Invention Grant
US08411864B2 Method of modifying secrets included in a cryptographic module, notably in an unprotected environment
有权
修改包含在密码模块中的秘密的方法，特别是在未受保护的环境中
- Patent Title: Method of modifying secrets included in a cryptographic module, notably in an unprotected environment
- Patent Title (中): 修改包含在密码模块中的秘密的方法，特别是在未受保护的环境中
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Application No.: US12528183Application Date: 2008-02-27
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Publication No.: US08411864B2Publication Date: 2013-04-02
- Inventor: Thierry D'athis , Philippe Dailly , Denis Ratier
- Applicant: Thierry D'athis , Philippe Dailly , Denis Ratier
- Applicant Address: FR Neuilly sur Seine
- Assignee: Thales
- Current Assignee: Thales
- Current Assignee Address: FR Neuilly sur Seine
- Agency: Strook & Stroock & Lavan LLP
- Priority: FR0701625 20070306
- International Application: PCT/EP2008/052376 WO 20080227
- International Announcement: WO2008/107351 WO 20080912
- Main IPC: H04L29/06
- IPC: H04L29/06
Abstract:
A method of modifying a set of secrets in a cryptographic module, to ensure that the modifying is either successful or invalid. The module includes readable version numbers for each secret and for the set of secrets. If the version number of the set of secrets is equal to a version number requiring the loading of a set of new secrets, the version number of the set of secrets of the cryptographic module is set to a distinctive number indicating that the cryptographic module is being reloaded. Next, for each secret, if the version number of the secret is different from the version number of the corresponding new secret to be loaded, the new secret and its version number are loaded. Next the version number of the set of secrets of the cryptographic module is set to the version number of the set of new secrets.
Public/Granted literature
- US20100135496A1 METHOD OF MODIFYING SECRETS INCLUDED IN A CRYPTOGRAPHIC MODULE, NOTABLY IN AN UNPROTECTED ENVIRONMENT Public/Granted day:2010-06-03
Information query
