Cryptanalysis of Certificateless Verifiably Encrypted Signature
Zibi Xiao · Jisuanji gongcheng · 2010
This paper analyzes a certificateless verifiably encrypted signature scheme which is proposed by Zhou Min et al and points out that their scheme can't resist the public key replacement attack,it does not satisfy two basic security properties of verifiably encrypted signature: unforgeab-ility and extractability.Moreover,their scheme has key escrow issue,so it has not the advantages of certificateless public key cryptosystem.