TY - JOUR
T1 - Anonymous HIBE with short ciphertexts
T2 - full security in prime order groups
AU - Lee, Kwangsu
AU - Park, Jong Hwan
AU - Lee, Dong Hoon
N1 - Funding Information:
This work was partly supported by the MSIP (Ministry of Science, ICT & Future Planning), Korea, under the C-ITRC (Convergence Information Technology Research Center) support program (NIPA-2013-H0301-13-3007) supervised by the NIPA (National IT Industry Promotion Agency) and the IT R&D program of MOTIE/KEIT [KI002113, Development of Security Technology for Car-Healthcare].
Publisher Copyright:
© 2013, Springer Science+Business Media New York.
PY - 2013/2
Y1 - 2013/2
N2 - Anonymous hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE), and it provides not only a message hiding property but also an identity hiding property. Anonymous HIBE schemes can be applicable to anonymous communication systems and public key encryption systems with keyword searching. However, previous anonymous HIBE schemes have some disadvantages that the security was proven in the weaker model, the size of ciphertexts is not short, or the construction was based on composite order bilinear groups. In this paper, we propose the first efficient anonymous HIBE scheme with short ciphertexts in prime order (asymmetric) bilinear groups, and prove its security in the full model with an efficient reduction. To achieve this, we use the dual system encryption methodology of Waters. We also present the benchmark results of our scheme by measuring the performance of our implementation.
AB - Anonymous hierarchical identity-based encryption (HIBE) is an extension of identity-based encryption (IBE), and it provides not only a message hiding property but also an identity hiding property. Anonymous HIBE schemes can be applicable to anonymous communication systems and public key encryption systems with keyword searching. However, previous anonymous HIBE schemes have some disadvantages that the security was proven in the weaker model, the size of ciphertexts is not short, or the construction was based on composite order bilinear groups. In this paper, we propose the first efficient anonymous HIBE scheme with short ciphertexts in prime order (asymmetric) bilinear groups, and prove its security in the full model with an efficient reduction. To achieve this, we use the dual system encryption methodology of Waters. We also present the benchmark results of our scheme by measuring the performance of our implementation.
KW - Anonymity
KW - Bilinear maps
KW - Full model security
KW - Hierarchical identity-based encryption
KW - Identity-based encryption
UR - http://www.scopus.com/inward/record.url?scp=84922002010&partnerID=8YFLogxK
U2 - 10.1007/s10623-013-9868-6
DO - 10.1007/s10623-013-9868-6
M3 - Article
AN - SCOPUS:84922002010
SN - 0925-1022
VL - 74
SP - 395
EP - 425
JO - Designs, Codes, and Cryptography
JF - Designs, Codes, and Cryptography
IS - 2
ER -