Abstract: A system and method for authenticating an entity. A one time password is generated from an array populated with numbers by selecting an initial point in the array, implementing a jump procedure that specifies another location in the array, and then implementing a pick procedure that selects a set of numbers from the array. The set of numbers is stored as a one time password on a token. When the token is authenticated, the one time password is submitted to an Authorizer that stores the array, along with an identifier for the token. The Authorizer stores the initial point in the array from which the one time password was generated for the identified token. The Authorizer repeats the jump and pick procedures from the initial point for the identified token and produces a set of numbers. If the set of numbers so produced by the Authorizer matches the one time password from the token, then the token is successfully authenticated. Otherwise, the token is not successfully authenticated.

Abstract: A system and method for authenticating an entity. A one time password is generated from an array populated with numbers by selecting an initial point in the array, implementing a jump procedure that specifies another location in the array, and then implementing a pick procedure that selects a set of numbers from the array. The set of numbers is stored as a one time password on a token. When the token is authenticated, the one time password is submitted to an Authorizer that stores the array, along with an identifier for the token. The Authorizer stores the initial point in the array from which the one time password was generated for the identified token. The Authorizer repeats the jump and pick procedures from the initial point for the identified token and produces a set of numbers. If the set of numbers so produced by the Authorizer matches the one time password from the token, then the token is successfully authenticated. Otherwise, the token is not successfully authenticated.