数据库数据加密与解密
标签:
SQL Server
MVC的练习之旅,将要进入另一个阶段了,将增加会员功能。在进入之前,一些准备工作需要做的。一步一个脚印吧。设计会员功能,其中密码字段,Insus.NET想对它进行加密。就因这个加密,还得花上一些时间来整理。
Insus.NET参考MSDN网站,列出数据库加密解密例子(以下是在SQL Server 2012进行):
--创建数据库主密钥CREATE MASTER KEY ENCRYPTION BY PASSWORD ='Pass#Tutorial#word'GO
--创建证书CREATE CERTIFICATE PasswordCert with SUBJECT = 'Member Password Certificate'GO
--创建非对称密钥CREATE ASYMMETRIC KEY PasswordAsymmetric WITH ALGORITHM = RSA_2048 --{ RSA_512 | RSA_1024 | RSA_2048 } ENCRYPTION BY PASSWORD = 'Pass#Tutorial#word'; GO
--创建对称密钥CREATE SYMMETRIC KEY PasswordSymmetric WITH ALGORITHM = AES_256 --{ AES_128 | AES_192 | AES_256 | TRIPLE_DES_3KEY } ENCRYPTION BY PASSWORD = 'Pass#Tutorial#word';GO
--由证书加密对称密钥CREATE SYMMETRIC KEY SymmetricByCert WITH ALGORITHM = AES_256 ENCRYPTION BY CERTIFICATE PasswordCert;GO
--由对称密钥加密对称密钥OPEN SYMMETRIC KEY PasswordSymmetric DECRYPTION BY PASSWORD='Pass#Tutorial#word'CREATE SYMMETRIC KEY SymmetricBySy WITH ALGORITHM = AES_256 ENCRYPTION BY SYMMETRIC KEY PasswordSymmetric;GO
--由非对称密钥加密对称密钥CREATE SYMMETRIC KEY SymmetricByAsy WITH ALGORITHM = AES_256 ENCRYPTION BY ASYMMETRIC KEY PasswordAsymmetric;GO
创建之后,会要相应的数据库之下,显示如下:
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