Method for providing a roving software license from one node to

Details Method for providing a roving software license from one node to Method for providing a roving software license from one node to

1995-06-07

1996-10-22

Cain, David C.

Cryptography

Cryptanalysis

380 23, 380 30, H04K 100

Patent

active

055685528

ABSTRACT:
An integrated circuit component for enforcing licensing restrictions. Such enforcement is performed through remote transmission of access privileges for executing a licensed program from the integrated circuit component to another similar component. The integrated circuit component comprising a non-volatile memory for storing a uniquely designated key pair, an authentication device certificate and a manufacturer public key along with cryptographic algorithms, a processor for executing the cryptographic algorithms in order to process information inputted into the integrated circuit component and for transmitting the processed information into volatile memory and a random number generator for generating the uniquely designated key pair internally within the integrated circuit component.

REFERENCES:
patent: 4658093 (1987-04-01), Hellman
patent: 4807288 (1989-02-01), Ugon, et al.
Struif, Bruno "The Use of Chipcards for Electronic Signatures and Encryption" in: Proceedings for the 1989 Conference on VLSI and Computer Peripherals, IEEE Computer Society Press, 1989, pp. 4/155-4/158.
Dusse, Stephen R. and Burton S. Kaliski "A Cryptographic Library for the Motorola 56000" in: Damgard, I. M., Advances in Cryptology-Proceedings EUROCRYPT 90, Springer-Verlag, 1991, pp. 230-244.
DSP56000/DSP56001 Digital Signal Processor User-s Manual, Motorola, 1990, p. 2-2.

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