System and method for decryption in the symbol domain

Details System and method for decryption in the symbol domain System and method for decryption in the symbol domain

1997-10-17

2000-03-07

Swann, Tod R.

Cryptography

Particular algorithmic function encoding

380 49, H04L 918, H04L 928

Patent

active

060350407

ABSTRACT:
A method of decrypting data comprising encrypting bit-wise data, using a first plural bit mask, modulating the data into symbol format, and transmitting the symbol format data to a receiving apparatus, in a receiving apparatus, rotating a current received symbol sample by an amount equal to one of (i) its difference in phase from an immediately preceding received symbol sample toward the phase of the immediately preceding received symbol sample phase, and (ii) by an amount equal to estimated carrier phase towards zero phase, generating a second bit mask subset derived from values of the first bit mask, comprising plural bits for each symbol, reflecting the rotated symbol by a phase defined by the plural bits to form a symbol which is devoid of encryption, and providing the symbol devoid of encryption to a soft-decision decoder.

REFERENCES:
patent: 4052557 (1977-10-01), Chiu et al.
patent: 5375140 (1994-12-01), Bustamante et al.
patent: 5699434 (1997-12-01), Hogan
patent: 5828754 (1998-10-01), Hogan

Affiliated with

Also associated with

Rating

System and method for decryption in the symbol domain does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for decryption in the symbol domain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for decryption in the symbol domain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-370020