Proof of execution using random function

Details Proof of execution using random function Proof of execution using random function

2011-01-25

2011-01-25

Moise, Emmanuel L (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S180000, C713S187000, C726S009000, C726S022000, C726S026000

Reexamination Certificate

active

07877604

ABSTRACT:
A physical random function (PUF) is a function that is easy to evaluate but hard to characterize. Controlled physical random functions (CPUFs) are PUFs that can only be accessed via a security program controlled by a security algorithm that is physically bound to the PUF in an inseparable way. CPUFs enable certified execution, where a certificate is produced that proves that a specific computation was carried out on a specific processor. The invention provides an additional layer for generating a proof of execution which any third party can verify. This proof of execution is also useful to provide secure memory and secure interruptible program execution.

REFERENCES:
patent: 2003/0041250 (2003-02-01), Proudler
patent: 2003/0204743 (2003-10-01), Devadas et al.

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