Other authentication mechanisms, such as the hash function message authentication code (HMAC) and digital signatures, have long been available.

Other authentication mechanisms, such as the hash function message authentication code (HMAC) and digital signatures, have long been available. CMAC is a new option, intended especially for ...

Most readers will have at some point received a two-factor authentication code delivered to them by SMS text message. Many apps and websites send the one-time codes to confirm that the person ...

Oath announced its initial effort, a hashed message authentication code (HMAC) one-time password (OTP) algorithm, in October at the Digital ID World show in Denver.