正由于此，数字签名作为一种具有消息完整性认证、可鉴别性、不可否认性和具有加密功能的技术应运而生。

Positively because of this, the digital signature is used as a kind of technique having function of the new integrity authentication, identification, non-repudiation and encryption.

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实体间的身份认证和鉴别是电子支付协议的基础。

Identification and authentication is the foundation of electronic payment.

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实验表明，改进ENN的身份鉴别融合系统的认证率比K-NN和传统ENN融合系统有所提高。

Compared with K-NN and ENN identity verification systems, the performance of verification system using improved ENN is enhanced.

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