gpg: keydb_search failed: Broken pipe

[Niibe Yutaka]

 On Sun, 25 Apr 2021 16:41, William Holmes said:
> I encrypted the file with '--hidden-recipient'.
> After decryption failed, gpg-agent was killed.

This is because there is a bug for decryption of anon recipient.

The size of input for decryption should be checked.  So far, we only
have Curve25519 for Montgomery curve.  With X448, we have another
Montgomery curve.  That's the reason.

Werner Koch wrote:
> We will have a solution soon.

Fixed in libgcrypt master by the commit:

	060c378c050e7ec6206358c681a313d6e1967dcf
--