Emc Corporation

Daniel Bailey Vernon

William Duane

John Gordon Brainard

Michael J O'Malley

Robert S Philpott

A method, system, and apparatus for agile generation of one time passcodes (OTPs) in a security environment, the security environment having a token generator comprising a token generator algorithm and a validator, the method comprising generating a OTP at the token generator according to a variance technique; wherein the variance technique is selected from a set of variance techniques, receiving the OTP at a validator, determining, at the validator, the variance technique used by the token generator to generate the OTP, and determining whether to validate the OTP based on the OTP and variance technique.

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Pepperell, MA, United States of America

Daniel Bailey Vernon