On Mon, Jun 27, 2016 at 10:48:54AM -0700, Claus Assmann wrote:
> mutt/gpg gives me a "BAD signature" for some recent mails on the
> openssl users list, one example message is attached. Can someone
> else reproduce the problem (the author says it verifies for him)?
> If the signature verifies for you, which mutt / gpg version do you
> use? (and any hints what might be broken in my setup?)
> 
> Mutt 1.5.24+24 (4de4b3635140) (2015-08-30)
> gpg (GnuPG) 1.4.19

Does it verify when he receives a copy from the list?

I saved the signature and text part of the email separately, and also
get bad signature with gpg2 via commandline (and no extra info that
might explain it).

So wondering if the list manager software is just mangling part of the
message or something.

aura% gpg --version
gpg (GnuPG) 2.1.11
libgcrypt 1.6.5
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Home: ~/.gnupg
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
        CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2

aura% gpg --verify mc1.txt.asc        
gpg: assuming signed data in 'mc1.txt'
gpg: Signature made Mon Jun 27 01:21:55 2016 PDT using RSA key ID 0E604491
gpg: BAD signature from "Matt Caswell <m...@openssl.org>" [unknown]

aura% gpg -kv 0x0E604491        
gpg: using PGP trust model
pub   rsa2048/0E604491 2013-04-30 [SC]
uid         [ unknown] Matt Caswell <m...@openssl.org>
uid         [ unknown] Matt Caswell <fr...@baggins.org>
sub   rsa2048/E3C21B70 2013-04-30 [E]

aura% sha256 mc1.txt
SHA256 (mc1.txt) =
4801ffad1605f599baba0b93b51048b8569c2459764eebafb4fff38ee5a97080

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