Black-box circular-secure encryption beyond affine functions

    TCC'11 Proceedings of the 8th conference on Theory of cryptography, pp. 201-218, 2011.

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    Keywords:
    weak keydegree-d polynomialaffine functionamplifies kdm securityblack-box circular-secure encryptionMore(10+)

    Abstract:

    We show how to achieve public-key encryption schemes that can securely encrypt nonlinear functions of their own secret key. Specifically, we show that for any constant d ε N, there exists a public-key encryption scheme that can securely encrypt any function f of its own secret key, assuming f can be expressed as a polynomial of total degr...More

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