decryption failure

[Christoph Hertel]

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Hello again,

My friend, a fairly novice linux user, made himself a GnuPG key.
Whenever I encrypt something for him, he can't encrypt it. He's got a
2048-bit ELG-E key and GnuPG v1.0.1 on a SuSE 6.2 distro.

When he invokes 'gpg --decrypt encrypted.txt.gpg' and enters his
passphrase, he waits a few seconds (he really cherishes that 1xx MHz
P5 :-) and is thrown back to his prompt. No decrypted text on stdout or
in a text file. Nothing.

When he invokes the same with '-vvv' he gets something like:
user: "[....]
-----
2048-bit ELG-E key, ID 6B0CD225, created 2000-07-11 (main key ID
2BD65A2B)

gpg: loaded digest 3
gpg: key 2BD65A2B: accepted as trusted key.
gpg: public key encrypted data: good DEK
:unknown packet: type 18, length 0
dump: 01 3d f0 bc [...]
-----
What follows is a long list of hex-values. (This was transcribed per
hand, so there may be small errors)

I don't think (hope) I have a corrupted copy of his key. I received
three copies, which I could import without problems.

I also tried to decrypt a file encrypted for him. I didn't get the usual
'no secret key for decryption available', but (with the -vvv option):
-----
:pubkey enc packet: version 3, algo 16, keyid 1021586A6B0CD225
        data: [2047 bits]
        data: [2045 bits]
gpg: public key is 6B0CD225
gpg: loaded digest 2
:encrypted data packet:
        length: 96
        mdc_method: 2
gpg: encrypted with 2048-bit ELG-E key, ID 6B0CD225, created 2000-07-11
      "[name + e-mail-address]"
gpg: no secret key for decryption available
gpg: decryption failed: secret key not available
:user ID packet:
"\x8di^\x9b\x08\xfb\x83>\xd9\x7e\xdb\xc8\x12\xc3\xcb\x0bv\x91\xe9\x8c\xfd\x=
7c\xf
+d\xb4\x92J\x9a\x9d\xd8\xc7;\x13\x8b\x0eDe2[\xb2\x9fF\x9c\xdc\x90,\xdai\xd6=
\x14\
+xd5\x7e\x89\x9d\xf5\x80\xd6\x1f,\xc1J\xca\xde9\x13\xc9T\xe3%\xd3-\xee\x82\=
x9fj\
+xf86\x0af\x00\x93F\xb7A\xf7"
gpg: decrypt_message failed: unexpected data
-----

However, files signed by him can be succesfully verified.

Does anyone knows what to do? Do you need further information?


Thank You,

Christoph
--=20
PGP (GnuPG) encrypted mail welcome! (Key 0xBAC8E4D5)

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Version: GnuPG v1.0.4 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE6FmJUQiQTYbrI5NURAsRwAJ9IQP4jSTvlWOCw9nfpKTUVczK9CACfb25a
hsxT8T6jmcN+/1+l7qEnwOc=
=qbhW
-----END PGP SIGNATURE-----

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