#!/usr/bin/python

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

"""

#
# 19/8/2003
#
# read key file and print security hash
#

import sys, pure

EOL = "\n"

if len(sys.argv) != 2 :
       print "usage: sechash keyfile"
else:
     try:
          FILE = open(sys.argv[1], "r")
          Content = FILE.readlines()
          FILE.close()
          FirstLine = pure.Line(Content[0])
          if  FirstLine[:37] == "-----BEGIN PURE-CRYPTO SIGNED MESSAGE":
               print "Keyfile is signed."
               Content = Content[1:]
          try:
               pure.Modulus = pure.toLong(Content[0])
               pure.Encryption = pure.toLong(Content[1])
               pure.HashModulus= pure.toLong(Content[2])
               pure.Generator = pure.toLong(Content[3])
               pure.UserID = pure.Line(Content[4])
          except:
               print EOL + "Keyfile is corrupt ! " + EOL
               sys.exit(3)

     except IOError :
          print "Keyfile is unavailable"
          sys.exit(1)

     # calculate length of moduli in bits
     pure.ModulusLength = pure.countbits(pure.Modulus)

     if pure.ModulusLength < pure.Minimal_key_length  :
          print "Warning: Key is too short! (", pure.toStrong(pure.ModulusLength), " Bits)"
          sys.exit(4)

     Message = pure.toString(pure.Modulus) + pure.toString(pure.Encryption) + pure.toString(pure.HashModulus) + pure.toString(pure.Generator) + pure.UserID
     TestHash1 = TestHash2 = 0L
     print pure.UserID
     print "Securityhash: "
     try:
          TestHash1 = pure.conservativehash(Message)
          print pure.toString(TestHash1)
     except:
          print "No conservative hash available."
     TestHash2 = pure.SDLH256(Message)
     print pure.toString(TestHash2)
sys.exit(0)

sig="""

-----BEGIN PGP SIGNATURE-----
Version: 2.6.3in
Charset: noconv

iQEVAwUBP0I5bb6wVDeIE49tAQFWNgf+N6wnGKQrScb0zJ0Y+RCmDP4YWXoocE5f
wTM86xh2mLorMaeqKzR4lDmBHB0XTm5w1zCIJYMfzkQoN5SUYRR1Jd9kPeBO9+nq
IsT4rDkZ5SgkWipVnU9CcOidTiajFVCJTzkbVhQ+YpP1iYXG6lgIO/KxZedw3VoX
x6ySOSkp1gXreJ5tislETLHhA2FenQXp4/HBkaYmXZK4Y6vkqilNkvaJw+8se07Q
AwUXr0aK4BEVyR5asZFdb8BFaZ1PK33ow07PAGm2I4zGvmM39JyKd76sOyugLmn4
nmqBL4GwiQ8t+hZ4kbDeocvVdM/OaKvYUAQg1CIloh4lEFinPXfSFg==
=i6/K
-----END PGP SIGNATURE-----
"""