Invention Grant
US07873161B2 Small hardware implementation of the subbyte function of rijndael
失效
小硬件实现了rijndael的子字节功能
- Patent Title: Small hardware implementation of the subbyte function of rijndael
- Patent Title (中): 小硬件实现了rijndael的子字节功能
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Application No.: US10538556Application Date: 2003-11-28
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Publication No.: US07873161B2Publication Date: 2011-01-18
- Inventor: Bonnie C. Sexton
- Applicant: Bonnie C. Sexton
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- International Application: PCT/IB03/05508 WO 20031128
- International Announcement: WO2004/056036 WO 20040701
- Main IPC: H04L9/28
- IPC: H04L9/28 ; H04K1/00
Abstract:
A small hardware implementation is provided for the Advanced Encryption Standard SubByte function that implements the affine transform and inverse transform in a single Affine-All transform using a multiplicative inverse ROM. The logic is greatly reduced and the maximum path delay is reduced compared to a multiplexor implementation and is slightly greater than a ROM implementation.
Public/Granted literature
- US20060109981A1 Small hardware implementation of the subbyte function of rijndael Public/Granted day:2006-05-25
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