随着网络的普及，人们的隐私性也相对的减少了，而数据加密是保护隐私性的一种方式，我们现在几乎天天都会应用到数据加密技术，本文介绍了几种数据加密的实现方法。在应用方面，主要介绍了指纹识别技术，这个技术正逐渐在生活广泛应用起来。-With the popularity of the network, the privacy of the people is also relatively reduced, and data encryption is a way to protect the privacy of us almost every day now applied to data encryption technology, the article describes several implementations of data encryption method. In the application, introduces fingerprint recognition technology, this technology is widely used in life gradually.