Python (6)-Hashlib module

Cryptographic algorithms: sha1,sha224, SHA256, SHA384, SHA512, MD5

1. MD5

Import= hashlib.md5 () m.update (b"Hello")     # Encryption M.update (b"It's Me")   # re-encrypt a print( M.digest ())    #  binary print(M.hexdigest ())   #16 binary

2.sha1

# SHA1m = hashlib.sha1 () m.update (b"Hello")     # Encryption M.update (b"It's Me")   # re-encrypt a print(M.digest ( )    #  binary print(M.hexdigest ())   #16 binary

3. SHA512

# SHA512m = hashlib.sha512 () m.update (b"Hello")     # Encryption M.update (b"It's Me")   # re-encrypt a print( M.digest ())    #  binary print(M.hexdigest ())   #16 binary # Other encryption methods are similar

4. If you think the above method is not enough dick, then there is an HMAC module

Import= hmac.new (b'secret_key')    # generates keyH.update (b ' Hello ')    # Encrypt Print (H.hexdigest ())

The following is an HMAC module use case

#The following is a simple c/s program, using the HMAC signature#Client (signs the data)ImportXmlrpclib,hmac,hashlibkey="MySecret"Server= Xmlrpclib. Serverproxy ("http://localhost:8888") name="Homer"Signature=hmac.new (key,name). Hexdigest ()PrintServer.sayhello (signature,name)#Server (verifies the signature)ImportSimplexmlrpcserver,hmac,hashlibkey="MySecret"classMyClass:defSayHello (self, Signature, name):ifHmac.new (Key,name). Hexdigest ()! =Signature:return "wrong signature! You ' re a hacker!"        Else:            returnU"Hello,%s!"%Nameserver_object=MyClass () server= Simplexmlrpcserver.simplexmlrpcserver (("localhost", 8888))#(2)Server.register_instance (Server_object)#(3)Print "Listening on port 8888"Server.serve_forever ()#The code snippet is from: http://www.sharejs.com/codes/python/1880

Python (6)-Hashlib module