Method to ensure data integrity in a telecommunications network

Details Method to ensure data integrity in a telecommunications network Method to ensure data integrity in a telecommunications network

1994-03-03

1996-07-23

Envall, Jr., Roy N.

Excavating

3647461, G06F 1110, G06F 700, G06F 1500, H03M 1300

Patent

active

055397565

ABSTRACT:
A method and an apparatus for calculating and checking the Frame Check Sequence (FCS) of a message comprising a sequence of data bytes. A Cyclic Redundancy Code (CRC) is used to generate the FCS at one end and check the message at the other end. For each new byte of the sequence of data bytes, the current FCS, which is a vector of the Galois Field is multiplied by .alpha..sup.8, another vector of the Galois Field.

REFERENCES:
patent: 4720830 (1988-01-01), Joshi et al.
patent: 5062111 (1991-10-01), Gotou et al.
IBM Tech. Disc. Bulletin, vol. 30, No. 12, May 1988, New York, US, pp. 458-464 "Method to Proivde Software Calculation of a 32-Bit Frame Check Sequence, A Byte at a Time", p. 462, line 12-p. 464, line 36.
IEEE MIcro, vol. 3, No. 3, Jun. 1983, New York, US. pp. 40-50, by A. Perez: "Byte-Wise CRC Calculations" Abstract, p. 44, right column line 6-p. 45, right column, line 5.

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