clearsign failed: Bad signature

Chris Ruff jcruff at
Fri Dec 17 17:22:37 CET 2010

On Sat, 2010-12-11 at 14:57 +0100, Olav Seyfarth wrote:

> My key: OpenPGP SmartCard v2 key 0x6AE1EF56 (3072 Bit RSA) Card 0005 00000222
> Why can't I use SHA256/SHA512 with this card?
> | enable-dsa2
> is set and showpref lists

The documentation for OpenPGP v2 smartcard states that only RIPEMD-160 &
SHA-1 are supported as a digest algorithm at this point in time.  You'll
have to change your digest prefs accordingly to use the card.

excert from doc:

"Cards with Version < 2.0 sup­port RIPEMD-160 and SHA-1 only and may
check it, so other hash algorithms cannot be

Although I assume it should say =<2.0.  Feedback from others if this was
a typo in teh doc and should be =<2.0?

Chris Ruff
email: jcruff at
gpg key: 0xDD55B6FC
gpg fgpr: 1BA1 71D7 ADA7 1E8B 1623
          A43D 283B 2F81 BDD5 B810

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