Data scrambling method, data scrambling apparatus, data descramb

Details Data scrambling method, data scrambling apparatus, data descramb Data scrambling method, data scrambling apparatus, data descramb

1998-06-30

1999-10-12

Hayes, Gail O.

Cryptography

Particular algorithmic function encoding

380 9, 380 49, 380 42, H04L 900

Patent

active

059664479

ABSTRACT:
A method and apparatus for descrambling data that is characterized by shift registers that realize an operation of generating polynomial and that have a ring-shaped structure that realizes plural and continuous operation. The method and apparatus further includes an initial value setting means for setting initial values in m shift registers; after setting the initial values, shifting the initial values while synchronizing the initial values with input clocks, and outputting the exclusive OR of data which is input while being synchronized with clocks and the lowermost latch outputs. Scrambled data with a byte is treated as a unit by using an exclusive OR circuit block.

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