Certificateless parallel signcryption scheme
Futai Zhang · Computer Engineering and Applications Journal · 2009
Signcryption schemes can achieve confidentiality and authentication simultaneously by combining public-key encryption and digital signatures,at lower computational costs and communication overheads than the traditional signature-then-encryption approach.Due to the importance of signcryption schemes and the advantage of certificateless cryptography,a provable security certificateless parallel signcryption scheme is put foword for the first time.It is based on a certificateless encryption scheme and a certificateless signature scheme,which have been proved secure respectively.The analysis shows that the signcryption scheme satisfies the security requirements such as non-repudiation,public verifiability and forward security for a signcryption scheme.