Authentication methods

Microsoft Account or MSA (previously known as Microsoft Passport, .NET Passport, Microsoft Passport Network, and Windows Live ID) is a single sign-on web service developed and provided by Microsoft that allows users to log in to websites (like Outlook.com), devices (e.g. Windows 10 computers and tablets, or Windows Phones), and applications (including Visual Studio) using one account.

SQRL or Secure, Quick, Reliable Login (pronounced "squirrel" /ˈskwɝl/ ) (formerly Secure QR Login) is a draft open standard for secure website login and authentication.

A biometric passport, also known as an e-passport, ePassport or a digital passport, is a combined paper and electronic passport that contains biometric information that can be used to authenticate the identity of travelers.

A seal is a device for making an impression in wax, clay, paper, or some other medium, including an embossment on paper, and is also the impression thus made.

Password strength is a measure of the effectiveness of a password in resisting guessing and brute-force attacks.

Authentication (from Greek: αὐθεντικός authentikos, "real, genuine", from αὐθέντης authentes, "author") is the act of confirming the truth of an attribute of a single piece of data (a datum) claimed true by an entity.

Identification, friend or foe (IFF) is an identification system designed for command and control.

Extensible Authentication Protocol, or EAP, is an authentication framework frequently used in wireless networks and point-to-point connections.

A smart card, chip card, or integrated circuit card (ICC) is any pocket-sized card that has embedded integrated circuits.

Google Friend Connect was a free social networking site from 2008 to 2012.

Higgins is an open source project dedicated to giving individuals more control over their personal identity, profile and social network data.

A digital watermark is a kind of marker covertly embedded in a noise-tolerant signal such as an audio, video or image data.

A one-time password (OTP) is a password that is valid for only one login session or transaction, on a computer system or other digital device.

A signature (shwetha; from Latin: signare, "to sign") is a handwritten (and often stylized) depiction of someone's name, nickname, or even a simple "X" or other mark that a person writes on documents as a proof of identity and intent.

A kaō or huāyā is a stylized signature or a mark used in east Asia in place of a true signature.

Kerberos /ˈkərbərɒs/ is a computer network authentication protocol that works on the basis of 'tickets' to allow nodes communicating over a non-secure network to prove their identity to one another in a secure manner.

The Malaysian identity card (Malay: kad pengenalan Malaysia), is the compulsory identity card for Malaysian citizens aged 12 and above.

privacyIDEA is a Two Factor Authentication System which is multi-tenency- and multi-instance-capable.

LinOTP is a Linux-based solution to manage authentication devices for two-factor authentication with one time passwords.

Nok Nok Labs is a venture-backed company located in Palo Alto, California that develops software to enable strong authentication for consumer-facing mobile and web applications.

FreeOTP is a soft token authenticator that can be used for two-factor authentication.

Handwritten biometrics can be split into two main categories: Static: In this mode, users writes on paper, digitize it through an optical scanner or a camera, and the biometric system recognizes the text analyzing its shape.

(Main articles: Passports of the European Union and Passports of the European Economic Area) Since the 1980s, European Economic Area member states have started to harmonise the following aspects of the designs of their ordinary passports which have been reflected on the designs and features of the candidate countries' passports:

multiOTP is an open source PHP class, a command line tool and a web interface that can be used to provide an operating system independent strong authentication system.

The FIDO ("Fast IDentity Online") Alliance is an industry consortium launched in February 2013 to address the lack of interoperability among strong authentication devices and the problems users face creating and remembering multiple usernames and passwords.

Microprinting is the production of recognizable patterns or characters on a printed medium at a scale which requires magnification to be read.

An electronic signature, or e-signature, refers to data in electronic form, which is logically associated with other data in electronic form and which is used by the signatory to sign.

Below are listed various examples of words and phrases that have been identified as shibboleths, a word or custom whose variations in pronunciation or style can be used to differentiate members of ingroups from those of outgroups.

In computer security, logging in, (or logging on or signing in or signing on), is the process by which an individual gains access to a computer system by identifying and authenticating themselves.

Automatic number plate recognition (ANPR; see also below) is a technology that uses optical character recognition on images to read vehicle registration plates.

Idex ASA (Oslo Stock Exchange : IDEX) is a Norwegian biometrics company, specialising in fingerprint imaging and fingerprint recognition technology.