Problem decrypting a mail with an OpenPGP card

3 msg	Verifying Signatures in a Script
15 msg	decrypt : primary key or subkey ?
1 msg	Unerwartetes IPC Kommando
3 msg	initial GnuPG install?
1 msg	Re: gpg and cron
2 msg	[Fwd: Re: decrypt and secret key location]

Problem decrypting a mail with an OpenPGP card
\ Michael Bienia (4 Jun 2007)

3 msg	Question about check command
4 msg	decrypt and secret key location
2 msg	PLEASE UNSUSCRIBE ME
6 msg	Can't generate new keys
1 msg	new (2007-05-27) keyanalyze results (+sigcheck)
2 msg	SmartCards and Debian Lenny
10 msg	setting expiration dates
4 msg	Re-establish keys
3 msg	Windows commandline abnormality
2 msg	gpg and crpn
2 msg	Several questions about SmartCards
1 msg	Having trouble building rpm of 1.4.7
15 msg	Can't run GPG --recv-keys under Windows Vista.

Subject:	Problem decrypting a mail with an OpenPGP card
Group:	Gnupg-users
From:	Michael Bienia
Date:	4 Jun 2007

Hello,

I've got three mails (from the same person) with my signed key (one for
each uid). I can decrypt two of the three mails but not the third:

$ gpg broken-gpg.mail
gpg: sending command `SCD PKDECRYPT' to agent failed: ec=6.131
gpg: encrypted with 1024-bit RSA key, ID AF58F2B4, created 2006-03-13
"Michael Bienia <michael>"
gpg: public key decryption failed: general error
gpg: decryption failed: secret key not available

$ gpg2 broken-gpg.mail
gpg: encrypted with 1024-bit RSA key, ID AF58F2B4, created 2006-03-13
"Michael Bienia <michael>"
gpg: public key decryption failed: Conditions of use not satisfied
gpg: decryption failed: No secret key

gpg is version 1.4.6, gpg2 is version 2.0.4 and I'm running Ubuntu
feisty. I'm using the gpg-agent but I've also tried without the agent
but it failed also.

What could be the problem?

Here is the output for one of the working mails:

$ gpg2 -vv good-gpg.mail
gpg: armor: BEGIN PGP MESSAGE
Version: GnuPG v1.4.6 (GNU/Linux)
:pubkey enc packet: version 3, algo 1, keyid FB50DDA4AF58F2B4
data: [1024 bits]
gpg: armor header:
gpg: public key is AF58F2B4
gpg: using subkey AF58F2B4 instead of primary key 968BD587
gpg: public key encrypted data: good DEK
:encrypted data packet:
length: unknown
mdc_method: 2
gpg: using subkey AF58F2B4 instead of primary key 968BD587
gpg: encrypted with 1024-bit RSA key, ID AF58F2B4, created 2006-03-13
"Michael Bienia <michael>"
gpg: AES256 encrypted data
:compressed packet: algo=3
:literal data packet:
mode b (62), created 1180971809, name="",
raw data: unknown length
gpg: original file name=''
gpg: good-gpg.mail: unknown suffix

and here for the non-working mail:

$ gpg2 -vv broken-gpg.mail
gpg: armor: BEGIN PGP MESSAGE
Version: GnuPG v1.4.6 (GNU/Linux)
:pubkey enc packet: version 3, algo 1, keyid FB50DDA4AF58F2B4
data: [1013 bits]
gpg: armor header:
gpg: public key is AF58F2B4
gpg: using subkey AF58F2B4 instead of primary key 968BD587
:encrypted data packet:
length: unknown
mdc_method: 2
gpg: using subkey AF58F2B4 instead of primary key 968BD587
gpg: encrypted with 1024-bit RSA key, ID AF58F2B4, created 2006-03-13
"Michael Bienia <michael>"
gpg: public key decryption failed: Conditions of use not satisfied
gpg: decryption failed: No secret key

Michael

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