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Title:
fully secure attribute-based systems with short ciphertexts/signatures and threshold access structures
Author: Chen Cheng ; Chen Jie ; Lim Hoon Wei ; Zhang Zhenfeng ; Feng Dengguo ; Ling San ; Wang Huaxiong
Source: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Conference Name: Cryptographers' Track at the RSA Conference 2013, CT-RSA 2013
Conference Date: February 25, 2013 - March 1, 2013
Issued Date: 2013
Conference Place: San Francisco, CA, United states
Keyword: Concrete construction ; Concretes ; Network security
Indexed Type: EI
ISSN: 0302-9743
ISBN: 9783642360947
Department: (1) Institute of Software Chinese Academy of Sciences Beijing China; (2) Division of Mathematical Sciences School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore
Abstract: It has been an appealing but challenging goal in research on attribute-based encryption (ABE) and attribute-based signatures (ABS) to design a secure scheme with short ciphertexts and signatures, respectively. While recent results show that some promising progress has been made in this direction, they do not always offer a satisfactory level of security, i.e. achieving selective rather than full security. In this paper, we aim to achieve both full security and short ciphertexts/signatures for threshold access structures in the ABE/ABS setting. Towards achieving this goal, we propose generic property-preserving conversions from inner-product systems to attribute-based systems. We first give concrete constructions of fully secure IPE/IPS with constant-size ciphertexts/signatures in the composite order groups. By making use of our IPE/IPS schemes as building blocks, we then present concrete constructions of fully secure key-policy ABE (KP-ABE) and ciphertext-policy ABE (CP-ABE) with constant-size ciphertexts, and a fully secure ABS with constant-size signatures with perfect privacy for threshold access structures. These results give rise to the first constructions satisfying the aforementioned requirements. Our schemes reduce the number of pairing evaluations to a constant, a very attractive property for practical attribute-based systems. Furthermore, we show that our schemes can be extended to support large attribute universes and more expressive access structures. © 2013 Springer-Verlag.
English Abstract: It has been an appealing but challenging goal in research on attribute-based encryption (ABE) and attribute-based signatures (ABS) to design a secure scheme with short ciphertexts and signatures, respectively. While recent results show that some promising progress has been made in this direction, they do not always offer a satisfactory level of security, i.e. achieving selective rather than full security. In this paper, we aim to achieve both full security and short ciphertexts/signatures for threshold access structures in the ABE/ABS setting. Towards achieving this goal, we propose generic property-preserving conversions from inner-product systems to attribute-based systems. We first give concrete constructions of fully secure IPE/IPS with constant-size ciphertexts/signatures in the composite order groups. By making use of our IPE/IPS schemes as building blocks, we then present concrete constructions of fully secure key-policy ABE (KP-ABE) and ciphertext-policy ABE (CP-ABE) with constant-size ciphertexts, and a fully secure ABS with constant-size signatures with perfect privacy for threshold access structures. These results give rise to the first constructions satisfying the aforementioned requirements. Our schemes reduce the number of pairing evaluations to a constant, a very attractive property for practical attribute-based systems. Furthermore, we show that our schemes can be extended to support large attribute universes and more expressive access structures. © 2013 Springer-Verlag.
Language: 英语
Content Type: 会议论文
URI: http://ir.iscas.ac.cn/handle/311060/15905
Appears in Collections:软件所图书馆_会议论文

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Recommended Citation:
Chen Cheng,Chen Jie,Lim Hoon Wei,et al. fully secure attribute-based systems with short ciphertexts/signatures and threshold access structures[C]. 见:Cryptographers' Track at the RSA Conference 2013, CT-RSA 2013. San Francisco, CA, United states. February 25, 2013 - March 1, 2013.
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