Securely combining public-key cryptosystems
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
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SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
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CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
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Proceedings of the 13th ACM conference on Computer and communications security
Secure attribute-based systems
Proceedings of the 13th ACM conference on Computer and communications security
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CRYPTO '09 Proceedings of the 29th Annual International Cryptology Conference on Advances in Cryptology
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ASIACCS '10 Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security
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EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
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CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
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CRYPTO'10 Proceedings of the 30th annual conference on Advances in cryptology
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SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
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CT-RSA'11 Proceedings of the 11th international conference on Topics in cryptology: CT-RSA 2011
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PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Generic constructions for chosen-ciphertext secure attribute based encryption
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Expressive key-policy attribute-based encryption with constant-size ciphertexts
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Revocable attribute-based signatures with adaptive security in the standard model
AFRICACRYPT'11 Proceedings of the 4th international conference on Progress in cryptology in Africa
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Fuzzy identity-based encryption
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
On the joint security of encryption and signature, revisited
ASIACRYPT'11 Proceedings of the 17th international conference on The Theory and Application of Cryptology and Information Security
Short attribute-based signatures for threshold predicates
CT-RSA'12 Proceedings of the 12th conference on Topics in Cryptology
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In the context of public key cryptography, combined encryption and signature schemes have attractive properties and are sometimes used in practice. The topic of joint security of signature and encryption schemes has a fairly extensive history. In this paper, we focus on the combined public-key schemes in attribute-based setting. We present a security model for combined CP-ABE and ABS schemes in the joint security setting. An efficient concrete construction of CP-ABE and ABS based on Waters's CP-ABE scheme is proposed. Our scheme is proved to be selectively jointly secure in standard model under reasonable assumptions. Moreover, we consider the problem of how to build attribute-based signcryption (ABSC) and obtain an ABSC scheme and show that it is secure. We also give a general construction of combined ABSC, CP-ABE and ABS schemes from combined CP-ABE and ABS schemes.