1
Mette Vesterager Petersen, Hans Martin Boesgaard Sorensen: Methods for improving unpredictability of output of pseudo-random number generators. Harness Dickey & Pierce, May 6, 2004: US20040086117-A1

A method for performing computations in a mathematical system which exhibits a positive Lyapunov exponent, or exhibits chaotic behavior, comprises varying a parameter of the system. When employed in cryptography, such as, e.g., in a pseudo-random number generator of a stream-cipher algorithm, in a b ...


2
Mette Vesterager Petersen, Hans Martin Boesgaard Sorensen: Method of generating pseudo-random numbers in an electronic device, and a method of encrypting and decrypting electronic data. Harness Dickey & Pierce, October 24, 2002: US20020154769-A1

A method of performing numerical computations in a mathematical system with at least one function, including expressing the mathematical system in discrete terms, expressing at least one variable of the mathematical system as a fixed-point number, performing the computations in such a way that the c ...


3
Hans Martin Boesgaard Sorensen: Methods for Generating Identification Values for Identifying Electronic Messages. Harness Dickey & Pierce, November 29, 2007: US20070277043-A1

In a method for generating an identification value for identifying an electronic message by application of a first hash function with fixed compression that compresses n blocks of data into a number of blocks, which is smaller than n, the hash function is repetitively applied in a tree-structure com ...


4
Hans Martin Boesgaard Sorensen: Fabrication of computer executable program files from source code. Harness Dickey & Pierce, October 1, 2009: US20090249492-A1

A method for protecting a computer program against manipulation and for shielding its communication with other programs against eavesdropping and modification is presented. The method comprises the creation of individualized program copies to different groups of users, the insertion of or the deriva ...



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