nonrepudiation

6.As Levy observes, “This nonrepudiation feature is the electronic equivalent of a notary public seal.

正如列维认为：“这种不可否认性特征是公证人印章等价物。”

Data confidence, integrity, nonrepudiation, identity and access control are the five key factors to protect online bank, stock, tax from attacks.

数据机密性、完整性、防抵赖、身份识别、访问控制五个键安全问题是保证银行、证券、报税等典型易系统安全运行基础。