煤矿瓦斯监控系统关键数据加密算法的研究与实现

Research of Critical Data Encryption Algorithm of Gas Monitoring System of Coal Mine and Its Implementation

为了防止煤矿瓦斯监控系统中关键数据被篡改,保证数据安全,提出一种在SQL Server 2008数据库中利用对称加密算法对重要字段进行加密,并使用密钥和解密函数还原数据的方法。字段被对称加密后,任何对该字段数据的更改操作都需要得知密钥,并使用解密函数才能实现,从而有效地防止了对关键数据的非法操作,保护了敏感数据。实际应用证实了关键数据加密算法的有效性。

In order to prevent critical data of gas monitoring system of coal ensure data security, the paper proposed a method of using symmetric encryp important field in database of SQL Server 2008 and restore data by key and changes to the encrypted data cannot function, so as to effectively prevent Practical application confirmed validity mine from tampering and tion algorithm to encrypt de be achieved unless knowing the key an the illegal operation of critical data and of the critical data encryption algorithm. cryption function. Any d using the decryption protect sensitive data.