Matthias Güntert wrote:
M2Crypto has a couple of bugs open related that, with potential
workarounds that I haven't yet deemed polished enough to checkin, but
which might help you out:

https://bugzilla.osafoundation.org/show_bug.cgi?id=7530
https://bugzilla.osafoundation.org/show_bug.cgi?id=12151

... Generating the 'subjectKeyIdentifier':
> ...
def get_public_key_fingerprint(self):
        h = hashlib.new('sha1')
        h.update(self.keypair.as_der())
        client_serial = h.hexdigest().upper()
        client_serial_hex = ''
        for byte in xrange(20):
         client_serial_hex += client_serial[byte*2] + client_serial[byte*2
+1]
                if byte < 19:
                        client_serial_hex += ':'
return client_serial_hex ...

More tersely (code golf?):

    def get_public_key_fingerprint(self):
        digest = hashlib.sha1(self.keypair.as_der()).hexdigest().upper()
        return ':'.join(digest[pos : pos+2] for pos in range(0, 40, 2))

--Scott David Daniels
scott.dani...@acm.org


--Scott David Daniels
scott.dani...@acm.org
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