macOS How to sign a code on OSX 10.4

[maengyi]

Hello,

I got a problem with codesign. I working on a application which is running on 10.4.
And I have to sign my code. I know there is a command-line tool "codesign".
But it only works from 10.5.

So my question is
Is there any way to sign a code on 10.4. (I think the anwser must be YES)
What is the typical way to sign a code before 10.5?

Thanks a lot.

 

[robbieduncan]

As Apple state in their in-depth tech note: "Starting with Mac OS X 10.5 Leopard, Apple has provided you with the tools necessary to sign your programs"