Method and device for making information contents of a...

Details Method and device for making information contents of a... Method and device for making information contents of a...

2007-04-03

2007-04-03

Barrón, Jr., Gilberto (Department: 2134)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C326S008000, C713S189000, C713S193000

Reexamination Certificate

active

09875977

ABSTRACT:
A method is disclosed of making information contents of memory-cells of a volatile semiconductor memory irretrievable. In a first step a digital pattern is generated and in a second step the information contents are overwritten with the digital pattern at least two times. The digital pattern is predefined, comprising both zeros and ones and overwrites the information contents alternately with its complementary pattern.

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Dallas Semiconductor Corp., “DS5002FP: Secure Microprocessor Chip,” User Manual, 1995.

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