结合椭圆曲线上的Tate配对和混合加密体制,提出了一种新的签名加密算法,它集密钥交换、数字签名和数据加密解密功能干一体,能完全抵抗生日攻击,既安全又实用,特别适用于电子商务系统。
With the combination of Tate pairing defined on elliptic curves and hybrid cryptosystem, a new signcryption algorithm is introduced. The algncryption algorithm aggregates the functions of key exchange, digital signature Verification and data encryption. It can fully resist birthday attack. The algorithm is safe and practical,and it is especially suitable for e-commerce system.