Challenge-Response Authentication is a group or family of protocols in which one party, typically the server, presents a challenge to another party, typically the client. The second party must respond with the appropriate answer to be authenticated.
A simple example of Challenge Response Authentication is Security Questions. The challenge is from a server asking the user a question, the user must respond with the correct answer to the server so that the user can be served.
DualShield supports the following Challenge Response Authentication products
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