Single Password Authentication

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Provided by: Microsoft
Topic: Security
Format: PDF
Users frequently reuse their passwords when authenticating to various online services. Combined with the use of weak passwords or honeypot/phishing attacks, this brings high risks to the security of the user's account information. In this paper, the authors propose several protocols that can allow a user to use a single password to authenticate to multiple services securely. All their constructions provably protect the user from dictionary attacks on the password, and cross-site impersonation or honeypot attacks by the online service providers.
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