Enhanced encryption method and system for ultra secure...

Details Enhanced encryption method and system for ultra secure... Enhanced encryption method and system for ultra secure...

2007-05-10

2010-11-09

Chai, Longbit (Department: 2431)

Cryptography

Communication system using cryptography

Fiber optic network

C380S054000, C713S500000, C713S501000, C713S502000, C713S503000

Reexamination Certificate

active

07831049

ABSTRACT:
Techniques to bolster the security of an AlphaEta cryptosystem using spectral phase encoding. In one aspect, a spatial light modulator (SLM) is used to change the spectral code (spectral phase) of each optical bit in response to the output of an extended key generator based on a cryptographic algorithm. In other aspects, additional time and polarization modulations are used to maintain high security levels as well as good performance levels. Such methods are combined with traditional key generation methods such as key-distribution centers or one-way mathematical algorithms to bolster the security of traditional key generation as well.

REFERENCES:
patent: 7333611 (2008-02-01), Yuen et al.
patent: 7646980 (2010-01-01), Menendez
patent: 2008/0043871 (2008-02-01), Latouche et al.

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