MSSQLデータ暗号解読コード

以下を表示できます.

 
  
OPEN SYMMETRIC KEY                   
  
CREATE MASTER KEY ENCRYPTION BY PASSWORD = 'password' 
  
go 
  
CREATE CERTIFICATE CertTest 
  
with SUBJECT = 'Test Certificate' 
  
GO 
  
--        
  
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 
  
--       
  
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