import key failure, apparent bug

[Joshua Hudson]

Yup; which does explain everything and apparently some libraries
think optional and some don't.

On 5/29/2026 4:45 AM, Werner Koch wrote:
> Hi!
>
> A closer inspection shows that the key is missing the 2 checksum bytes.
> According to the specs (RFC-4880 or LibrePGP):
>
>     *  If the string-to-key usage octet is zero or 255, then a two-octet
>        checksum of the plaintext of the algorithm-specific portion (sum
>        of all octets, mod 65536).
>
> A string-to-key usage octet of zero means unencrypted key material.
>
>
> Shalom-Salam,
>
>     Werner
>
>