Strange decryption problem (block_filter read error)

[Alexander W. Janssen]

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Hi all,

I noticed a strange problem which occurred now three or maybe four
times, all under different circumstances.

I was using my Openpgp Smartcard to encrypt a file (size about 1.4 MB)
to someone else and to my key as well.

When I wanted to access the very same encrypted file to check if I was
able to decrypt it, I got this error:

...
gpg: block_filter 00B36A38: read error (size=9277,a->size=9277)
gpg: Problem reading source (16560 bytes remaining)
gpg: handle plaintext failed: file read error
gpg: mdc_packet with invalid encoding
gpg: decryption failed: invalid packet
gpg: block_filter: pending bytes!

It decrypted parts of the file, but stopped eventually, so the file
isn't completely decrypted.

I had the same problem with encrypted attachments I received from other
people who encrypted only against my public key. It's weird. However, I
also encrypted large files with success, so this is a sparse problem.

Does anyone have an idea what the problem could be? Is my smartcard
maybe borked?

Using gpg 1.4.7 on Windows, same problem occurs with gpg 1.4.6 on Linux.

Thanks,
Alex.
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