Patent ID: 9305173
Filing Date: 2016-04-05
CPC Classification: G06F,H04L

Claim Text:
1. A portable security device removably coupled to a computer system for selectively authorizing the computer system to use multiple items of protected information, comprising: a processing unit; at least one storage medium coupled to the processing unit; an interface that receives multiple key selectors that are associated with respective ones of the multiple items of protected information, wherein the multiple key selectors are stored within the at least one storage medium; and wherein the multiple items of protected information have been protected using encryption keys that are mathematically derived from respective ones of the key selectors that are associated with the multiple items of protected information; and an interface program that selectively authorizes use of a particular one of the items of protected information on the computer system, only if a corresponding one of the key selectors is stored in the storage medium, by generating one of the encryption keys within the portable security device from the corresponding one of the key selectors, the interface program further sending the encryption key to the computer system to authorize of the computer system to use the particular one of the items of protected information associated with the corresponding one of the key selectors.