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For solving this authentication problem, Alice and Bob have agreed upon a password, which Alice knows, and which Bob knows how to verify. Now Alice could send her password over an unencrypted connection to Bob in a clear text form, for him to verify. That would however make the password accessible to Mallory, who is wiretapping the line.
It is common for a web application to store in a database the hash value of a user's password. Without a salt, a successful SQL injection attack may yield easily crackable passwords. Because many users re-use passwords for multiple sites, the use of a salt is an important component of overall web application security. [14]
The Secure Remote Password protocol (SRP) is an augmented password-authenticated key exchange (PAKE) protocol, specifically designed to work around existing patents. [1]Like all PAKE protocols, an eavesdropper or man in the middle cannot obtain enough information to be able to brute-force guess a password or apply a dictionary attack without further interactions with the parties for each guess.
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 authenticate themselves by reusing the intercepted password. One solution is to issue multiple passwords ...
Transport Layer Security Secure Remote Password (TLS-SRP) ciphersuites are a set of cryptographic protocols that provide secure communication based on passwords, using an SRP password-authenticated key exchange. There are two classes of TLS-SRP ciphersuites: The first class of cipher suites uses only SRP authentication.
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]
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They might be account numbers, passwords, certificates etc. As the credential represents some important information, the further interfaces might be useful for creating a proper and secure credential – javax.security.auth.Destroyable and javax.security.auth.Refreshable. Suppose that after the successful authentication of the user you populate ...