drop-cryptographic-provider-transact-sql.md

title	DROP CRYPTOGRAPHIC PROVIDER (Transact-SQL)
description	DROP CRYPTOGRAPHIC PROVIDER (Transact-SQL)
author	VanMSFT
ms.author	vanto
ms.date	03/14/2017
ms.service	sql
ms.subservice	t-sql
ms.topic	reference
f1_keywords	DROP CRYPTOGRAPHIC PROVIDER DROP_CRYPTOGRAPHIC_PROVIDER_TSQL
helpviewer_keywords	DROP CRYPTOGRAPHIC PROVIDER statement
dev_langs	TSQL

DROP CRYPTOGRAPHIC PROVIDER (Transact-SQL)

[!INCLUDE sql-asdbmi]

Drops a cryptographic provider within [!INCLUDEssNoVersion].

:::image type="icon" source="../../includes/media/topic-link-icon.svg" border="false"::: Transact-SQL syntax conventions

Syntax

DROP CRYPTOGRAPHIC PROVIDER provider_name   

Arguments

provider_name
Is the name of the Extensible Key Management provider.

Remarks

To delete an Extensible Key Management (EKM) provider, all sessions that use the provider must be stopped.

An EKM provider can only be dropped if there are no credentials mapped to it.

If there are keys mapped to an EKM provider when it is dropped the GUIDs for the keys remain stored in [!INCLUDEssNoVersion]. If a provider is created later with the same key GUIDs, the keys will be reused.

Permissions

Requires CONTROL permission on the symmetric key.

Examples

The following example drops a cryptographic provider called SecurityProvider.

/* First, disable provider to perform the upgrade.  
This will terminate all open cryptographic sessions. */  
ALTER CRYPTOGRAPHIC PROVIDER SecurityProvider   
SET ENABLED = OFF;  
GO  
/* Drop the provider. */  
DROP CRYPTOGRAPHIC PROVIDER SecurityProvider;  
GO  

See Also

Extensible Key Management (EKM)
CREATE CRYPTOGRAPHIC PROVIDER (Transact-SQL)
ALTER CRYPTOGRAPHIC PROVIDER (Transact-SQL)
CREATE SYMMETRIC KEY (Transact-SQL)