Electronic Circuit Arrangement and Method of Operating Such Electronic Circuit
AssigneeNXP B.V.
InventorJuergen Schroeder
Life of this patent
Estimating the term…
Abstract
In order to provide an electronic circuit arrangement (100) comprising at least one random number generating unit (10) for generating at least one random number (RN; RN1), wherein a calculation or estimation of the random numbers (RN; RN1) used in software (20) is not possible, especially not by physical measuring methods, at least one additional or second random number generating unit (12) for generating at least one additional or second random number (RN2) is proposed.
Claims10
An electronic circuit arrangement comprising at least one random number generating unit for generating at least one random number, characterized by at least one additional or second random number generating unit for generating at least one additional or second random number.
A method for operating an electronic circuit arrangement by which at least one random number is generated, characterized by generating at least one additional or second random number.
Use of at least one electronic circuit arrangement (100) according to claim
- for the on-chip generation of at least one key, in particular of at least one secret key,
- for the authentication of at least one electronic data carrier, in particular of at least one chip card, for example of at least one smart card, and of at least one terminal,
- for security functions, such as for randomizing of at least one cycle of at least one central processing unit,
- for adding additional wait states,
- for randomized branching in the execution of at least one program, and/or
- as at least one memory scramble value.
Dependencies are inferred from the claim text.