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_ÿÙimport Crypto.Hash.SHA256 import Crypto.Hash.SHA384 import Crypto.Hash.SHA512 from Crypto.PublicKey import RSA from Crypto.Signature import PKCS1_v1_5 from jwt.algorithms import Algorithm from jwt.compat import string_types, text_type class RSAAlgorithm(Algorithm): """ Performs signing and verification operations using RSASSA-PKCS-v1_5 and the specified hash function. This class requires PyCrypto package to be installed. This is based off of the implementation in PyJWT 0.3.2 """ SHA256 = Crypto.Hash.SHA256 SHA384 = Crypto.Hash.SHA384 SHA512 = Crypto.Hash.SHA512 def __init__(self, hash_alg): self.hash_alg = hash_alg def prepare_key(self, key): if isinstance(key, RSA._RSAobj): return key if isinstance(key, string_types): if isinstance(key, text_type): key = key.encode('utf-8') key = RSA.importKey(key) else: raise TypeError('Expecting a PEM- or RSA-formatted key.') return key def sign(self, msg, key): return PKCS1_v1_5.new(key).sign(self.hash_alg.new(msg)) def verify(self, msg, key, sig): return PKCS1_v1_5.new(key).verify(self.hash_alg.new(msg), sig)