current time as a source of uniqueness. As an extension of the HMAC-based one-time password algorithm (HOTP), 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...

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...

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

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

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...

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

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...

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...

to decrypt the passwords. Prior to June 2012, customers had by default a single PBKDF2-HMAC-SHA-256 hash applied to their master password, with site usernames...

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...

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

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...

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

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

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

Encryption Standard International Data Encryption Algorithm HMAC HMAC-based One-time Password algorithm Cryptographic hash function Hash collision List...

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...

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

access authentication is one of the agreed-upon methods a web server can use to negotiate credentials, such as username or password, with a user's web browser...

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...

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

possibly weak key, typically a password or passphrase, more secure against a brute-force attack by increasing the resources (time and possibly space) it takes...

and password) for this access to these computers across a public network in an unsecured way, poses a great risk of 3rd parties obtaining the password and...

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

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...

authentication code: a keyed hash function like hash message authentication code (HMAC). That is, SHA is designed so that it is difficult for an attacker to find...

certainly do not have. So far, no practical attack has been based on this property, but one should be aware of this "feature". The fixed-points can be...