Project Description

Encryption schemes are a cornerstone of contemporary cryptography. However, they only decrypt in an all-or-nothing fashion. Functional encryption is a new paradigm. Users are entitled to decrypt partial views of the message plaintext. For example, one can encode an access policy into the decryption key. When ciphertexts are downloaded, only users with a compliant decryption key may decrypt message plaintext. On the other hand, users with a bad decryption learn no information.

Although some significant process has been made, functional encryption has not obtained the maturity of classical encryption. It is an open question to design functional encryption systems that support a rich class of functions, efficiency and a security notion suitable for practice. 

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