MasterKey 类
The MasterKey object represents a SQL Server database master key.
继承层次结构
System.Object
Microsoft.SqlServer.Management.Smo.SmoObjectBase
Microsoft.SqlServer.Management.Smo.SqlSmoObject
Microsoft.SqlServer.Management.Smo.MasterKey
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo(在 Microsoft.SqlServer.Smo.dll 中)
语法
声明
Public NotInheritable Class MasterKey _
Inherits SqlSmoObject _
Implements ISfcSupportsDesignMode, IDroppable
用法
Dim instance As MasterKey
public sealed class MasterKey : SqlSmoObject,
ISfcSupportsDesignMode, IDroppable
public ref class MasterKey sealed : public SqlSmoObject,
ISfcSupportsDesignMode, IDroppable
[<SealedAttribute>]
type MasterKey =
class
inherit SqlSmoObject
interface ISfcSupportsDesignMode
interface IDroppable
end
public final class MasterKey extends SqlSmoObject implements ISfcSupportsDesignMode, IDroppable
MasterKey 类型公开以下成员。
构造函数
名称 | 说明 | |
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MasterKey() | Initializes a new instance of the MasterKey class. |
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MasterKey(Database) | Initializes a new instance of the MasterKey class on the specified database. |
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属性
名称 | 说明 | |
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CreateDate | Gets the date and time when the master key was created. |
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DateLastModified | Gets the date and time when the master key was last modified. |
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IsEncryptedByServer | Gets the Boolean property value that specifies whether the database master key is encrypted by using the service master key or by using a password. |
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IsOpen | Gets the Boolean property value that specifies whether the database master key is open. |
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Parent | Gets the Database object that is the parent of the MasterKey object. |
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Properties | Gets a collection of Property objects that represent the object properties. (从 SqlSmoObject 继承。) |
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State | Gets the state of the referenced object. (从 SmoObjectBase 继承。) |
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Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (从 SqlSmoObject 继承。) |
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UserData | Gets or sets user-defined data associated with the referenced object. (从 SmoObjectBase 继承。) |
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方法
名称 | 说明 | |
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AddPasswordEncryption | Adds password encryption to the master key. |
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AddServiceKeyEncryption | Adds service key encryption to the master key. |
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Close | Closes the master key. |
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Create(String) | Creates a master key that has the specified password. |
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Create(String, String, String) | Creates a master key from the specified file and that has the specified encryption and decryption passwords. |
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Discover | Discovers a list of type Object. (从 SqlSmoObject 继承。) |
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Drop | Removes the master key from the database. |
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DropPasswordEncryption | Removes the password encryption from the master key by using the associated password. |
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DropServiceKeyEncryption | Drops service key encryption from the master key. |
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EnumKeyEncryptions | Enumerates a list of the current set of key encryptions for the database master key. |
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Equals | (从 Object 继承。) |
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Export | Saves the database master key to the specified system path location by using the specified password. |
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FormatSqlVariant | Formats an object as SqlVariant type. (从 SqlSmoObject 继承。) |
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GetContextDB | Gets the context database that is associated with this object. (从 SqlSmoObject 继承。) |
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GetDBName | Gets the database name that is associated with the object. (从 SqlSmoObject 继承。) |
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GetHashCode | (从 Object 继承。) |
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GetPropValue | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
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GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
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GetServerObject | Gets the server of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
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GetType | (从 Object 继承。) |
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Import(String, String, String) | Loads the database master key from the file that is located at the specified system path by using the specified passwords to decrypt and encrypt the master key. |
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Import(String, String, String, Boolean) | Loads the database master key from the file that is located at the specified system path by using the specified passwords to decrypt and encrypt the master key, and with the option to force regeneration. |
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Initialize() | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) |
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IsObjectInitialized | Verifies whether the object has been initialized. (从 SqlSmoObject 继承。) |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (从 SqlSmoObject 继承。) |
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Open | Opens the database master key by using the specified password. |
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Refresh | Refreshes the object and retrieves properties when the object is next accessed. (从 SqlSmoObject 继承。) |
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Regenerate(String) | Regenerates the database master key by using the specified new password. |
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Regenerate(String, Boolean) | Regenerates the database master key by using the specified new password, and with the option to force the regeneration, thus removing all items that cannot be successfully decrypted. |
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SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (从 SqlSmoObject 继承。) |
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ToString | Returns a String that represents the referenced object. (从 SqlSmoObject 继承。) |
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Validate | Validates the state of an object. (从 SmoObjectBase 继承。) |
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事件
名称 | 说明 | |
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PropertyChanged | Represents the event that occurs when a property is changed. (从 SqlSmoObject 继承。) |
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PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (从 SqlSmoObject 继承。) |
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显式接口实现
名称 | 说明 | |
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IAlienObject.Discover | Discovers any dependencies. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
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IAlienObject.GetDomainRoot | Returns the root of the domain. (从 SqlSmoObject 继承。) |
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IAlienObject.GetParent | Gets the parent of this object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
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IAlienObject.GetPropertyType | Gets the type of the specified property. (从 SqlSmoObject 继承。) |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. (从 SqlSmoObject 继承。) |
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IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
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IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (从 SqlSmoObject 继承。) |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (从 SqlSmoObject 继承。) |
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IAlienObject.SetPropertyValue | Sets the property value. (从 SqlSmoObject 继承。) |
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ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (从 SqlSmoObject 继承。) |
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ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that indicates whether the object supports design mode. 标识为仅供参考。不提供支持。不保证以后的兼容性。 |
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注释
A database master key is used to symmetrically encrypt keys and certificates that are stored in the database. A database master key can be encrypted by using the service master key or by using a user-specified password. When a database master key is created, a password must be supplied to encrypt and decrypt it.
When a database is attached to an instance of SQL Server, the database administrator must either supply the master key password or make an unencrypted copy of the master key that is available for encryption with the service master key.
The service master key is the top layer in the encryption hierarchy that is used to encrypt lower layers in the encryption hierarchy. The service master key is generated automatically by Windows. It can be opened only by the Windows service account under which it was created, or by a user who knows both the service account name and its password.
To get MasterKey object properties, users can be a member of the public fixed server role.
To set MasterKey object properties, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To create or drop a master key, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To open or regenerate a master key, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To add or drop service key encryption, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To drop a master key, users can be a member of the public fixed server role.
线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。
请参阅
参考
Microsoft.SqlServer.Management.Smo 命名空间