What is a challenge mechanism?

Challenge Response Authentication Mechanism (CRAM) is the most often used way to authenticate actions. They are a group of protocols in which one side presents a challenge(to be answered) and the other side must present a correct answer(to be checked/validated) to the challenge in order to get authenticated.

1. What is the purpose of a challenge response mechanism?
2. What is a challenge response system?
3. What is a server challenge?
4. Which type of password is based on token and uses a challenge response mechanism?
5. What does challenge sent mean?
6. How does challenge response authentication work?
7. What is MD5 challenge response?
8. What is the challenge response psychology?
9. What is a challenge nonce?
10. What is challenge response token?
11. How is a challenge response protocol utilized with token device implementations?
12. What is YubiKey challenge response?
13. What is the difference between challenge and dispute?
14. What is credit dispute?

What is the purpose of a challenge response mechanism?

Challenge-response is a barrier used to protect assets from unauthorized users, activities, programs and internet of things (IoT) devices. It forces cyber attackers to satisfy a potential series of challenges in order to bypass the security barrier and access further materials.

What is a challenge response system?

In computer security, challenge–response authentication is a family of protocols in which one party presents a question ("challenge") and another party must provide a valid answer ("response") to be authenticated.

What is a server challenge?

When a user logs on, the network access server (NAS), wireless access point or authentication server creates a "challenge," which is typically a random number sent to the client machine. ... If they match, the authentication system has verified that the user has the correct password.

Which type of password is based on token and uses a challenge response mechanism?

Asynchronous password generators have an authentication server that generates a challenge which is encrypted using a private key.

What does challenge sent mean?

When a user logs on, the network access server (NAS), wireless access point or authentication server creates a "challenge," which is typically a random number sent to the client machine. ... If they match, the authentication system has verified that the user has the correct password.

How does challenge response authentication work?

Challenge-response authentication uses a cryptographic protocol that allows to prove that the user knows the password without revealing the password itself. ... It then computes the response by applying a cryptographic hash function to the server challenge combined with the user's password.

What is MD5 challenge response?

In EAP MD5-Challenge, the RADIUS server sends a random challenge to the client. The client forms an MD5 hash of the user's password and the challenge and sends the result back to the server. The server then validates the MD5 hash using the known correct plaintext password from the user database.

What is the challenge response psychology?

Challenge Response: How you think about stress matters enormously in terms of how you process it. ... In fact, people who are able to think about stress more like a challenge and less like a threat report less depression and anxiety, higher levels of energy, work performance, and life satisfaction.

What is a challenge nonce?

A value used in security protocols that is never repeated with the same key. For example, nonces used as challenges in challenge-response authentication protocols are not repeated until the authentication keys are changed.

What is challenge response token?

Challenge Response Security Token. SolidPass is a security token that supports Challenge Response Authentication. A challenge response is a series of steps in which one party presents a question ("challenge") and another party must provide a valid answer ("response") in order to be verified or authenticated.

How is a challenge response protocol utilized with token device implementations?

How is a challenge/response protocol utilized with token device implementations? This protocol is not used; cryptography is used. The token challenges the user for a username and password. An authentication service generates a challenge, and the smart token generates a response based on the challenge.

What is YubiKey challenge response?

The YubiKey supports two methods for Challenge-Response: HMAC-SHA1 and Yubico OTP. HMAC-SHA1 takes a string as a challenge and returns a response created by hashing the string with a stored secret. Yubico OTP takes a challenge and returns a Yubico OTP code based on it encrypted with a stored AES key.

What is the difference between challenge and dispute?

As nouns the difference between dispute and challenge

is that dispute is an argument or disagreement, a failure to agree while challenge is an instigation or antagonization intended to convince a person to perform an action they otherwise would not.

What is credit dispute?

A credit dispute is an inquiry sent to a credit bureau about an error on your credit report. ... If you do find a mistake—especially one that's hurting your credit score—you can send a credit dispute to the credit bureaus.