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1.4.10rc1 and v2 OpenPGP cards/3072 bit keys

 

 

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dsuch at gefira

Aug 30, 2009, 9:07 AM

Post #1 of 2 (417 views)
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1.4.10rc1 and v2 OpenPGP cards/3072 bit keys

> Noteworthy changes in version 1.4.10 (unreleased)
> -------------------------------------------------
>
> * Support v2 OpenPGP cards.

Hello,

I have successfully created 2048 bit RSA keys with a v2 OpenPGP card
from kernelconcepts, using an SCM SCR-335 reader. I have no problems
with signing, verification and encrypting & decrypting.

However, I cannot decrypt a message encrypted with a 3072b key, also
generated on-card. I'm 100% sure I'm entering a correct PIN but still
1.4.10rc1 gives me

gpg: public key decryption failed: general error
gpg: decryption failed: secret key not available

in the end. It works flawlessly with a 2048 bit key.

I'm using 1.4.10rc1 from here
ftp://ftp.gnupg.org/gcrypt/alpha/gnupg/gnupg-1.4.10rc1.tar.bz2

I've attached complete --debug-all sessions for both 2048 and 3072 keys.
I'd be happy to provide more information if it's needed but I'd need
some hints for what to do next.

thanks,

--
Dariusz Suchojad
Attachments: v20-2048.txt.bz2 (6.73 KB)
  v20-3072.txt.bz2 (7.25 KB)


wk at gnupg

Sep 2, 2009, 10:35 AM

Post #2 of 2 (368 views)
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Re: 1.4.10rc1 and v2 OpenPGP cards/3072 bit keys [In reply to]

On Sun, 30 Aug 2009 18:07, dsuch [at] gefira said:

> However, I cannot decrypt a message encrypted with a 3072b key, also
> generated on-card. I'm 100% sure I'm entering a correct PIN but still

I can confirm that. It seems there are actually two problems: One bug
in gpg and afaics a bug in the card. I track the problem at

https://bugs.g10code.com/gnupg/issue1114



Salam-Shalom,

Werner

--
Die Gedanken sind frei. Auschnahme regelt ein Bundeschgesetz.


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