A METHOD OF GENERATING ARBITRARY NUMBERS GIVEN A SEED
摘要
<p>The invention provides a method of generating arbitrary numbers given a seed, characterized by providing a challenge derived from the seed to a physical token, receiving an initial response from the physical token, combining the initial response with helper data associated with the challenge to produce a stable response, and generating the arbitrary numbers using a pseudo-random number generator using the stable response as a seed for the generator. Preferably one or more of these pseudo-random permutations are used as one or more round function(s) in a Feistel block cipher. The generated arbitrary numbers may also be used to create a cryptographic key.</p>
申请公布号
WO2008065596(A1)
申请公布日期
2008.06.05
申请号
WO2007IB54784
申请日期
2007.11.26
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;KERINS, TIMOTHY;KURSAWE, KLAUS;TUYLS, PIM, T.