Invention Grant
- Patent Title: Masking of binary words processed by an integrated circuit
- Patent Title (中): 由集成电路处理的二进制字的掩码
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Application No.: US11304236Application Date: 2005-12-14
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Publication No.: US08635460B2Publication Date: 2014-01-21
- Inventor: Pierre-Yvan Liardet , Yannick Teglia
- Applicant: Pierre-Yvan Liardet , Yannick Teglia
- Applicant Address: FR Montrouge
- Assignee: STMicroelectronics S.A.
- Current Assignee: STMicroelectronics S.A.
- Current Assignee Address: FR Montrouge
- Agency: Wolf, Greenfield & Sacks, P.C.
- Priority: FR0452968 20041214
- Main IPC: G06F11/30
- IPC: G06F11/30 ; G06F12/14
Abstract:
A method and a circuit for masking a digital word by application of a random bijection, including applying at least one first operation including selecting a non-disjoint subset of the word having its position and size depending on a first random quantity, and assigning to each bit of the subset, the state of the bit having a symmetrical position with respect to the middle of the subset, to obtain a masked digital quantity.
Public/Granted literature
- US20060125664A1 Masking of binary words processed by an integrated circuit Public/Granted day:2006-06-15
Information query
