ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);//ICryptoTransform接口,用来定义加密转换的基本操作 // Create the streams used for encryption.//创建用于加密的流 using (MemoryStream msEncrypt = new MemoryStream())//MemoryStream创建一个流,其后备存储为内存 { using (CryptoStr...
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);//ICryptoTransform接口,用来定义加密转换的基本操作 // Create the streams used for encryption.//创建用于加密的流 using (MemoryStream msEncrypt = new MemoryStream())//MemoryStream创建一个流,其后备存储为内存 { using (CryptoStr...
Transparent Data Encryption and the tempdb System Database The tempdb system database will be encrypted if any other database on the instance of SQL Server is encrypted by using TDE. This might have a performance effect for unencrypted databases on the same instance of SQL Server. For more inf...
選取加密數據行時,需要VIEW ANY COLUMN MASTER KEY DEFINITION和VIEW ANY COLUMN ENCRYPTION KEY DEFINITION許可權,即使使用者沒有數據行主要密鑰的許可權(在其密鑰存放區中),保護數據行且無法存取純文本嘗試。 在SQL Server 中,VIEW ANY COLUMN MASTER KEY DEFINITION和VIEW ANY COLUMN ENCRYPTION KEY DEFINITION許可權...
Step 2 – SQL Server Service Master Key The Service Master Key is the root of the SQL Server encryption hierarchy. It is created during the instance creation. Confirm it’s existence using the query below. If it does not exist we need to manually create it. Read more about service ...
SQL Server uses the AES encryption algorithm to protect the service master key (SMK) and the database master key (DMK). AES is a newer encryption algorithm than 3DES used in earlier versions. After upgrading an instance of the Database Engine to SQL Server the SMK and DMK should be regene...
This example creates the encryption options and uses it as a parameter value in Backup-SqlDatabase cmdlet to create an encrypted backup. PowerShell Copy $encryptionOption = New-SqlBackupEncryptionOption -Algorithm Aes256 -EncryptorType ServerCertificate -EncryptorName "BackupCert" Backup-SqlDatabase...
SQL Server 2016 Always Encrypted Problem SQL Server has had ways to encrypt data in the past - for example, Transparent Data Encryption (TDE). This te
AES_128 AES_192 AES_256 TRIPLE_DES_3KEY NO_ENCRYPTION 如果决定加密,则还必须使用加密程序选项指定加密程序: SERVER CERTIFICATE = Encryptor_Name SERVER ASYMMETRIC KEY = Encryptor_Name SERVER CERTIFICATE 和SERVER ASYMMETRIC KEY 是在master 数据库中创建的证书和非对称密钥。 有关详细信息,请分别参阅 CREATE...
4631 Disables SHA2_256/AES256 for hashing passwords that generate encryption keys. Starting in SQL Server 2017 (14.x), SHA2 is used instead of SHA1. This means extra steps might be necessary to have your SQL Server 2017 (14.x) installation decrypt items that were encrypted by SQL Serv...