(SQL Server) Find a Certificate in the "Other People" Windows Certificate Store

Demonstrates how to open the "Current User --> Other People" Windows certificate store, and locates a certificate matching an email address.

Note: This example requires Chilkat v10.1.2 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
    -- Important: Do not use nvarchar(max).  See the warning about using nvarchar(max).
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @certStore int
    -- Use "Chilkat_9_5_0.CertStore" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.CertStore', @certStore OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- The "AddressBook" is the "Other People" certificate store as shown in certmgr.msc
    DECLARE @readOnly int
    SELECT @readOnly = 1
    DECLARE @success int
    EXEC sp_OAMethod @certStore, 'OpenWindowsStore', @success OUT, 'CurrentUser', 'AddressBook', @readOnly
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @certStore, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @certStore
        RETURN
      END

    -- Find the certificate for the email address:
    DECLARE @jsonE int
    -- Use "Chilkat_9_5_0.JsonObject" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.JsonObject', @jsonE OUT

    EXEC sp_OAMethod @jsonE, 'UpdateString', @success OUT, 'email', 'joe@example.com'

    DECLARE @cert int
    -- Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Cert', @cert OUT

    EXEC sp_OAMethod @certStore, 'FindCert', @success OUT, @jsonE, @cert
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @certStore, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @certStore
        EXEC @hr = sp_OADestroy @jsonE
        EXEC @hr = sp_OADestroy @cert
        RETURN
      END


    EXEC sp_OAGetProperty @cert, 'SubjectDN', @sTmp0 OUT
    PRINT 'Found certificate: ' + @sTmp0

    EXEC @hr = sp_OADestroy @certStore
    EXEC @hr = sp_OADestroy @jsonE
    EXEC @hr = sp_OADestroy @cert


END
GO