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MasterKey Class

The MasterKey object represents a SQL Server database master key.

Inheritance Hierarchy

System.Object
  Microsoft.SqlServer.Management.Smo.SmoObjectBase
    Microsoft.SqlServer.Management.Smo.SqlSmoObject
      Microsoft.SqlServer.Management.Smo.MasterKey

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

Syntax

'Declaration
Public NotInheritable Class MasterKey _
    Inherits SqlSmoObject _
    Implements ISfcSupportsDesignMode, IDroppable
'Usage
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

The MasterKey type exposes the following members.

Constructors

  Name Description
Public method MasterKey() Initializes a new instance of the MasterKey class.
Public method MasterKey(Database) Initializes a new instance of the MasterKey class on the specified database.

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Properties

  Name Description
Public property CreateDate Gets the date and time when the master key was created.
Public property DateLastModified Gets the date and time when the master key was last modified.
Protected property ExecuteForScalar Gets or sets the Boolean property value that specifies whether the object is set to the execute for scalar option. (Inherited from SqlSmoObject.)
Public property 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.
Public property IsOpen Gets the Boolean property value that specifies whether the database master key is open.
Protected property IsTouched Gets the Boolean property value that specifies whether the object properties have been updated but not yet persisted on the server. (Inherited from SqlSmoObject.)
Protected property ObjectInSpace Gets the Boolean property value that specifies whether the object exists in isolation, or whether it is directly or indirectly connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Public property Parent Gets the Database object that is the parent of the MasterKey object.
Public property Properties Gets a collection of Property objects that represent the object properties. (Inherited from SqlSmoObject.)
Protected property ScalarResult Gets the scalar result for the referenced object. (Inherited from SqlSmoObject.)
Public property State Gets the state of the referenced object. (Inherited from SmoObjectBase.)
Public property Urn Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Inherited from SqlSmoObject.)
Public property UserData Gets or sets user-defined data associated with the referenced object. (Inherited from SmoObjectBase.)

