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HOTP meaning in Computing ?

Answer» What is HMAC-based One-Time Password mean?

HMAC-based one-time password (HOTP) is a one-time password (OTP) algorithm based on hash-based message authentication codes (HMAC). It is a cornerstone of the Initiative for Open Authentication (OATH).

HOTP was published as an informational IETF RFC 4226 in December 2005, documenting the algorithm along with a Java implementation. Since then, the algorithm has been adopted by many companies worldwide (see below). The HOTP algorithm is a freely available open standard.

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