This paper proposes and implements an encryption and decryption system based on U-disk and network, and introduces the function and composition of the system. The whole system consists of three relatively independent parts which are the encryption system, the decryption system and the checking system, using the mature encryption al-gorithm and digital signature technology for the transmission of data encryption, decryption and validation. The ex-perimental results show that the system greatly improves the privacy and the security of data.%本文提出并实现了一种基于U盘和网络的加密解密系统,介绍了系统的功能和组成。整个系统由相对独立的加密系统、解密系统和校核系统三个部分组成,利用成熟的加密算法和数字签名等技术对传输的数据进行加密、解密和校验。实验结果表明,该系统极大的提高了数据的保密性和安全性。
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