Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
CRYPTO '93 Proceedings of the 13th annual international cryptology conference on Advances in cryptology
Communications of the ACM
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Generalized Secret Sharing and Monotone Functions
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
A Practical Public Key Cryptosystem Provably Secure Against Adaptive Chosen Ciphertext Attack
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Applications of Multiple Trust Authorities in Pairing Based Cryptosystems
InfraSec '02 Proceedings of the International Conference on Infrastructure Security
Randomness Re-use in Multi-recipient Encryption Schemeas
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
Proceedings of the 2003 ACM workshop on Privacy in the electronic society
Concealing complex policies with hidden credentials
Proceedings of the 11th ACM conference on Computer and communications security
Access control using pairing based cryptography
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Chosen-ciphertext security of multiple encryption
TCC'05 Proceedings of the Second international conference on Theory of Cryptography
Practical identity-based encryption without random oracles
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Security proof of sakai-kasahara's identity-based encryption scheme
IMA'05 Proceedings of the 10th international conference on Cryptography and Coding
An identity-based key infrastructure suitable for messaging and its application to e-mail
Proceedings of the 4th international conference on Security and privacy in communication netowrks
PKC'11 Proceedings of the 14th international conference on Practice and theory in public key cryptography conference on Public key cryptography
Unbounded HIBE and attribute-based encryption
EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
Decentralizing attribute-based encryption
EUROCRYPT'11 Proceedings of the 30th Annual international conference on Theory and applications of cryptographic techniques: advances in cryptology
Exclusion-intersection encryption
International Journal of Security and Networks
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Practical constructions and new proof methods for large universe attribute-based encryption
Proceedings of the 2013 ACM SIGSAC conference on Computer & communications security
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Following the work of Al-Riyami et al. we define the notion of key encapsulation mechanism supporting cryptographic workflow (WF-KEM) and prove a KEM-DEM composition theorem which extends the notion of hybrid encryption to cryptographic workflow. We then generically construct a WF-KEM from an identity-based encryption (IBE) scheme and a secret sharing scheme. Chosen ciphertext security is achieved using one-time signatures. Adding a public-key encryption scheme we are able to modify the construction to obtain escrow-freeness. We prove all our constructions secure in the standard model.