TY - GEN
T1 - An adaptively CCA-secure ciphertext-policy attribute-based proxy re-encryption for cloud data sharing
AU - Liang, Kaitai
AU - Au, Man Ho Allen
AU - Susilo, Willy
AU - Wong, Duncan S.
AU - Yang, Guomin
AU - Yu, Yong
PY - 2014/1/1
Y1 - 2014/1/1
N2 - A Ciphertext-Policy Attribute-Based Proxy Re-Encryption (CP-ABPRE) employs the PRE technology in the attribute-based encryption cryptographic setting, in which the proxy is allowed to convert an encryption under an access policy to another encryption under a new access policy. CP-ABPRE is applicable to many real world applications, such as network data sharing. The existing CP-ABPRE systems, however, leave how to achieve adaptive CCA security as an interesting open problem. This paper, for the first time, proposes a new CP-ABPRE to tackle the problem by integrating the dual system encryption technology with selective proof technique. The new scheme supports any monotonic access structures. Although our scheme is built in the composite order bilinear group, it is proven adaptively CCA secure in the standard model without jeopardizing the expressiveness of access policy.
AB - A Ciphertext-Policy Attribute-Based Proxy Re-Encryption (CP-ABPRE) employs the PRE technology in the attribute-based encryption cryptographic setting, in which the proxy is allowed to convert an encryption under an access policy to another encryption under a new access policy. CP-ABPRE is applicable to many real world applications, such as network data sharing. The existing CP-ABPRE systems, however, leave how to achieve adaptive CCA security as an interesting open problem. This paper, for the first time, proposes a new CP-ABPRE to tackle the problem by integrating the dual system encryption technology with selective proof technique. The new scheme supports any monotonic access structures. Although our scheme is built in the composite order bilinear group, it is proven adaptively CCA secure in the standard model without jeopardizing the expressiveness of access policy.
KW - Adaptive Chosen-Cipher text Security
KW - Ciphertext- Policy Attribute-Based Proxy Re-Encryption
KW - Ciphertext-Policy Attribute-Based Encryption
UR - http://www.scopus.com/inward/record.url?scp=84901660031&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-06320-1_33
DO - 10.1007/978-3-319-06320-1_33
M3 - Conference article published in proceeding or book
SN - 9783319063195
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 448
EP - 461
BT - Information Security Practice and Experience - 10th International Conference, ISPEC 2014, Proceedings
PB - Springer Verlag
T2 - 10th International Conference on Information Security Practice and Experience, ISPEC 2014
Y2 - 5 May 2014 through 8 May 2014
ER -