(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 MD5hashiNgalgorithms. 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". . (2000-01-31)
