current time as a source of uniqueness. As an extension of the HMAC-based one-time password (HOTP) algorithm, it has been adopted as Internet Engineering...

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

In cryptography, an HMAC (sometimes expanded as either keyed-hash message authentication code or hash-based message authentication code) is a specific...

time-based one-time password (TOTP; specified in RFC 6238) and HMAC-based one-time password (HOTP; specified in RFC 4226), for authenticating users of software...

generate one-time passwords for two-factor authentication (2FA) systems using the time-based one-time password (TOTP) or the HMAC-based one-time password (HOTP)...

support. The YubiKey implements the HMAC-based one-time password algorithm (HOTP) and the time-based one-time password algorithm (TOTP), and identifies itself...

Live Streaming HMA—High Memory Area HMAC—Hash-based message authentication code HOTP—HMAC-based one-time password HP—Hewlett-Packard HPC—High-Performance...

employ a mixture of both. HOTP: An HMAC-based one-time password algorithm (RFC 4226) TOTP: Time-based one-time password algorithm (RFC 6238) OCRA: OATH Challenge-Response...

keypresses. HMAC-based one-time password employed widely in multi-factor authentication uses similar approach, but with pre-shared secret key and HMAC instead...

One-time passwords are similar to TANs and used as a secondary security measure in addition to ordinary passwords. Nitrokey supports the HMAC-based One-time...

PBKDF2 for password hashing. PBKDF2 applies a pseudorandom function, such as hash-based message authentication code (HMAC), to the input password or passphrase...

signing arbitrary data. This is used as the basis for a variety of web-based technologies including JSON Web Token. JWS is a way to ensure integrity...

salt is random data fed as an additional input to a one-way function that hashes data, a password or passphrase. Salting helps defend against attacks...

portal Linux portal One-time passwords HMAC-based one-time password (HOTP) OPIE Authentication System OTPW Time-based one-time password (TOTP) Tokens Initiative...

pre-shared keys, certificate-based, and username/password-based authentication. Preshared secret key is the easiest, and certificate-based is the most robust and...

using a Password-Based Key Derivation Function (PBKDF) with an approved Pseudorandom Function such as HMAC with SHA-3 as the hash function of the HMAC. The...

standards grew out of this work, the HMAC-based One-time Password (HOTP) algorithm and the Time-based One-time Password (TOTP) algorithm specified by RFC 4226...

Channel Binding Hash Agility RFC 6560 One-Time Password (OTP) Pre-Authentication RFC 6649 Deprecate DES, RC4-HMAC-EXP, and Other Weak Cryptographic Algorithms...

using the HMAC-SHA256 algorithm. It is later converted to a character string using the password templates. The template seed makes every password unique...

property can be used to break naive authentication schemes based on hash functions. The HMAC construction works around these problems. In practice, collision...

a key derivation function that was selected as the winner of the 2015 Password Hashing Competition. It was designed by Alex Biryukov, Daniel Dinu, and...

16-byte HMAC-MD5 hash of the server challenge, a fully/partially randomly generated client challenge, and an HMAC-MD5 hash of the user's password and other...

competition RFC 3874: "A 224-bit One-way Hash Function: SHA-224" RFC 6234: "US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)"; contains sample C...

cracking password hashes. Passwords are typically stored not in plain text form, but as hash values. If such a database of hashed passwords falls into...

Cryptographic Service Provider HMAC HMAC-based One-time Password algorithm Cryptographic hash function Hash collision Hash-based cryptography Cryptographic...

password) for this access to these computers across a public network in an unsecured way poses a great risk of third parties obtaining the password and...

bcrypt is a password-hashing function designed by Niels Provos and David Mazières. It is based on the Blowfish cipher and presented at USENIX in 1999....

cryptanalysis • Hill cipher • History of cryptography • HMAC • HMAC-based One-time Password algorithm (HOTP) • Horst Feistel • Howard Heys • Https •...

generated randomly, or it may be derived from the session token using HMAC: csrf_token = HMAC(session_token, application_secret) The CSRF token cookie must not...

(Proposed|Historic) — HMAC-SHA-2 Authentication Protocols in the User-based Security Model (USM) for SNMPv3 RFC 7860 (Proposed) — HMAC-SHA-2 Authentication...