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Methods

  Name Description
Protected method AddDatabaseContext(StringCollection) Add the database context to the collection of queries identified by the queries parameter. (Inherited from SqlSmoObject.)
Protected method AddDatabaseContext(StringCollection, ScriptingOptions) Add the database context to the collection of queries identified by the queries parameter, and using the specified scripting options. (Inherited from SqlSmoObject.)
Public method AddPasswordEncryption Adds password encryption to the master key.
Public method AddServiceKeyEncryption Adds service key encryption to the master key.
Protected method AlterImpl Activates the object altered event. (Inherited from SqlSmoObject.)
Protected method AlterImplFinish Method called when object altered event finishes. (Inherited from SqlSmoObject.)
Protected method AlterImplInit Method called when object-altered event is intialized. (Inherited from SqlSmoObject.)
Protected method AlterImplWorker Calls the Alter methods. (Inherited from SqlSmoObject.)
Protected method BindDefaultImpl Binds the default items identified by the parameters. (Inherited from SqlSmoObject.)
Protected method BindRuleImpl Binds the rule schema to the rule and columns identified by the parameters. (Inherited from SqlSmoObject.)
Protected method CheckCollation Checks the order of the scripting options by the collation method identified by the collationName parameter. (Inherited from SqlSmoObject.)
Protected method CheckObjectState() Validates the state of the referenced object. (Inherited from SqlSmoObject.)
Protected method CheckObjectState(Boolean) Validates the state of the referenced object with the option to specify that an exception is thrown if the object is not yet created. (Inherited from SqlSmoObject.)
Protected method CheckObjectStateImpl Checks the state of a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method CheckVersion100 Checks whether version of SQL Server is SQL Server 2008. (Inherited from SqlSmoObject.)
Protected method CheckVersion80 Checks the validity of the object on SQL Server 2000. (Inherited from SqlSmoObject.)
Protected method CheckVersion80SP3 Checks the validity of the object on SQL Server 2000 SP3. (Inherited from SqlSmoObject.)
Protected method CheckVersion90 Check the validity of the object on SQL Server 2005. (Inherited from SqlSmoObject.)
Protected method CheckVersionBelow90 Checks whether version of SQL Server is before SQL Server 2005. (Inherited from SqlSmoObject.)
Protected method CleanObject Sets the object to unmodified state. (Inherited from SqlSmoObject.)
Public method Close Closes the master key.
Public method Create(String) Creates a master key that has the specified password.
Public method Create(String, String, String) Creates a master key from the specified file and that has the specified encryption and decryption passwords.
Protected method CreateImpl Creates an object with scripting options. (Inherited from SqlSmoObject.)
Protected method CreateImplFinish Method called when the create event finishes. (Inherited from SqlSmoObject.)
Protected method CreateImplInit Method called when the create event initializes. (Inherited from SqlSmoObject.)
Public method Discover Discovers a list of type Object. (Inherited from SqlSmoObject.)
Public method Drop Removes the master key from the database.
Protected method DropImpl Drops a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method DropImplWorker Calls the drop methods. (Inherited from SqlSmoObject.)
Public method DropPasswordEncryption Removes the password encryption from the master key by using the associated password.
Public method DropServiceKeyEncryption Drops service key encryption from the master key.
Public method EnumKeyEncryptions Enumerates a list of the current set of key encryptions for the database master key.
Protected method EnumScriptImpl Enumerates scripts specified by the so parameter. (Inherited from SqlSmoObject.)
Protected method EnumScriptImplWorker Calls the methods that enumerate scripts specified by the so parameter. (Inherited from SqlSmoObject.)
Protected method EnumScriptImplWorkerSOChanged Returns an IEnumerable string describing the scripting options for an object. (Inherited from SqlSmoObject.)
Public method Equals (Inherited from Object.)
Protected method ExecuteNonQuery Executes a batch in the context of the database where there are no results returned. (Inherited from SqlSmoObject.)
Public method Export Saves the database master key to the specified system path location by using the specified password.
Protected method Finalize (Inherited from Object.)
Protected method FormatSqlVariant Formats an object as SqlVariant type. (Inherited from SqlSmoObject.)
Protected method GenerateDataSpaceFileStreamScript Generates a script to create data file. (Inherited from SqlSmoObject.)
Protected method GenerateDataSpaceScript Generates a script to allocate space in the data file. (Inherited from SqlSmoObject.)
Protected method GetBindDefaultScript Gets the script that binds defaults specified by the defSchema and defName parameters. (Inherited from SqlSmoObject.)
Protected method GetBindRuleScript Gets the script that specifies the binding rules. (Inherited from SqlSmoObject.)
Protected method GetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32%) Assigns a Boolean parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean) Assigns a Boolean property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetDateTimeParameter Assigns the datetime property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetDateTimeParameterAsInt Assigns the datetime property of the SqlSmoObject as an integer value if the datetime property is not null. (Inherited from SqlSmoObject.)
Protected method GetDBName Gets the database name that is associated with the object. (Inherited from SqlSmoObject.)
Protected method GetEnumParameter Assigns an enumeration property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetFragOptionString Gets a FragmentationOption object as a string value. (Inherited from SqlSmoObject.)
Protected method GetGuidParameter Assigns a Guid property of the SqlSmoObject. (Inherited from SqlSmoObject.)
Public method GetHashCode (Inherited from Object.)
Protected method GetParameter(StringBuilder, ScriptingOptions, String, String, Int32%) Assigns a parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean) Assigns a parameter of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method GetPropValue Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetPropValueOptional Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetPropValueOptionalAllowNull Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetRealValue Gets a property value of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetScriptingOptionsForCreate Gets ScriptingOptions for the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetServerName Gets the name of the instance of SQL Server with which the object is associated. (Inherited from SqlSmoObject.)
Protected method GetServerObject Gets the server of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetSqlServerVersionName Gets the version name of the instance of SQL Server with which the object is associated. (Inherited from SqlSmoObject.)
Protected method GetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32%) Assigns a string parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean) Assigns a string parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetTimeSpanParameterAsInt Assigns a time span parameter of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public method GetType (Inherited from Object.)
Protected method GetUrnRecursive(StringBuilder) Assigns an Urn object of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method GetUrnRecursive(StringBuilder, UrnIdOption) Assigns an Urn object of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Protected method ImplInitialize Initializes the fields of the SqlSmoObject object. (Inherited from SqlSmoObject.)
Public method 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.
Public method 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.
Public method Initialize() Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Public method Initialize(Boolean) Initializes the object and forces the properties be loaded. (Inherited from SqlSmoObject.)
Protected method IsObjectDirty Verifies whether the object properties have been modified and the changes have not yet been persisted on the instance of SQL Server. (Inherited from SqlSmoObject.)
Protected method IsObjectInitialized Verifies whether the object has been initialized. (Inherited from SqlSmoObject.)
Protected method IsObjectInSpace Verifies whether the object is isolated or connected to the instance of SQL Server. (Inherited from SqlSmoObject.)
Protected method IsVersion80SP3 Determines whether the version of SQL Server is SQL Server 2000 with SP3. (Inherited from SqlSmoObject.)
Protected method IsVersion90AndAbove Determines whether the version of SQL Server is SQL Server 2005 or later. (Inherited from SqlSmoObject.)
Protected method MarkDropped Sets the SqlSmoState to dropped. (Inherited from SqlSmoObject.)
Protected method MarkForDropImpl Sets the SqlSmoState to dropped. (Inherited from SqlSmoObject.)
Protected method MemberwiseClone (Inherited from Object.)
Public method Open Opens the database master key by using the specified password.
Protected method PostAlter Method activated after the SqlSmoObject is altered. (Inherited from SqlSmoObject.)
Protected method PostCreate Method activated after the SqlSmoObject is created. (Inherited from SqlSmoObject.)
Protected method PostDrop Method activated after the SqlSmoObject is dropped. (Inherited from SqlSmoObject.)
Public method Refresh Refreshes the object and retrieves properties when the object is next accessed. (Inherited from SqlSmoObject.)
Public method Regenerate(String) Regenerates the database master key by using the specified new password.
Public method 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.
Protected method ScriptAlter Alters the SqlSmoObject according to the parameters. (Inherited from SqlSmoObject.)
Protected method ScriptCreate Alters the SqlSmoObject according to the parameters. (Inherited from SqlSmoObject.)
Protected method ScriptDdl Throws InvalidSmoOperationException. (Inherited from SqlSmoObject.)
Protected method ScriptDrop Throws InvalidSmoOperationException. (Inherited from SqlSmoObject.)
Protected method ScriptImpl() Gets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method ScriptImpl(ScriptingOptions) Gets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method ScriptImplWorker Gets a collection of scripts of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method SetParentImpl Sets the parent of the SqlSmoObject to the newParent parameter. (Inherited from SqlSmoObject.)
Public method ToString Returns a String that represents the referenced object. (Inherited from SqlSmoObject.)
Protected method TouchImpl Not implemented. (Inherited from SqlSmoObject.)
Protected method UnbindDefaultImpl Unbinds the default columns of the SqlSmoObject. (Inherited from SqlSmoObject.)
Protected method UnbindRuleImpl Unbinds rules of the SqlSmoObject. (Inherited from SqlSmoObject.)
Public method Validate Validates the state of an object. (Inherited from SmoObjectBase.)

