Method for numerically scrambling data and its application to a

Details Method for numerically scrambling data and its application to a Method for numerically scrambling data and its application to a

1995-07-31

1998-12-15

Gregory, Bernarr E.

Cryptography

Electric signal modification

Having production of printed copy

380 9, 380 28, 380 49, 380 59, H04L 900

Patent

active

058504524

ABSTRACT:
The present invention concerns a method for the numerical scrambling by permutation of data bits in a programmable circuit comprising a control unit and at least one data bus (DBUS) to transmit data between the control unit and several memory circuits. It consists of having data on the bus either in a scrambled form or in an unscrambled form according to whether it is instructions data or not. And data in some of the memories is scrambled. The present invention also concerns a method for realising a permutation circuit.

REFERENCES:
patent: 3958081 (1976-05-01), Ehrsam et al.
patent: 3962539 (1976-06-01), Ehrsam et al.
patent: 4172213 (1979-10-01), Barnes et al.
patent: 4203166 (1980-05-01), Ehrsam et al.
patent: 4278837 (1981-07-01), Best
patent: 4633388 (1986-12-01), Chiu
patent: 5095525 (1992-03-01), Almgren et al.
"Cell Design for Multiple Logic Circuit Families," IBM Technical Disclosure Bulletin, vol. 33, No. 1B, Jun. 1990, pp. 323-324.

Affiliated with

Also associated with

Rating

Method for numerically scrambling data and its application to a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for numerically scrambling data and its application to a , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for numerically scrambling data and its application to a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1463382