One-Time Password

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(security)

One-Time Password - (OTP) A security system that requires a new password every time a user authenticates themselves, thus protecting against an intruder replaying an intercepted password. OTP generates passwords using either the MD4 or MD5 hashing algorithms.

The equivalent term "S/Key", developed by Bellcore, is a trademark of Telcordia Technologies, so the name OTP is used increasingly.

See RFC 1760 - "The S/KEY One-Time Password System" and RFC 1938 - "A One-Time Password System".

http://cs.umd.edu/~harry/jotp/.

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No references found			lt;p>Incidents such as these highlight the need for companies to use multi-factor authentication for controlling access to critical accounts, said Lawrence Levine, president of FireID, a South Africa-based vendor that sells a phone-based, one-time password product. PayChoice breached for the second time this month by Network World Middle East The security of the system could be immediately improved by replacing these with one-time passwords or PINs. A "gotcha" in online payment security by Dan Raywood / SC Magazine [ILLUSTRATION OMITTED] To protect identities and manage access, the MobiSecure USBToken uses a one-time password authentication in a driverless, portable USB device. One-time password token by Communications News			one-point compactification one-point perspective one-pour system one-quadrant multiplier one-room cottage one-room plan one-room schoolhouse one-sample problem one-shot molding one-shot multivibrator one-shot operation one-sided one-sided abrupt junction one-sided acceptance sampling test one-sided connection one-sided limit One-Sided Surface one-sided test One-Size Stretch Knits One-Step one-step operation one-tail test one-tailed test one-time fuse one-time pad One-Time Password one-to-many correspondence one-to-one one-to-one assembler One-to-One Correspondence one-to-one mapping one-to-one translator one-valued function one-way classification One-Way Communication one-way coupling one-way function one-way hash function one-way joist construction one-way slab one-way system one-way throw One-Way Traffic one-way trunk one-year ice Onega Onega Bay Onega Coast Onega Military Flotilla Onega Petroglyphs Onega River			One-Stop Shop one-stop shopping one-stop shopping strategy One-Stop Shops One-Stop-Shop for Accessible Tourism in Europe One-Symbol Look-Ahead one-tail test one-tailed One-Tailed Kyuubi One-tailed test One-tailed test One-take One-take One-take One-take One-take one-ten-thousandth one-tenth one-third one-thirty-second one-thousandth one-time one-time One-Time Charge one-time fuse One-Time Issuance One-time key one-time mortgage insurance premium One-time pad one-time pads One-Time Password One-Time Password in Everything One-Time Password Specification One-time programmable One-Time Requisition Quantity one-time source One-time system One-time tape One-time tape One-Time Use One-Time Waiver one-timer one-timer one-to-many correspondence One-to-Many relationship one-to-one one-to-one one-to-one One-to-one and onto One-to-one and onto one-to-one assembler one-to-one care One-to-one correspondence One-to-one correspondence one-to-one mapping one-to-one marketing one-to-one marketing One-To-One Relationship One-To-One Relationship one-to-one translator one-to-ones

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