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US 2021/0173793 A1Published application
Method of Protecting Sensitive Data in Integrated Circuit and Integrated Circuit Utilizing Same
AssigneeRealtek Singapore Private Limited
InventorAlan Maciel Carr
Life of this patent
Estimating the term…
Abstract
A method of protecting a sensitive data sequence in an integrated circuit includes generating a pseudorandom sequence according to a seed sequence; combining the sensitive data sequence with the pseudorandom sequence to generate a protected data sequence; and storing the protected data sequence and the seed sequence. The sensitive data sequence is inaccessible from outside of the integrated circuit.
Claims20
An integrated circuit comprising:
- a seed register configured to store a seed sequence;
- a pseudorandom sequence generator coupled to the seed register and configured to generate a pseudorandom sequence according to the seed sequence;
- a combiner coupled to the pseudorandom sequence generator and configured to combine a sensitive data sequence with the pseudorandom sequence to generate a protected data sequence, the sensitive data sequence being inaccessible from outside of the integrated circuit;
- and
- a non-volatile memory coupled to the combiner and configured to store the protected data sequence.
2 more elements
An integrated circuit comprising:
- a seed register configured to store a seed sequence;
- a pseudorandom sequence generator coupled to the seed register and configured to generate a pseudorandom sequence according to the seed sequence;
- a non-volatile memory configured to store a protected data sequence;
- and
- a combiner coupled to the pseudorandom sequence generator and the non-volatile memory and configured to combine the protected data sequence with the pseudorandom sequence to recover a sensitive data sequence, the sensitive data sequence being inaccessible from outside of the circuit.
2 more elements
A method of protecting a sensitive data sequence in an integrated circuit comprising:
- generating a pseudorandom sequence according to a seed sequence;
- combining the sensitive data sequence with the pseudorandom sequence to generate a protected data sequence, the sensitive data sequence being inaccessible from outside of the integrated circuit;
- and
- storing the protected data sequence and the seed sequence.
1 more element
Dependencies are inferred from the claim text.