Clase MasterKey
The MasterKey object represents a SQL Server database master key.
Jerarquía de herencia
System.Object
Microsoft.SqlServer.Management.Smo.SmoObjectBase
Microsoft.SqlServer.Management.Smo.SqlSmoObject
Microsoft.SqlServer.Management.Smo.MasterKey
Espacio de nombres: Microsoft.SqlServer.Management.Smo
Ensamblado: Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)
Sintaxis
'Declaración
Public NotInheritable Class MasterKey _
Inherits SqlSmoObject _
Implements ISfcSupportsDesignMode, IDroppable
'Uso
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
El tipo MasterKey expone los siguientes miembros.
Constructores
Nombre | Descripción | |
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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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Propiedades
Nombre | Descripción | |
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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. (Se hereda de SqlSmoObject.) |
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State | Gets the state of the referenced object. (Se hereda de SmoObjectBase.) |
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Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Se hereda de SqlSmoObject.) |
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UserData | Gets or sets user-defined data associated with the referenced object. (Se hereda de SmoObjectBase.) |
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Métodos
Nombre | Descripción | |
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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. (Se hereda de SqlSmoObject.) |
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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 | (Se hereda de Object.) |
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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. (Se hereda de SqlSmoObject.) |
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GetContextDB | Gets the context database that is associated with this object. (Se hereda de SqlSmoObject.) |
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GetDBName | Gets the database name that is associated with the object. (Se hereda de SqlSmoObject.) |
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GetHashCode | (Se hereda de Object.) |
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GetPropValue | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetServerObject | Gets the server of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetType | (Se hereda de Object.) |
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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. (Se hereda de SqlSmoObject.) |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.) |
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IsObjectInitialized | Verifies whether the object has been initialized. (Se hereda de SqlSmoObject.) |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (Se hereda de SqlSmoObject.) |
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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. (Se hereda de SqlSmoObject.) |
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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. (Se hereda de SqlSmoObject.) |
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ToString | Returns a String that represents the referenced object. (Se hereda de SqlSmoObject.) |
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Validate | Validates the state of an object. (Se hereda de SmoObjectBase.) |
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Eventos
Nombre | Descripción | |
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PropertyChanged | Represents the event that occurs when a property is changed. (Se hereda de SqlSmoObject.) |
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PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (Se hereda de SqlSmoObject.) |
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Implementaciones de interfaces explícitas
Nombre | Descripción | |
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IAlienObject.Discover | Discovers any dependencies. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetDomainRoot | Returns the root of the domain. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetParent | Gets the parent of this object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetPropertyType | Gets the type of the specified property. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.) |
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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. (Se hereda de SqlSmoObject.) |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (Se hereda de SqlSmoObject.) |
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IAlienObject.SetPropertyValue | Sets the property value. (Se hereda de SqlSmoObject.) |
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ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (Se hereda de SqlSmoObject.) |
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ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that indicates whether the object supports design mode. Solamente se identifica con fines informativos. No compatible. La compatibilidad con versiones posteriores no está garantizada. |
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Comentarios
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.
Seguridad para subprocesos
Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.
Vea también
Referencia
Espacio de nombres Microsoft.SqlServer.Management.Smo