MSSQL數(shù)據(jù)加密解密代碼
更新時(shí)間：2012年11月05日 17:04:53 作者：
這個(gè)是一個(gè)簡(jiǎn)單的例子 里面還涉及到 如 對(duì)稱(chēng)密鑰加密使用證書(shū)解密，沒(méi)有涉及到
可以查看：
OPEN SYMMETRIC KEY 命令關(guān)于 對(duì)稱(chēng)密鑰加密使用證書(shū)解密
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password'
go
CREATE CERTIFICATE CertTest
with SUBJECT = 'Test Certificate'
GO
--創(chuàng)建非對(duì)稱(chēng)密鑰
CREATE ASYMMETRIC KEY TestAsymmetric
WITH ALGORITHM = RSA_2048
ENCRYPTION BY PASSWORD = 'password1' ;
GO
ALTER ASYMMETRIC KEY TestAsymmetric WITH PRIVATE KEY (DECRYPTION BY PASSWORD = 'password1')
--DROP ASYMMETRIC KEY TestAsymmetric
--創(chuàng)建對(duì)稱(chēng)密鑰
CREATE SYMMETRIC KEY TestSymmetric
WITH ALGORITHM = AES_256
ENCRYPTION BY PASSWORD = 'password' ;
GO
OPEN SYMMETRIC KEY TestSymmetric
DECRYPTION BY PASSWORD = 'password' ;
go
SELECT
ENCRYPTBYASYMKEY(ASYMKEY_ID ('TestAsymmetric'), name) ,
CAST(deCRYPTBYASYMKEY (ASYMKEY_ID( 'TestAsymmetric'),ENCRYPTBYASYMKEY (ASYMKEY_ID( 'TestAsymmetric'),name ) )
as nvarchar(200 )),
ENCRYPTBYCERT ( Cert_ID('CertTest' ),name),
CAST(deCRYPTBYCERT (Cert_ID ('CertTest'), ENCRYPTBYCERT (Cert_ID( 'CertTest'),name ))
as nvarchar (200)),
EncryptByKey ( KEY_GUID('TestSymmetric' ),name),
CAST(decryptByKey (EncryptByKey (KEY_GUID ('TestSymmetric'), name))
as nvarchar (200))
FROM sys .objects
復(fù)制代碼 代碼如下:
OPEN SYMMETRIC KEY 命令關(guān)于 對(duì)稱(chēng)密鑰加密使用證書(shū)解密
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password'
go
CREATE CERTIFICATE CertTest
with SUBJECT = 'Test Certificate'
GO
--創(chuàng)建非對(duì)稱(chēng)密鑰
CREATE ASYMMETRIC KEY TestAsymmetric
WITH ALGORITHM = RSA_2048
ENCRYPTION BY PASSWORD = 'password1' ;
GO
ALTER ASYMMETRIC KEY TestAsymmetric WITH PRIVATE KEY (DECRYPTION BY PASSWORD = 'password1')
--DROP ASYMMETRIC KEY TestAsymmetric
--創(chuàng)建對(duì)稱(chēng)密鑰
CREATE SYMMETRIC KEY TestSymmetric
WITH ALGORITHM = AES_256
ENCRYPTION BY PASSWORD = 'password' ;
GO
OPEN SYMMETRIC KEY TestSymmetric
DECRYPTION BY PASSWORD = 'password' ;
go
SELECT
ENCRYPTBYASYMKEY(ASYMKEY_ID ('TestAsymmetric'), name) ,
CAST(deCRYPTBYASYMKEY (ASYMKEY_ID( 'TestAsymmetric'),ENCRYPTBYASYMKEY (ASYMKEY_ID( 'TestAsymmetric'),name ) )
as nvarchar(200 )),
ENCRYPTBYCERT ( Cert_ID('CertTest' ),name),
CAST(deCRYPTBYCERT (Cert_ID ('CertTest'), ENCRYPTBYCERT (Cert_ID( 'CertTest'),name ))
as nvarchar (200)),
EncryptByKey ( KEY_GUID('TestSymmetric' ),name),
CAST(decryptByKey (EncryptByKey (KEY_GUID ('TestSymmetric'), name))
as nvarchar (200))
FROM sys .objects
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