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What is authentication explain the challenge response method of authentication?
In computer security, challenge-response authentication is a set of protocols used to protect digital assets and services from unauthorized users, programs or activities. While challenge-response authentication can be as simple as a password, it can also be as dynamic as a randomly generated request.
Which of the following can be used for challenge response authentication?
Biometric systems are another form of challenge-response authentication. In cryptography, zero-knowledge password proof and key agreement systems such as secure remote password, CRAM-MD5 and secure shell’s challenge-response system based on RSA are considered to be very sophisticated challenge-response algorithms.
What is the 20/20 Tip challenge?
The “2020 Tip Challenge” is a reference to a tipping trend that started in January 2020 in Michigan, when a server at Thunder Bay River Restaurant received a $2,020 tip on a $23 bill.
When to use an authentication challenge in ASP.NET?
An authentication challenge is invoked by Authorization when an unauthenticated user requests an endpoint that requires authentication. An authentication challenge is issued, for example, when an anonymous user requests a restricted resource or clicks on a login link.
How is mutual authentication performed in Challenge Handshake?
Mutual authentication is performed using a challenge–response handshake in both directions; the server ensures that the client knows the secret, and the client also ensures that the server knows the secret, which protects against a rogue server impersonating the real server.
When to use an authentication scheme other than basic?
If a resource needs to be protected, strongly consider using an authentication scheme other than basic authentication. Digest authentication is a challenge-response scheme that is intended to replace Basic authentication. The server sends a string of random data called a nonce to the client as a challenge.
How does challenge response authentication help with encryption?
Challenge–response authentication can help solve the problem of exchanging session keys for encryption. Using a key derivation function, the challenge value and the secret may be combined to generate an unpredictable encryption key for the session.