Invention Grant
- Patent Title: Wide encoding of intermediate values within a white-box implementation
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Application No.: US14971851Application Date: 2015-12-16
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Publication No.: US10171234B2Publication Date: 2019-01-01
- Inventor: Wilhelmus Petrus Adrianus Johannus Michiels , Joppe Willem Bos , Philippe Teuwen
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L9/14 ; H04L29/06 ; H04L9/06
Abstract:
A method for a method for mapping an input message to an output message by a keyed cryptographic operation in a cryptographic system, including a plurality of rounds wherein each round has a substitution layer, wherein wide encoding is used on the substitution layer in the rounds that require protection from attacks.
Public/Granted literature
- US20170180119A1 WIDE ENCODING OF INTERMEDIATE VALUES WITHIN A WHITE-BOX IMPLEMENTATION Public/Granted day:2017-06-22
Information query
