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Passwords play a critical role in online authentication. Unfortunately, passwords suffer from two seemingly intractable problems: password cracking and password theft. In this paper, the authors propose PasswordAgent, a new password hashing mechanism that utilizes both a salt repository and a browser plug-in to secure web logins with strong passwords. Password hashing is a technique that allows users to remember simple low-entropy passwords and have them hashed to create high-entropy secure passwords. PasswordAgent generates strong passwords by enhancing the hash function with a large random salt.
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