fully secure attribute-based systems with short ciphertexts/signatures and threshold access structures

ISCAS OpenIR

	fully secure attribute-based systems with short ciphertexts/signatures and threshold access structures
	Chen Cheng; Chen Jie; Lim Hoon Wei; Zhang Zhenfeng; Feng Dengguo; Ling San; Wang Huaxiong
	2013
会议名称	Cryptographers' Track at the RSA Conference 2013, CT-RSA 2013
会议录名称	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
页码	50-67
会议日期	February 25, 2013 - March 1, 2013
会议地点	San Francisco, CA, United states
收录类别	EI
ISSN	0302-9743
ISBN	9783642360947
部门归属	(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
摘要	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.; 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.
关键词	Concrete Construction Concretes Network Security
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/15905
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Chen Cheng,Chen Jie,Lim Hoon Wei,et al. fully secure attribute-based systems with short ciphertexts/signatures and threshold access structures[C],2013:50-67.