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GEM: A Generic Chosen-Ciphertext Secure Encryption Method
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CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
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CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
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PKC '02 Proceedings of the 5th International Workshop on Practice and Theory in Public Key Cryptosystems: Public Key Cryptography
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PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
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EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
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EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
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EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Using hash functions as a hedge against chosen ciphertext attack
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
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This paper shows the first practical semantically secure public-key encryption scheme such that its one-wayness is equivalent to general factoring in the standard model [in the sense of indistinguishability against chosen-plaintext attack (IND-CPA)]. Next our proof technique is applied to the Rabin-Paillier encryption scheme and a variant of the RSA-Paillier encryption scheme to prove their one-wayness under the factoring assumption via tight security reductions.