What's difference between COSE_Sign COSE_Sign0 COSE_Sign1

[hjian2017]

Hi,
I can find the difference between COSE_Sign and COSE_Sign1. But don't know what is COSE_Sign0.
Thanks.
Best.

[LudwigSeitz]

I think you found a typo. COSE_Sign0 is only mentioned once (in section 3.1) and i strongly suspect it should have been COSE_Sign1.

[hjian2017]

Hi @LudwigSeitz , thx so much for your reply. It confused me for a long time.
I can't believe it's a typo even I really agree on you.

[LudwigSeitz]

Since you found it I would let you take the credit if you want: https://www.rfc-editor.org/errata.php

[hjian2017]

Thanks :)

[jimsch]

It is a typo. THe structure was originally called COSE_Sign0 to match the encrypt and mac structures. I decided that this was not right since we are defining one signer here and renamed the structure to COSE_Sign1. I missed a spot.

[hjian2017]

Cool. "COSE_Sign1" makes sense. Unfortunately, most of opensource library still use "COSE_Sign0". @jimsch @mottigondabi