diff options
Diffstat (limited to 'PubnubCrypto.py')
| -rw-r--r-- | PubnubCrypto.py | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/PubnubCrypto.py b/PubnubCrypto.py deleted file mode 100644 index b7a57a1..0000000 --- a/PubnubCrypto.py +++ /dev/null @@ -1,93 +0,0 @@ -## www.pubnub.com - PubNub Real-time push service in the cloud. -# coding=utf8 - -## PubNub Real-time Push APIs and Notifications Framework -## Copyright (c) 2010 Stephen Blum -## http://www.pubnub.com/ - -## ----------------------------------- -## PubNub 3.1 Real-time Push Cloud API -## ----------------------------------- - -from Crypto.Cipher import AES -from Crypto.Hash import MD5 -from base64 import encodestring, decodestring -import hashlib -import hmac - -class PubnubCrypto() : - """ - #** - #* 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)))) - |
