ÿØÿàJFIFÿþ ÿÛC       ÿÛC ÿÀÿÄÿÄ"#QrÿÄÿÄ&1!A"2qQaáÿÚ ?Øy,æ/3JæݹÈ߲؋5êXw²±ÉyˆR”¾I0ó2—PI¾IÌÚiMö¯–þrìN&"KgX:Šíµ•nTJnLK„…@!‰-ý ùúmë;ºgµŒ&ó±hw’¯Õ@”Ü— 9ñ-ë.²1<yà‚¹ïQÐU„ہ?.’¦èûbß±©Ö«Âw*VŒ) `$‰bØԟ’ëXÖ-ËTÜíGÚ3ð«g Ÿ§¯—Jx„–’U/ÂÅv_s(Hÿ@TñJÑãõçn­‚!ÈgfbÓc­:él[ðQe 9ÀPLbÃãCµm[5¿ç'ªjglå‡Ûí_§Úõl-;"PkÞÞÁQâ¼_Ñ^¢SŸx?"¸¦ùY騐ÒOÈ q’`~~ÚtËU¹CڒêV  I1Áß_ÿÙclass Security: def __init__(self): import os env = os.environ if env.has_key('PYTHON_KEYFILE'): keyfile = env['PYTHON_KEYFILE'] else: keyfile = '.python_keyfile' if env.has_key('HOME'): keyfile = os.path.join(env['HOME'], keyfile) if not os.path.exists(keyfile): import sys for dir in sys.path: kf = os.path.join(dir, keyfile) if os.path.exists(kf): keyfile = kf break try: self._key = eval(open(keyfile).readline()) except IOError: raise IOError, "python keyfile %s: cannot open" % keyfile def _generate_challenge(self): import random return random.randint(100, 100000) def _compare_challenge_response(self, challenge, response): return self._encode_challenge(challenge) == response def _encode_challenge(self, challenge): p, m = self._key return pow(long(challenge), p, m)