[Cryptography-dev] Parsing DER from PE File

[Paul Kehrer]

Could you give us an example (in hex or b64 or something) so we can easily
reproduce? Make sure any certs you're giving us don't contain sensitive
data of course.

-Paul


On December 19, 2018 at 11:55:04 PM, Robert Simmons (rsimmons0 at gmail.com)
wrote:

I've asked this question on Stack Overflow here:
https://stackoverflow.com/q/53862702/1033217

I have compared my code to Dider Stevens's disitool here (examine the
function ExtractDigitalSignature):
https://github.com/DidierStevens/DidierStevensSuite/blob/master/disitool.py

When I load that extracted file into a variable and try to parse it with
cryptography, it fails. If I pipe the same file to openssl on the command
line, it works.

I am thinking this has to do with the number of certificates in the
directory in the PE file. There can be three (cert, intermediate CA, and
CA, etc).

Any idea what's going on?
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