GRANT Asymmetric Key Permissions (Transact-SQL)

Grants permissions on an asymmetric key.

Transact-SQL Syntax Conventions

Syntax

GRANT { permission  [ ,...n ] } 
    ON ASYMMETRIC KEY :: asymmetric_key_name 
       TO database_principal [ ,...n ]
    [ WITH GRANT OPTION ]
    [ AS granting_principal ]

Arguments

• permission
  Specifies a permission that can be granted on an asymmetric key. Listed below.

• ON ASYMMETRIC KEY **::**asymmetric_key_name
  Specifies the asymmetric key on which the permission is being granted. The scope qualifier "::" is required.

• database_principal
  Specifies the principal to which the permission is being granted. One of the following:

  • database user
  • database role
  • application role
  • database user mapped to a Windows login
  • database user mapped to a Windows group
  • database user mapped to a certificate
  • database user mapped to an asymmetric key
  • database user not mapped to a server principal.

• GRANT OPTION
  Indicates that the principal will also be given the ability to grant the specified permission to other principals.

• AS granting_principal
  Specifies a principal from which the principal executing this query derives its right to grant the permission. One of the following:

  • database user
  • database role
  • application role
  • database user mapped to a Windows login
  • database user mapped to a Windows group
  • database user mapped to a certificate
  • database user mapped to an asymmetric key
  • database user not mapped to a server principal.

Remarks

An asymmetric key is a database-level securable contained by the database that is its parent in the permissions hierarchy. The most specific and limited permissions that can be granted on an asymmetric key are listed below, together with the more general permissions that include them by implication.

Asymmetric Key permission	Implied by asymmetric key permission	Implied by database permission
CONTROL	CONTROL	CONTROL
TAKE OWNERSHIP	CONTROL	CONTROL
ALTER	CONTROL	ALTER ANY ASYMMETRIC KEY
REFERENCES	CONTROL	REFERENCES
VIEW DEFINITION	CONTROL	VIEW DEFINITION

Permissions

The grantor (or the principal specified with the AS option) must have either the permission itself with GRANT OPTION, or a higher permission that implies the permission being granted.

If using the AS option, these additional requirements apply.

AS granting_principal	Additional permission required
Database user	IMPERSONATE permission on the user, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database user mapped to a Windows login	IMPERSONATE permission on the user, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database user mapped to a Windows group	Membership in the Windows group, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database user mapped to a certificate	Membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database user mapped to an asymmetric key	Membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database user not mapped to any server principal	IMPERSONATE permission on the user, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Database role	ALTER permission on the role, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.
Application role	ALTER permission on the role, membership in the db_securityadmin fixed database role, membership in the db_owner fixed database role, or membership in the sysadmin fixed server role.

Object owners can grant permissions on the objects they own. Principals with CONTROL permission on a securable can grant permission on that securable.

Grantees of CONTROL SERVER permission, such as members of the sysadmin fixed server role, can grant any permission on any securable in the server. Grantees of CONTROL permission on a database, such as members of the db_owner fixed database role, can grant any permission on any securable in the database. Grantees of CONTROL permission on a schema can grant any permission on any object within the schema.

See Also

Reference

GRANT (Transact-SQL)
CREATE CERTIFICATE (Transact-SQL)
CREATE ASYMMETRIC KEY (Transact-SQL)
CREATE APPLICATION ROLE (Transact-SQL)

Other Resources

Permissions
Principals

Help and Information

Getting SQL Server 2005 Assistance