Secure software customization for smartcard

Details Secure software customization for smartcard Secure software customization for smartcard

2007-11-20

2007-11-20

Barron, Jr., Gilberto (Department: 2132)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S172000, C726S009000, C726S020000

Reexamination Certificate

active

10464240

ABSTRACT:
The customizing of a smartcard chip with a complete software begins with masking a smartcard chip by storing a first part of the software. The first part of the software, when executed, is enabled to input unlocking data at an input port of the smartcard chip, to use the unlocking data to decrypt encrypted data stored in the smartcard, and to store the decrypted data in the smartcard memory. Masking of the smartcard chip further comprises storing encrypted customization software. The customization software, when executed, is enabled to input data and to store the input data in the smartcard memory. After decrypting and executing the customization software; the second part of the software is input and stored in the smartcard, enabling the whole software on the smartcard.

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European Search Report dated May 19, 2003.

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