Decryption error (block_filter read error)

Devaraj Karuppiah dkaruppiah at
Mon Jul 7 16:11:42 CEST 2008

How do I compute sha1sum in GPG? I can't seem to find an option that
computes sha1sum in the GPG manual.


-----Original Message-----
From: Werner Koch [mailto:wk at] 
Sent: Friday, July 04, 2008 6:48 AM
To: dkaruppiah at
Cc: gnupg-users at
Subject: Re: Decryption error (block_filter read error)

On Thu,  3 Jul 2008 16:44, dkaruppiah at said:

> gpg: CAST5 encrypted data
> gpg: block_filter 00AF8A00: read error (size=4245,a->size=1002)

That looks pretty much like currupted data. 

Check that you received the message intact, for example by asking the sender
to provide a sha1sum and compare that to the sha1sum you got.



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