Overview
All data
3 statements · 0% with external sources · numbers in brackets are citations
On other databases
2 identifiers linking HMAC-based One-time Password Algorithm across the web's reference databases
3 statements · 0% with external sources · numbers in brackets are citations
2 identifiers linking HMAC-based One-time Password Algorithm across the web's reference databases
From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0
HMAC-based one-time password (HOTP) is a cryptographic algorithm based on a one-time password (OTP) and hash-based message authentication code (HMAC). At setup time, a client and server share a secret and other initialization settings. In future exchanges, when a client attempts to access a server, a challenge is sent from the server to the client and the client then uses the previously exchanged secret and computes a value to be used as the server's challenge response.