Signs text with a certificate and returns the signature.
SignByCert ( certificate_ID , @cleartext [ , 'password' ] )
Is the ID of a certificate in the current database. certificate_ID is int.
Is a variable of type nvarchar, char, varchar, or nchar that contains data that will be signed.
' password '
Is the password with which the certificate's private key was encrypted. password is nvarchar(128).
varbinary with a maximum size of 8,000 bytes.
Requires CONTROL permission on the certificate.
The following example signs the text in
@SensitiveData with certificate
ABerglundCert07, having first decrypted the certificate with password "pGFD4bb925DGvbd2439587y". It then inserts the cleartext and the signature in table
DECLARE @SensitiveData nvarchar(max); SET @SensitiveData = N'Saddle Price Points are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29'; INSERT INTO [SignedData04] VALUES( N'data signed by certificate ''ABerglundCert07''', @SensitiveData, SignByCert( Cert_Id( 'ABerglundCert07' ), @SensitiveData, N'pGFD4bb925DGvbd2439587y' )); GO