Analysis of Data Encryption Techniques

Along with technological advancement and development of modern times civilization and economic, data encryption techniques have been degrees into community from apply of diplomatism information and military affairs. In fact, data encryption techniques are not mysteries. A general method about data encryption is introduced as well as method and process based on public-key encryption algorithm. The principle and algorithm of multi-step encryption algorithm is introduced in detail. At last, an application about the multi-step encryption algorithm is brought forward combining with the experience of the authors.