STRONG AUTHENTICATION TOKEN USABLE WITH A PLURALITY OF INDEPENDENT APPLICATION PROVIDERS

摘要

The present invention defines a strong authentication token for generating different dynamic credentials for different application providers comprising an input interface providing an output representing an application provider indicator; a secret key storage for storing one or more secret keys; a variability source for providing a dynamic variable value; a key providing agent for providing an application provider specific key as a function of said application provider indicator using one or more keys stored in said secret key storage; a cryptographic agent for cryptographically combining said application provider specific key with said dynamic variable value using symmetric cryptography; a transformation agent coupled to said cryptographic agent for transforming an output of said cryptographic agent to produce a dynamic credential; and an output interface to output said dynamic credential.