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Events

  Name Description
Public event PropertyChanged Represents the event that occurs when a property is changed. (Inherited from SqlSmoObject.)
Public event PropertyMetadataChanged Represents the event that occurs when property metadata changes. (Inherited from SqlSmoObject.)

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Fields

  Name Description
Protected field m_ExtendedProperties Represents a property that is defined to extend the properties provided by a SqlSmoObject. (Inherited from SqlSmoObject.)
Protected field singletonParent Represents the singleton parent. (Inherited from SqlSmoObject.)

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Explicit Interface Implementations

  Name Description
Explicit interface implemetationPrivate method IAlienObject.Discover Discovers any dependencies. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.GetDomainRoot Returns the root of the domain. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.GetParent Gets the parent of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.GetPropertyType Gets the type of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.GetPropertyValue Gets the value of the specified property. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.GetUrn Gets the Unified Resource Name of the object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.Resolve Gets the instance that contains the information about the object from the Unified Resource Name of the object. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.SetObjectState Sets the object state to the specified SfcObjectState value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method IAlienObject.SetPropertyValue Sets the property value. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate method ISfcPropertyProvider.GetPropertySet Gets the interface reference to the set of properties of this object. Do not reference this member directly in your code. It supports the SQL Server infrastructure. (Inherited from SqlSmoObject.)
Explicit interface implemetationPrivate property ISfcSupportsDesignMode.IsDesignMode Gets a Boolean value that indicates whether the object supports design mode. Identified for informational purposes only. Not supported. Future compatibility is not guaranteed.

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Remarks

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.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.