Securely combining public-key cryptosystems
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Efficient Identity Based Signature Schemes Based on Pairings
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Universal Padding Schemes for RSA
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
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Further Results and Considerations on Side Channel Attacks on RSA
CHES '02 Revised Papers from the 4th International Workshop on Cryptographic Hardware and Embedded Systems
Versatile padding schemes for joint signature and encryption
Proceedings of the 11th ACM conference on Computer and communications security
Direct chosen ciphertext security from identity-based techniques
Proceedings of the 12th ACM conference on Computer and communications security
Chosen-Ciphertext Security from Identity-Based Encryption
SIAM Journal on Computing
Short Signatures Without Random Oracles and the SDH Assumption in Bilinear Groups
Journal of Cryptology
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SIAM Journal on Computing
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CRYPTO 2008 Proceedings of the 28th Annual conference on Cryptology: Advances in Cryptology
Discrete Applied Mathematics
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INDOCRYPT '09 Proceedings of the 10th International Conference on Cryptology in India: Progress in Cryptology
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Journal of Cryptology
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PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
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SAC'04 Proceedings of the 11th international conference on Selected Areas in Cryptography
Efficient Selective Identity-Based Encryption Without Random Oracles
Journal of Cryptology
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
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EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
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EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Pairing-Friendly elliptic curves of prime order
SAC'05 Proceedings of the 12th international conference on Selected Areas in Cryptography
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
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
On the joint security of encryption and signature in EMV
CT-RSA'12 Proceedings of the 12th conference on Topics in Cryptology
Combined public-key schemes: the case of ABE and ABS
ProvSec'12 Proceedings of the 6th international conference on Provable Security
RKA security beyond the linear barrier: IBE, encryption and signatures
ASIACRYPT'12 Proceedings of the 18th international conference on The Theory and Application of Cryptology and Information Security
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We revisit the topic of joint security for combined public key schemes, wherein a single keypair is used for both encryption and signature primitives in a secure manner. While breaking the principle of key separation, such schemes have attractive properties and are sometimes used in practice. We give a general construction for a combined public key scheme having joint security that uses IBE as a component and that works in the standard model. We provide a more efficient direct construction, also in the standard model.