Hierarchical Identity-Based Encryption with Constant-Size Private Keys
نویسندگان
چکیده
منابع مشابه
Identity-Based Broadcast Encryption with Constant Size Ciphertexts and Private Keys
This paper describes the first identity-based broadcast encryption scheme (IBBE) with constant size ciphertexts and private keys. In our scheme, the public key is of size linear in the maximal size m of the set of receivers, which is smaller than the number of possible users (identities) in the system. Compared with a recent broadcast encryption system introduced by Boneh, Gentry and Waters (BG...
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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-Based Encryption (HIBE) schemes is useful primitives that can be applicable to searchable encryptions [4], such as ID-based searchable encryption, temporary searchable encryption [1], and anonymous for...
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We present a Hierarchical Identity Based Encryption (HIBE) system where the ciphertext consists of just three group elements and decryption requires only two bilinear map computations, regardless of the hierarchy depth. Encryption is as efficient as in other HIBE systems. We prove that the scheme is selective-ID secure in the standard model and fully secure in the random oracle model. Our syste...
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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 different RHIBE schemes were proposed previously, but they are not efficient in terms of the private key size and the update key size since the depth of a hierarchical identity is included as a multiplic...
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Article history: Received 10 April 2015 Received in revised form 20 June 2015 Accepted 6 September 2015 Available online xxxx Communicated by G. Persiano
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ژورنال
عنوان ژورنال: ETRI Journal
سال: 2012
ISSN: 1225-6463
DOI: 10.4218/etrij.12.0211.0140