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Chosen-Ciphertext Secure Certificateless Proxy Re-Encryption

Abstract : In this paper we introduce the notion of certificateless proxy re-encryption and also give precise definitions for secure certificateless proxy re-encryption schemes. We present a concrete scheme based on bilinear pairing, which enjoys the advantages of certificateless public key cryptography while providing the functionalities of proxy re-encryption. Moreover, the proposed scheme is unidirectional and compatible with current certificateless encryption deployments. Finally, we show that our scheme has chosen ciphertext security in the random oracle model.
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Chul Sur, Chae Duk Jung, Youngho Park, Kyung Hyune Rhee. Chosen-Ciphertext Secure Certificateless Proxy Re-Encryption. 11th IFIP TC 6/TC 11 International Conference on Communications and Multimedia Security (CMS), May 2010, Linz, Austria. pp.214-232, ⟨10.1007/978-3-642-13241-4_20⟩. ⟨hal-01056377⟩



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