Patent ID: 9077710
Filing Date: 2015-07-07
Classification: G06F,H04L

Abstract:
1. A processing device implemented method for generating and storing a data set for a password, and for either authenticating a trial password, or for attempting to generate a cryptographic key, the method comprising: performing a first method; performing a second method only when a first subset of at least two distinct subsets of the data set is available; and performing a third method only when the first subset is not available and a second subset of the at least two distinct subsets of the data set is available, wherein: the first method comprises: the second method comprises: either or the third method comprises: either or each of the first method, the second method and the third method are performed by at least one respective processing device, the first subset is different from the second subset, the second method is different from the third method, and the second method is at least twice as fast as the third method.