The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 2016
Filed:
Feb. 24, 2012
Ari Juels, Brookline, MA (US);
Nikolaos Triandopoulos, Arlington, MA (US);
Marten Erik Van Dijk, Somerville, MA (US);
Ronald Rivest, Arlington, MA (US);
Ari Juels, Brookline, MA (US);
Nikolaos Triandopoulos, Arlington, MA (US);
Marten Erik van Dijk, Somerville, MA (US);
Ronald Rivest, Arlington, MA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
Methods and apparatus are provided for silent alarm channels using one-time passcode authentication tokens. A message is transmitted indicating a potential attack on a protected resource by obtaining the message; combining the message with a tokencode generated by a security token to generate a one-time passcode; and transmitting the one-time passcode to a receiver. A plurality of the messages can be obtained in parallel, and the plurality of parallel messages can be combined with the tokencode to generate the one-time passcode. A subsequent message can optionally be generated by applying a hash function to a prior n-bit value to provide a counter identifying each message. The message optionally also comprises one or more additional bits to provide an annotation of the message.