[ pycrypto-Bugs-1212602 ] Wrong RSA encryption

Bugs item #1212602, was opened at 2005-06-01 05:59
Message generated for change (Comment added) made by akuchling
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Nobody/Anonymous (nobody)
Assigned to: Nobody/Anonymous (nobody)
Summary: Wrong RSA encryption

Initial Comment:
A big file is split up in chunks smaller than
((size()+1)/8 - 11).
The modules contains 64 bytes so a chunk is 53 bytes.
In front I add 0x00 0x02 PS 0x00 (the PKCS1 standard?).
PS is pseudo non zero random padding of at least 8 bytes.
Sometimes (seems irregular) encrypt() returns 63 bytes.
64 bytes are expected. 
Then I call encrypt() again for the same data. 
This second time the correct 64 bytes are returned.

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>Comment By: A.M. Kuchling (akuchling)
Date: 2005-06-10 15:38

Message:
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user_id=11375

Please provide a small test script that demonstrates the
problem.

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