Description: The information technology rapid development, caused people’s life appearance to have the very big change, simultaneously the information technology also promoted society development. In the computer network thorough popularization information time, information itself is the time, is the wealth. How protects the information security to cause it not to be stole and as for not to tamper with or destruction, has become the major issue which now generally pays attention . The password is useful and effectible method.
This article mainly introduces the DES encryption and decipher algorithm java language realization, three aspects elaborated from key fresh、the encryption principle DES、the decryption principle DES algorithm entire has worked. And in this foundation, in windows environment, realizes the encryption and decryption algorithm using java, completes a local document by the window contact surface way to add the decipher demonstration.
The article divides into seven to blow. Fi
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04030326李愿如（论文）.doc
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