Invention Grant
- Patent Title: Security patch without changing the key
- Patent Title (中): 安全补丁，无需更改密钥
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Application No.: US14263308Application Date: 2014-04-28
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Publication No.: US09338145B2Publication Date: 2016-05-10
- Inventor: Wil Michiels , Jan Hoogerbrugge
- Applicant: NXP B.V.
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Main IPC: G06F21/16
- IPC: G06F21/16 ; H04L29/06
Abstract:
A method of patching a cryptographic implementation without changing a key in a cryptographic system, including: sending a message from a first message set to the cryptographic implementation, wherein the first message uses a first portion of the cryptographic implementation; deciding to patch the cryptographic implementation; sending a second message from a second message set to the cryptographic implementation after deciding to patch the cryptographic implementation, wherein the second message use a second portion of the cryptographic implementation that is not used for any messages in the first message set.
Public/Granted literature
- US20150312225A1 SECURITY PATCH WITHOUT CHANGING THE KEY Public/Granted day:2015-10-29
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