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Re: [openpgp] [RFC4880bis PATCH] WIP: bind wire format representations to specific pubkey algorithms

2021-06-05 12:55:49
Hi Florian--

On Sat 2021-06-05 18:03:14 +0200, Florian Weimer wrote:
* Daniel Kahn Gillmor:

The OpenPGP standard is in a bit of a mess when it comes to wire
formats for public key algorithms.

There are not infrequent reports of interoperability problems (most
recently https://dev.gnupg.org/T5464), and difficulties for
implementers in understanding what is expected.

I think this issue also affects RSA data because the way OpenPGP
specifies the operations, they are octet strings of a specific length,
not integers, and may including leading zero bytes.

This is an unsettling message, but I'm not sure I understand what you
mean.  Can you provide a specific example?

Do you think the text of the draft needs to be updated to clarify RSA as
well?

        --dkg

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