko SANO,
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Abstract(in English) We implemented a decryption process of AES with new bitslice technique by Kasper et al. for encryption. In conventional implementation, decryption process will take about 30% additional cycles than encryption. We present a new optimization techniq for InvMixColumns that is a part of AES decryption and implemented on Intel Core2 processor. As a result of our study we show that optimization for decryption with bitslice takes increase of about 10% over encryption. It is about 18% faster than ordinary decryption.
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Keyword(in English) Fast software implementaion / Bitslice / AES
Paper # ISEC2010-15,SITE2010-11,ICSS2010-21
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Committee ISEC
Conference Date 2010/6/24(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Optimization of AES Decryption Using the Bitslice Technique
Sub Title (in English)
Keyword(1) Fast software implementaion
Keyword(2) Bitslice
Keyword(3) AES
1st Author's Name Fumihiko SANO
1st Author's Affiliation Advanced IT Laboratory, Toshiba Solutions Corporation()
Date 2010-07-01
Paper # ISEC2010-15,SITE2010-11,ICSS2010-21
Volume (vol) vol.110
Number (no) 113
Page pp.pp.-
#Pages 5
Date of Issue