Digital signature is one of the technique that ensure information safety. It plays an important factor in protecting integrality, unforgeability, undeniability and verifiability of the information.

• 公钥密码体制的数字签名技术作为保障信息安全的技术之一，在确保信息完整性、不可伪造性、不可否认性方面发挥了重要的作用。