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Towards hierarchical identity-based encryption

by Jeremy Horwitz, Ben Lynn - In Proceedings of Asiacrypt 2002, LNCS 2501 , 2002
"... Abstract. We introduce the concept of hierarchical identity-based encryption (HIBE) schemes, give precise definitions of their security and mention some applications. A two-level HIBE (2-HIBE) scheme consists of a root private key generator (PKG), domain PKGs and users, all of which are associated w ..."
Abstract - Cited by 141 (0 self) - Add to MetaCart
Abstract. We introduce the concept of hierarchical identity-based encryption (HIBE) schemes, give precise definitions of their security and mention some applications. A two-level HIBE (2-HIBE) scheme consists of a root private key generator (PKG), domain PKGs and users, all of which are associated

On the Power of Hierarchical Identity-Based Encryption

by Mohammad Mahmoody, Ameer Mohammed , 2015
"... We prove that there is no fully black-box construction of collision-resistant hash functions (CRH) from hierarchical identity-based encryption (HIBE) with arbitrary polynomial number of identity levels. As a corollary we obtain a series of separations showing that none of the primitives implied by H ..."
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We prove that there is no fully black-box construction of collision-resistant hash functions (CRH) from hierarchical identity-based encryption (HIBE) with arbitrary polynomial number of identity levels. As a corollary we obtain a series of separations showing that none of the primitives implied

Timed-Release Hierarchical Identity-Based Encryption

by Toru Oshikiri, Taiichi Saito
"... Abstract—We propose a notion of hierarchical identity-based encryption (HIBE) scheme with timed-release encryption (TRE) mechanism, timed-release hierarchical identity-based encryption (TRHIBE), and define its security models. We also show a generic construction of TRHIBE from HIBE and one-time sign ..."
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Abstract—We propose a notion of hierarchical identity-based encryption (HIBE) scheme with timed-release encryption (TRE) mechanism, timed-release hierarchical identity-based encryption (TRHIBE), and define its security models. We also show a generic construction of TRHIBE from HIBE and one

Unbounded Hierarchical Identity-Based Encryption with Efficient Revocation

by Geumsook Ryu, Kwangsu Lee, Seunghwan Park, Dong Hoon Lee
"... Hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE) where an identity of a user is organized as a hierarchical structure and a user can delegate the private key generation to another user. Providing a revocation mechanism for HIBE is highly necessary to k ..."
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Hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE) where an identity of a user is organized as a hierarchical structure and a user can delegate the private key generation to another user. Providing a revocation mechanism for HIBE is highly necessary

Hierarchical identity based encryption with constant size ciphertext

by Dan Boneh, Xavier Boyen, Eu-jin Goh , 2005
"... ..."
Abstract - Cited by 269 (12 self) - Add to MetaCart
Abstract not found

Identity based group signatures from hierarchical identity-based encryption

by N. P. Smart, B. Warinschi - Proceedings of Pairing 2009, volume 5671 of LNCS , 2009
"... Abstract. A number of previous papers explored the notion of identity-based group signature. We present a generic construction of identity-based group signatures. Our construction is based on the Naor transformation of a identity-based signature out of an identity-based encryption, adjusted to hiera ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
to hierarchical identity-based encryption. We identify sufficient conditions on the underlying HIBE so that the scheme that results from our transformation meets our security definitions. Finally, we suggest a couple of extensions enabled by our construction, one of which is to hierarchical identity-based group

Exploiting Hierarchical Identity-Based Encryption for Access Control to Pervasive Computing Information

by Urs Hengartner, Peter Steenkiste , 2004
"... Access control to confidential information in pervasive computing environments is challenging for multiple reasons: First, a client requesting access might not know which access rights are necessary in order to be granted access to the requested information. Second, access control must support flexi ..."
Abstract - Cited by 22 (3 self) - Add to MetaCart
presenting a proof of access to a service or services encrypting information before handing the information over to a client. We propose a proofbased access-control architecture that employs hierarchical identity-based encryption in order to enable services to inform clients of the required proof of access

(Hierarchical) Identity-Based Encryption from Affine Message Authentication

by Olivier Blazy, Eike Kiltz, Jiaxin Pan
"... We provide a generic transformation from any affine message authentication code (MAC) to an identity-based encryption (IBE) scheme over pairing groups of prime order. If the MAC satisfies a security notion related to unforgeability against chosen-message attacks and, for example, the k-Linear assump ..."
Abstract - Cited by 10 (1 self) - Add to MetaCart
-Linear assumption holds, then the resulting IBE scheme is adaptively secure. Our security reduction is tightness preserving, i.e., if the MAC has a tight security reduction so has the IBE scheme. Fur-thermore, the transformation also extends to hierarchical identity-based encryption (HIBE). We also show how

Survey on Identity based and Hierarchical Identity based Encryption Schemes

by D. Kalyani, R. Sridevi Phd
"... In this paper, we present a comprehensive picture and the state of the art of Identity Based Cryptography (IBC) and their security implications with applications. First, we introduce the basic concepts of security and principles of cryptography and then move into identity-based cryptography, an over ..."
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, an overview of its development process and research progress. We explain identity-based encryption (IBE) schemes and identity-based signature (IBS) schemes and their security analysis. Later, we discuss the hierarchical identity-based encryption (HIBE) present in standard model as well as in random oracle

Anonymous Hierarchical Identity-Based Encryption (Without Random Oracles). In: Dwork

by Xavier Boyen , Brent Waters - CRYPTO 2006. LNCS, , 2006
"... Abstract We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the mild Decision Linear complexity assumption in bilinear groups. The system is efficient and practical, with sm ..."
Abstract - Cited by 119 (10 self) - Add to MetaCart
Abstract We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the mild Decision Linear complexity assumption in bilinear groups. The system is efficient and practical
Results 1 - 10 of 1,353