One Time Passwords (OTP) are often used in two-factor authentication systems, where a user must enter the value. One method is HOTP (-based OTP) uses a Hash-based Message Authentication Code (). The seed of HOTP is generated by a random key:
Posted 10 months ago (17 May 2023)
With a keyed-cryptography hash, we use a secret key to generate the hash of a message. This can produce a MAC (Message Authentication Code). One of the fastest keyed-hashing methods around is SipHash - created by JP Aumasson and Daniel J. Bernstein ()
Posted 2 years ago (12 June 2022)