(SQL Server) Example: Crypt2.SetDecryptCert method

Demonstrates how to call the SetDecryptCert method.

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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @cert int
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    DECLARE @success int
    EXEC sp_OAMethod @cert, 'LoadPfxFile', @success OUT, 'c:/pfx_files/my.pfx', 'password'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @cert, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END

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

    EXEC sp_OASetProperty @decrypt, 'CryptAlgorithm', 'pki'

    EXEC sp_OAMethod @decrypt, 'SetDecryptCert', @success OUT, @cert
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @decrypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @decrypt
        RETURN
      END

    DECLARE @bd int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bd OUT

    EXEC sp_OAMethod @bd, 'LoadFile', @success OUT, 'c:/someDir/pkcs7_encrypted.dat'

    EXEC sp_OAMethod @decrypt, 'DecryptBd', @success OUT, @bd
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @decrypt, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @cert
        EXEC @hr = sp_OADestroy @decrypt
        EXEC @hr = sp_OADestroy @bd
        RETURN
      END

    -- bd contains the decrypted content.

    EXEC @hr = sp_OADestroy @cert
    EXEC @hr = sp_OADestroy @decrypt
    EXEC @hr = sp_OADestroy @bd


END
GO