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Time-based one-time password. Time-based one-time password (TOTP) is a computer algorithm that generates a one-time password (OTP) using the 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 Task Force (IETF) standard RFC 6238. [1] TOTP is ...
Draw-a-Secret (DAS) Draw-a-Secret is a type of graphical password that requires the user to draw a picture over a grid. The user must exactly remember the user-drawn gestures in order to be authenticated. [citation needed] A larger stroke count corresponds with an increase in security, since it is harder for an attacker to copy the strokes and ...
Authentication, authorization, and accounting. Authentication, authorization, and accounting (AAA) is a framework used to control and track access within a computer network. Authentication is concerned with proving identity, authorization with granting permissions, accounting with maintaining a continuous and robust audit trail via logging.
MasterCard SecureCode uses OTAC to confirm a user's identity One time authorization code as used in Yammer's desktop client. A one-time password (OTP), also known as a one-time PIN, one-time passcode, one-time authorization code (OTAC) or dynamic password, is a password that is valid for only one login session or transaction, on a computer system or other digital device.
A user wielding a user agent (usually a web browser) is called the subject in SAML-based single sign-on. The user requests a web resource protected by a SAML service provider. The service provider, wishing to know the identity of the user, issues an authentication request to a SAML identity provider through the user agent.
PHP Programming at Wikibooks. PHP is a general-purpose scripting language geared towards web development. [ 9 ] It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1993 and released in 1995. [ 10 ][ 11 ] The PHP reference implementation is now produced by the PHP Group. [ 12 ]
SAML-based products and services. Security Assertion Markup Language (SAML) is a set of specifications that encompasses the XML -format for security tokens containing assertions to pass information about a user and protocols and profiles to implement authentication and authorization scenarios. This article has a focus on software and services ...
The simplest example of a challenge-response protocol is password authentication, where the challenge is asking for the password and the valid response is the correct password. An adversary who can eavesdrop on a password authentication can then authenticate itself by reusing the intercepted password. One solution is to issue multiple passwords ...