Method and device for checking an identifier
AssigneeInfineon Technologies AG
InventorsChristopher Temple, Dian Tresna Nugraha, Edward Wiley, Laurent Heidt
Life of this patent
Estimating the term…
Abstract
An embodiment relates to a method for processing data that includes (a) calculating a second identifier based on input data, (b) conducting a first operation comparing the second identifier with a first identifier, and (c) conducting a second operation comparing the second identifier with a modified first identifier.
Claims24
A method for processing data comprising:
- (a) calculating a second identifier based on input data;
- (b) conducting a first operation comparing the second identifier with a first identifier;
- and
- (c) conducting a second operation comparing the second identifier with a modified first identifier.
A device for checking a first identifier, comprising a processing unit that is configured to
- convey the first identifier and input data to a security processor,
- convey a modified first identifier to the security processor,
- obtain a first result of a first operation and a second result of a second operation conducted by the security processor, and
- assess the first result and the second result.
A device for processing data, comprising a processing unit that is configured to
- obtain a first identifier and input data from a master processor;
- calculate a second identifier based on the input data;
- conduct a first operation comparing the second identifier with the first identifier;
- obtain a modified first identifier from the master processor;
- conduct a second operation comparing the second identifier with the modified first identifier;
- and
- convey a result of the first operation and a result of the second operation to the master processor.
A device for checking a first identifier, comprising:
- means for obtaining a first identifier and input data from a master processor;
- means for calculating a second identifier based on the input data;
- means for conducting a first operation comparing the second identifier with the first identifier;
- means for obtaining a modified first identifier from the master processor;
- means for conducting a second operation comparing the second identifier with the modified first identifier;
- and
- means for conveying a result of the first operation and a result of the second operation to the master processor.
Dependencies are inferred from the claim text.