搜索结果: 1-15 共查到“军事学 Hierarchical Identity”相关记录25条 . 查询时间(0.063 秒)
Simplified Revocable Hierarchical Identity-Based Encryption from Lattices
Lattices Identity-based encryption Revocation
2019/8/14
As an extension of identity-based encryption (IBE), revocable hierarchical IBE (RHIBE) supports both key revocation and key delegation simultaneously, which are two important functionalities for crypt...
Tightly secure hierarchical identity-based encryption
hierarchical identity-based encryption tight security affine message authentication codes
2019/1/26
We construct the first tightly secure hierarchical identity-based encryption (HIBE) scheme based on standard assumptions, which solves an open problem from Blazy, Kiltz, and Pan (CRYPTO 2014). At the ...
HIR-CP-ABE: Hierarchical Identity Revocable Ciphertext-Policy Attribute-Based Encryption for Secure and Flexible Data Sharing
Attribute-Based Access Control Encryption CP-ABE
2017/11/20
Ciphertext Policy Attribute-Based Encryption (CP- ABE) has been proposed to implement the attribute-based access control model. In CP-ABE, data owners encrypt the data with a certain access policy suc...
Revocable Hierarchical Identity-Based Encryption with Adaptive Security
Hierarchical identity-based encryption Key revocation Adaptive security
2016/12/12
Hierarchical identity-based encryption (HIBE) can be extended to revocable HIBE (RHIBE) if a private key of a user can be revoked when the private key is revealed or expired. Previously, many selectiv...
Efficient and Provable Secure Anonymous Hierarchical Identity-based Broadcast Encryption (HIBBE) Scheme without Random Oracle
Broadcast encryption Hierarchical identity-based encryption Identity-based multi designated verifier signature
2016/12/10
Hierarchical identity-based broadcast encryption (HIBBE) organizes the users in a tree-like structure in which they can delegate the decryption ability to their subordinates. In addition, the trusted ...
Compact CCA2-secure Hierarchical Identity-Based Broadcast Encryption for Fuzzy-entity Data Sharing
Hierarchical Identity-Based Broadcast Encryption Adaptive Security Chosen-ciphertext Security
2016/6/22
With the advances of cloud computing, data sharing becomes easier for large-scale enterprises. When deploying privacy and security schemes in data sharing systems, fuzzy-entity data sharing, entity ma...
Revocable Hierarchical Identity-Based Encryption with Shorter Private Keys and Update Keys
Identity-based encryption Hierarchical identity-based encryption Key revocation
2016/5/17
Revocable hierarchical identity-based encryption (RHIBE) is an extension of HIBE that supports the
revocation of user’s private keys to manage the dynamic credentials of users in a system. Many diffe...
(Hierarchical) Identity-Based Encryption from Affine Message Authentication
IBE HIBE standard model
2016/1/8
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...
On the Power of Hierarchical Identity-Based Encryption
Hierarchical Identity-based Encryption Collision Resistant Hashing Black-Box Separations
2015/12/23
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 lev...
Unbounded Hierarchical Identity-Based Encryption with Efficient Revocation
Identity-based encryption Hierarchical identity-based encryption Revocation
2015/12/23
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 priva...
Fully Secure Anonymous Hierarchical Identity-Based Encryption with Constant Size Ciphertexts
Hierarchical Identity-Based Encryption (HIBE) Anonymous Hierarchical Identity Based Encryption Public-key Encryption with Keyword Search (PEKS)
2011/1/18
Efficient and privacy-preserving constructions for search functionality on encrypted data is important issues for data outsourcing, and data retrieval, etc. Fully secure anonymous Hierarchical ID-Base...
Fully Secure Anonymous Hierarchical Identity-Based Encryption with Constant Size Ciphertexts
cryptographic protocols / anonymity
2012/3/30
Efficient and privacy-preserving constructions for search functionality on encrypted data is important issues for data outsourcing, and data retrieval, etc. Fully secure anonymous Hierarchical ID-Base...
Strongly Unforgeable Signatures and Hierarchical Identity-based Signatures from Lattices without Random Oracles—Extended Version—
Post-quantum cryptography lattice cryptography digital signatures identity-based cryptography
2010/2/20
We propose a variant of Peikert's lattice-based existentially
unforgeable signature scheme in the standard model. Our construction
offers the same eciency as Peikert's but supports the stronger not...
Identity Based Group Signatures from Hierarchical Identity-Based Encryption
Identity Based Group Signatures Hierarchical Identity-Based Encryption
2009/7/14
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 transfo...
Hierarchical Identity Based Encryption with Polynomially Many Levels
Hierarchical Identity Encryption Polynomially Many Levels
2009/6/9
We present the first hierarchical identity based encryption (HIBE) system that has full
security for more than a constant number of levels. In all prior HIBE systems in the literature, the
security ...