SQL Server

Import an SSH Key to an HSM using PKCS11

See more PKCS11 Examples

Demonstrates how to import an SSH private key to an HSM (smartcard or token).

Note: This example requires Chilkat v9.5.0.96 or later.

SQL Server

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr 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.

    -- Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

    DECLARE @pkcs11 int
    EXEC @hr = sp_OACreate 'Chilkat.Pkcs11', @pkcs11 OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- Use the PKCS11 driver (.dll, .so, .dylib) for your particular HSM.
    -- For example:
    EXEC sp_OASetProperty @pkcs11, 'SharedLibPath', 'C:/Program Files (x86)/Gemalto/IDGo 800 PKCS#11/IDPrimePKCS11.dll'

    -- Use your HSM's PIN.
    DECLARE @pin nvarchar(4000)
    SELECT @pin = '0000'

    -- Normal user = 1
    DECLARE @userType int
    SELECT @userType = 1

    -- Establish a logged-on user session with the HSM.
    EXEC sp_OAMethod @pkcs11, 'QuickSession', @success OUT, @userType, @pin
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @pkcs11, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @pkcs11
        RETURN
      END

    -- Create a PKCS11 template for importing the SSH key.
    DECLARE @jsonTemplate int
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonTemplate OUT

    -- Indicate the key is to be stored on the token (i.e. it is not a session-only key)
    EXEC sp_OAMethod @jsonTemplate, 'UpdateBool', @success OUT, 'token', 1
    -- The key should have the ability to sign
    EXEC sp_OAMethod @jsonTemplate, 'UpdateBool', @success OUT, 'sign', 1

    -- Let's provide a few attributes to help us find the this key at a later time.
    -- See SSH Public-Key Authentication using an HSM

    -- The ID is byte data, so it should be base64 or hex.
    -- Specify "id" if passing base64 data, "id_hex" for hexidecimal, or "id_ascii" for directly copying the ascii bytes of the string.
    -- You can provide any ID of your choice.  It is optional.
    EXEC sp_OAMethod @jsonTemplate, 'UpdateString', @success OUT, 'id_hex', '0A0B0C0D01020304'

    -- Optionally specify a label.
    EXEC sp_OAMethod @jsonTemplate, 'UpdateString', @success OUT, 'label', 'MySshKey'

    -- Load the SSH key to be imported to the HSM (smartcard or token)
    DECLARE @sshKey int
    EXEC @hr = sp_OACreate 'Chilkat.SshKey', @sshKey OUT

    EXEC sp_OASetProperty @sshKey, 'Password', 'password_of_the_encrypted_ppk_file'
    DECLARE @ppkContents nvarchar(4000)
    EXEC sp_OAMethod @sshKey, 'LoadText', @ppkContents OUT, 'c:/my_ssh_keys/someSshKey.ppk'
    EXEC sp_OAMethod @sshKey, 'FromPuttyPrivateKey', @success OUT, @ppkContents
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @sshKey, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @pkcs11
        EXEC @hr = sp_OADestroy @jsonTemplate
        EXEC @hr = sp_OADestroy @sshKey
        RETURN
      END

    -- Import the SSH private key onto the HSM.
    -- The PKCS11 handle to the imported private key is returned.
    -- A 0 is returned on failure.
    DECLARE @privKeyHandle int
    EXEC sp_OAMethod @pkcs11, 'ImportSshKey', @privKeyHandle OUT, @sshKey, @jsonTemplate
    IF @privKeyHandle = 0
      BEGIN
        EXEC sp_OAGetProperty @pkcs11, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @pkcs11
        EXEC @hr = sp_OADestroy @jsonTemplate
        EXEC @hr = sp_OADestroy @sshKey
        RETURN
      END

    -- The private key handle is only valid during the PKCS11 session.
    -- If you wish to use the private key in another PKCS11 session,
    -- you'll first need to find it.  See  SSH Public-Key Authentication using a Smartcard

    PRINT 'private key handle: ' + @privKeyHandle


    PRINT 'Successfully imported the SSH key onto the HSM.'

    EXEC sp_OAMethod @pkcs11, 'Logout', @success OUT
    EXEC sp_OAMethod @pkcs11, 'CloseSession', @success OUT

    EXEC @hr = sp_OADestroy @pkcs11
    EXEC @hr = sp_OADestroy @jsonTemplate
    EXEC @hr = sp_OADestroy @sshKey


END
GO