The technology of VPN is the network security technology which is added encrypt and attestation in the process when the data is transmitted.

VPN技术就是在数据传送过程中加上了加密和认证的网络安全技术。

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We add much advanced technology in order to enhance capability of server such as data-encrypt, identity- authentication, ASN.

在应用服务器中采用了不少先进技术来提高服务器的性能如： 身份认证，数据加密，ASN。

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To encrypt its data, the pen uses an algorithm called Rijndael, which the National Institute for Standards and Technology is planning to use as the Advanced Encryption Standard, which will replace the existing Data Encryption Standard (DES), which is currently being phased out of use.

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