Improved Efficient Identity-based Signcryption Scheme
Changjiang Liu · Jisuanji gongcheng · 2011
This paper analyzes the security issues of an efficient identity-based signcryption scheme S-IDSC.It indicates its lack of the security characteristics of forward security and public verifiability.An improved signcryption scheme E-IBSC is proposed.Security analysis shows that E-IBSC can satisfy the generic security requirements of signcryption schemes.Performance analysis shows that E-IBSC maintains the equivalent computational overheads with only additional acceptable communication load.