I’m using the 7.0.3 freeware version of PGP, and I wonder if it’s possible for several people to sign the same text one after the other. It’s meant as something of an endorsement thing: A is signing the message. B is verifying it, adds his name (or a comment or whatever) and signs the document signed by A, plus his endorsement. C gets this, adds his name, and signs it with his signature. And so on. In the end, it should be possible to verify A’s signature to the original text, and verify if every single of the multiple endorsements actually bears the signature of B, C, or whoever wrote it. Would this be possible in a convenient way?
I tried to type the text in editor, use the “sign current window” option, save it as a .txt file, and sign the file with another signature. This works out for up to only two different signatures, though. Using the “sign current window” option several times, OTOH, produces an ugly bunch of multiple signature blocks one framing the proceeding one, and even worse PGP’s verification option will only check the status of the last, overall signing. Any method how I could do this easily?