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authorDevendra2014-03-25 11:47:03 +0530
committerDevendra2014-03-25 11:47:03 +0530
commit9ac3ccf6283772b404a0c80945e3cdf3406ac5bf (patch)
tree11ff9dc1a4e585617a522bc9cb56172dfa4adda9 /common/PubnubCrypto.py
parentb8d1dd86a0d8c4261d4f3765f3ca227d7b555c84 (diff)
downloadpubnub-python-9ac3ccf6283772b404a0c80945e3cdf3406ac5bf.tar.bz2
making version 2 and version 3 work same timepython3
Diffstat (limited to 'common/PubnubCrypto.py')
-rw-r--r--common/PubnubCrypto.py79
1 files changed, 78 insertions, 1 deletions
diff --git a/common/PubnubCrypto.py b/common/PubnubCrypto.py
index 1f5fc8d..3489216 100644
--- a/common/PubnubCrypto.py
+++ b/common/PubnubCrypto.py
@@ -4,7 +4,84 @@ from base64 import encodestring, decodestring
import hashlib
import hmac
-class PubnubCrypto() :
+class PubnubCrypto2() :
+ """
+ #**
+ #* PubnubCrypto
+ #*
+ #**
+
+ ## Initiate Class
+ pc = PubnubCrypto
+
+ """
+
+ def pad( self, msg, block_size=16 ):
+ """
+ #**
+ #* pad
+ #*
+ #* pad the text to be encrypted
+ #* appends a padding character to the end of the String
+ #* until the string has block_size length
+ #* @return msg with padding.
+ #**
+ """
+ padding = block_size - (len(msg) % block_size)
+ return msg + chr(padding)*padding
+
+ def depad( self, msg ):
+ """
+ #**
+ #* depad
+ #*
+ #* depad the decryptet message"
+ #* @return msg without padding.
+ #**
+ """
+ return msg[0:-ord(msg[-1])]
+
+ def getSecret( self, key ):
+ """
+ #**
+ #* getSecret
+ #*
+ #* hases the key to MD5
+ #* @return key in MD5 format
+ #**
+ """
+ return hashlib.sha256(key).hexdigest()
+
+ def encrypt( self, key, msg ):
+ """
+ #**
+ #* encrypt
+ #*
+ #* encrypts the message
+ #* @return message in encrypted format
+ #**
+ """
+ secret = self.getSecret(key)
+ Initial16bytes='0123456789012345'
+ cipher = AES.new(secret[0:32],AES.MODE_CBC,Initial16bytes)
+ enc = encodestring(cipher.encrypt(self.pad(msg)))
+ return enc
+ def decrypt( self, key, msg ):
+ """
+ #**
+ #* decrypt
+ #*
+ #* decrypts the message
+ #* @return message in decryped format
+ #**
+ """
+ secret = self.getSecret(key)
+ Initial16bytes='0123456789012345'
+ cipher = AES.new(secret[0:32],AES.MODE_CBC,Initial16bytes)
+ return self.depad((cipher.decrypt(decodestring(msg))))
+
+
+class PubnubCrypto3() :
"""
#**
#* PubnubCrypto