Accelerated throughput synchronized word stream cipher,...

Details Accelerated throughput synchronized word stream cipher,... Accelerated throughput synchronized word stream cipher,...

2005-04-21

2010-11-02

Ngo, Chuong D (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

C708S252000

Reexamination Certificate

active

07827223

ABSTRACT:
Systems and methods are disclosed, especially designed for very compact hardware implementations, to generate random number strings with a high level of entropy at maximum speed. For immediate deployment of software implementations, certain permutations have been introduced to maintain the same level of unpredictability which is more amenable to hi-level software programming, with a small time loss on hardware execution; typically when hardware devices communicate with software implementations. Particular attention has been paid to maintain maximum correlation immunity, and to maximize non-linearity of the output sequence. Good stream ciphers are based on random generators which have a large number of secured internal binary variables, which lead to the page synchronized stream ciphering. The method for parsed page synchronization which is presented is especially valuable for Internet applications, where occasionally frame sequences are often mixed. The large number of internal variables with fast diffusion of individual bits wherein the masked message is fed back into the machine variables is potentially ideal for message authentication procedures.

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Texas Instrument's OMAP Preliminary User's Manual Security Features, Jan. 2001, particularly Fig. 7-15, “OMAP” p. 7-41.

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