Efficient identity-based encryption without random oracles

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Efficient identity-based encryption without random oracles (2005)

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by Brent Waters

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@INPROCEEDINGS{Waters05efficientidentity-based,
    author = {Brent Waters},
    title = {Efficient identity-based encryption without random oracles},
    booktitle = {},
    year = {2005},
    pages = {114--127},
    publisher = {Springer-Verlag}
}

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Abstract

We present the first efficient Identity-Based Encryption (IBE) scheme that is fully secure without random oracles. We first present our IBE construction and reduce the security of our scheme to the decisional Bilinear Diffie-Hellman (BDH) problem. Additionally, we show that our techniques can be used to build a new signature scheme that is secure under the computational Diffie-Hellman assumption without random oracles. 1

Keyphrases

random oracle efficient identity-based encryption ibe construction decisional bilinear diffie-hellman computational diffie-hellman assumption new signature scheme first efficient identity-based encryption

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