Analysis of an Identity-Based Signcryption Scheme in the Standard Model

作者:Li, Fagen*; Liao, Yongjian; Qin, Zhiguang
来源:IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2011, E94A(1): 268-269.
DOI:10.1587/transfun.E94.A.268

摘要

Recently, Jin, Wen, and Du proposed an identity-based signcryption scheme in the standard model. In this letter, we show that their scheme does not have the indistinguishability against adaptive chosen ciphertext attacks and existential unforgeability against adaptive chosen messages attacks.