(SQL Server) Get the Certificate with Private Key from a Java KeyStore

See more Java KeyStore (JKS) Examples

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    -- This example requires the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    -- Most of the time a .jks contains one certificate with it's associated private key.
    -- (Similar to how a .pfx/.p12 usually contains a particular certificate with private key.)
    -- This example demonstrates how to get the certificate with private key such that it can be used
    -- by other Chilkat classes wherever a cert w/ private key is needed.
    DECLARE @jks int
    EXEC @hr = sp_OACreate 'Chilkat.JavaKeyStore', @jks OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @password nvarchar(4000)
    SELECT @password = 'secret'
    EXEC sp_OAMethod @jks, 'LoadFile', @success OUT, @password, 'qa_data/jks/test_secret.jks'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @jks, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jks
        RETURN
      END

    -- Make sure we have a private key.
    EXEC sp_OAGetProperty @jks, 'NumPrivateKeys', @iTmp0 OUT
    IF @iTmp0 < 1
      BEGIN

        PRINT 'No private key available.'
        EXEC @hr = sp_OADestroy @jks
        RETURN
      END

    -- -------------------------------------------------------------------------
    -- Get the certificate chain associated with the 1st (and probably only) private key in the JKS.

    DECLARE @chain int
    EXEC @hr = sp_OACreate 'Chilkat.CertChain', @chain OUT

    EXEC sp_OAMethod @jks, 'CertChainAt', @success OUT, 0, @chain
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @jks, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jks
        EXEC @hr = sp_OADestroy @chain
        RETURN
      END

    DECLARE @cert int
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OAMethod @chain, 'CertAt', @success OUT, 0, @cert
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @chain, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jks
        EXEC @hr = sp_OADestroy @chain
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- Verify again that this cert has a private key.
    EXEC sp_OAMethod @cert, 'HasPrivateKey', @iTmp0 OUT
    IF @iTmp0 <> 1
      BEGIN

        PRINT 'Certificate has no associated private key.'
        EXEC @hr = sp_OADestroy @jks
        EXEC @hr = sp_OADestroy @chain
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

    -- We now have the cert object with it's associated private key, and it can be used in other Chilkat classes where needed.
    -- For example..

    DECLARE @crypt int
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT

    EXEC sp_OAMethod @crypt, 'SetSigningCert', @success OUT, @cert
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @crypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @jks
        EXEC @hr = sp_OADestroy @chain
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @crypt
        RETURN
      END

    -- ...
    -- ...

    EXEC @hr = sp_OADestroy @jks
    EXEC @hr = sp_OADestroy @chain
    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @crypt


END
GO