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test: 1 < d < (p -1)

This commit is contained in:
Brendan Taylor 2007-07-29 21:02:15 +00:00
parent 8adbac7997
commit 5935869136
1 changed files with 3 additions and 1 deletions
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4
src/common/stanza_session.py
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@ -512,7 +512,6 @@ class EncryptedStanzaSession(StanzaSession):
self.negotiated = negotiated
# 2. Return a <not-acceptable/> error to Bob unless: 1 < d < p - 1
self.form_b = ''.join(map(lambda el: xmpp.c14n.c14n(el), form.getChildren()))
accept = xmpp.Message()
@ -532,6 +531,9 @@ class EncryptedStanzaSession(StanzaSession):
e = self.es[mod_p]
self.d = self.decode_mpi(base64.b64decode(form['dhkeys']))
if (not 1 < self.d < (p - 1)):
raise exceptions.NegotiationError, "invalid DH value 'd'"
self.k = self.sha256(self.encode_mpi(self.powmod(self.d, x, p)))