#!/usr/bin/python

sig="""
-----BEGIN PGP SIGNED MESSAGE-----

#
# checks all trusted public keys
#
# 2003/8/22
#
"""

import sys, os, pure


# read secretkey

if len(sys.argv) != 1:
     print "usage: check-keys"
     sys.exit(3)

pure.read_cryptosystem("signingkey")
pure.print_banner()
pure.print_security_notice()

EOL = "\n"
Ring = {}
collision = 0

if pure.Mode == "PURE" :
     KeyHome = pure.Home + "trusted-keys"
else :
     KeyHome = pure.Home + "trusted-sha"
try:
     KeyFiles = os.listdir(KeyHome)
except:
     print EOL + "No trusted keys available." + EOL
     sys.exit(2)

print "Looking for key files in ", KeyHome
for File in KeyFiles :
     try :
          if File[-4:] == ".sig":
              FILE = open (KeyHome + "/" + File, "r")
              PubKey = FILE.readlines()
              FILE.close()
              print pure.Line(PubKey[5]),
              if pure.key_valid(PubKey) :
                    Modulus = pure.toLong(PubKey[1])
                    Encryption = pure.toLong(PubKey[2])
                    HashModulus = pure.toLong(PubKey[3])
                    Generator = pure.toLong(PubKey[4])
                    UserID = pure.Line(PubKey[5])

                    Key = [Modulus, Encryption, HashModulus, Generator, UserID ]
                    Ring [File] = Key
     except IOError :
          print "Cannot open " + File

# Ring is filled with valid keys

for key1 in Ring.keys() :

     for key2 in Ring.keys() :

          if (key1 != key2) and (Ring[key1][0] == Ring[key2][0]) :
               collision = 1
               print "Collision: Common Modulus detected in files ", key1, " and " ,key2

if collision == 0 :
    print "NO COLLISIONS DETECTED."

################################################################
# Copyright (c) 2003 Ralf Senderek                             #
################################################################

sys.exit(0)

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"""