It’s a hash-based message authentication code (HMAC) with the time-dependent counter as the message. A HMAC essentially appends a message to your secret key and hashes them together, ...

The Initiative for Open Authentication‘s (Oath) Hashed Message Authentication Code (HMAC), a one-time password (OTP) proposal based on SHA-1, is being promoted as a key technology for broadening ...

♛ Key derivation and confirmation: 384-bit Hashed Message Authentication Mode (HMAC) with Secure Hash Algorithm (HMAC-SHA384) ... Tines has a better way -- no custom code required.

It also natively supports the SHA2-512 HMAC (Keyed-Hash Message Authentication Code), a cryptographic mechanism defined in RFC 2104. This depends on the core settings. This IP is appropriate for ...

FIPS 202-compliant SHA-3 algorithm for bidirectional authentication; FIPS 198-compliant keyed-hash message authentication code (HMAC) TRNG with NIST SP 800-90B compliant entropy source; I2C ...