mpi too large for this implementation (20744 bits)

Sascha Kiefer sk at
Mon May 18 12:19:39 CEST 2009

You may try


gpg --print-md sha1 testfile.dat.pgp


to ensure that the file is not corrupted during transport.





From: gnupg-users-bounces at [mailto:gnupg-users-bounces at]
On Behalf Of Farha Patnaikk
Sent: Montag, 18. Mai 2009 05:06
To: gnupg-users at
Subject: gpg: mpi too large for this implementation (20744 bits) 



I am exchanging files with another party , i use Version  : 7.1.1 of pgp . 
The party with whome i am exchanging files uses  gpg. 

I am able to decrypt their encrypted file successfully but they are not able
to decrypt my encrypted file. They get the 
following error message 

C:\Temp>gpg --homedir "C:\temp" --output 01.txt --decrypt testfile.dat.pgp
gpg: mpi too large for this implementation (20744 bits) 
C:\Temp>gpg --homedir "C:\temp" --output 01.txt --openpgp --decrypt
gpg: mpi too large for this implementation (20744 bits) 

what could be the reason for this ??? I am not able to find any help on the

Please try to help me . 


Farha Patnaikk | Consultant | Corporate Core Projects & Technology | Westpac
Banking Corporation
Level 17, 275 Kent Street, Sydney NSW 2000 Australia
Phone +61 8254 (2)7547 | fpatnaikk at 
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