E-fuses for storing security version data

Details E-fuses for storing security version data E-fuses for storing security version data

2004-07-15

2008-12-02

Kim, Jung (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S189000, C713S194000, C365S225700

Reexamination Certificate

active

07461268

ABSTRACT:
Methods and devices that may be utilized in systems to dynamically update a security version parameter used to encrypt secure data are provided. The version may be maintained in persistent storage located on a device implementing the encryption, such as a system on a chip (SOC). The persistent storage does not require battery backing and, thus, the cost and complexity associated with conventional systems utilizing battery backed storage may be reduced.

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Foster et al., IBM U.S. Appl. No. 10/691,924, filed Oct. 23, 2003, “Initializing, Maintaining, Updating and Recovering Secure Operation Within an Integrated System Employing a Data Access Control Function”.

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