TY - GEN
T1 - Efficient certificateless signature schemes
AU - Choi, Kyu Young
AU - Park, Jong Hwan
AU - Hwang, Jung Yeon
AU - Lee, Dong Hoon
PY - 2007
Y1 - 2007
N2 - Recently, in order to eliminate the use of certificates in certified public key cryptography and the key-escrow problem in identity based cryptography, the notion of certificateless public key cryptography was introduced. In this paper, to construct an efficient certificateless signature (CLS) scheme, we present a new approach compactly and orthogonally combining short signatures using bilinear maps. Our approach is conceptually simple but effective to improve efficiency greatly. In the proposed CLS scheme a full private key of a user is a single group element and signature verification requires only one pairing operation. In addition, our CLS scheme has a flexible structure which can be easily extended to a certificateless signature scheme with additional properties such as certificateless ring and blind signature schemes.
AB - Recently, in order to eliminate the use of certificates in certified public key cryptography and the key-escrow problem in identity based cryptography, the notion of certificateless public key cryptography was introduced. In this paper, to construct an efficient certificateless signature (CLS) scheme, we present a new approach compactly and orthogonally combining short signatures using bilinear maps. Our approach is conceptually simple but effective to improve efficiency greatly. In the proposed CLS scheme a full private key of a user is a single group element and signature verification requires only one pairing operation. In addition, our CLS scheme has a flexible structure which can be easily extended to a certificateless signature scheme with additional properties such as certificateless ring and blind signature schemes.
UR - http://www.scopus.com/inward/record.url?scp=38049004985&partnerID=8YFLogxK
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U2 - 10.1007/978-3-540-72738-5_29
DO - 10.1007/978-3-540-72738-5_29
M3 - Conference contribution
AN - SCOPUS:38049004985
SN - 9783540727378
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 443
EP - 458
BT - Applied Cryptography and Network Security - 5th International Conference, ACNS 2007, Proceedings
PB - Springer Verlag
T2 - 5th International Conference on Applied Cryptography and Network Security, ACNS 2007
Y2 - 5 June 2007 through 8 June 2007
ER -