SafeSlinger: Easy-to-Use and Secure Public-Key Exchange

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Executive Summary

Users regularly experience a crisis of confidence on the internet. Is that email or instant message truly originating from the claimed individual? Such doubts are commonly resolved through a leap of faith, expressing the desperation and helplessness of users. To establish a secure basis for online communication, the authors propose SafeSlinger, a system leveraging the proliferation of Smartphones to enable people to securely and privately exchange their public keys. Through the exchanged authentic public keys, SafeSlinger establishes a secure channel offering secrecy and authenticity, which they use to support secure messaging and file exchange. SafeSlinger also provides an API for importing applications' public keys into a user's contact information.

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