Reorder

[securemail.git] / cryptonize.py

diff --git a/cryptonize.py b/cryptonize.py
deleted file mode 100644 (file)
index 7a598d3..0000000
--- a/cryptonize.py
+++ /dev/null
@@ -1,111 +0,0 @@
-# -*- coding: utf-8 -*-
- 
-# Copyright (c) 2018  Michael Rasmussen <mir@datanom.net>
- 
-# This file is part of SecureMail.
-
-# SecureMail is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# SecureMail is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with SecureMail.  If not, see <https://www.gnu.org/licenses/>.
-
-from nacl import __version__ as NACL_VERSION
-from nacl.secret import SecretBox
-from nacl.public import PrivateKey, Box
-from nacl.utils import random, EncryptedMessage
-from nacl.encoding import HexEncoder
-import nacl.hash
-
-class Cryptonize:
-    """
-    Encrypt and decrypt objects
-    """
-    
-    def symmetric_encrypt(self, key, plain):
-        skey = self.sanitize_key(key)
-        box = SecretBox(skey)
-        if NACL_VERSION < "1.1.0":
-            nonce = random(SecretBox.NONCE_SIZE)
-            cipher = box.encrypt(plain, nonce)
-        else:
-            cipher = box.encrypt(plain)
-        box = skey = None
-        
-        return cipher
-        
-    def symmetric_decrypt(self, key, cipher):
-        skey = self.sanitize_key(key)
-        box = SecretBox(skey)
-        plain = box.decrypt(cipher)
-        box = skey = None
-        
-        return plain
-        
-    def asymmetric_encrypt(self, privkey, pubkey, plain):
-        if not isinstance(plain, bytes):
-            plain = plain.encode('utf-8')
-        box = Box(privkey, pubkey)
-        if NACL_VERSION < "1.1.0":
-            nonce = random(Box.NONCE_SIZE)
-            cipher = box.encrypt(plain, nonce)
-        else:
-            cipher = box.encrypt(plain)
-        box = None
-        
-        return cipher
-        
-    def asymmetric_decrypt(self, privkey, pubkey, cipher):
-        if not isinstance(cipher, bytes):
-            cipher = cipher.encode('utf-8')
-        box = Box(privkey, pubkey)
-        plain = box.decrypt(cipher)
-        box = None
-        
-        return plain
-        
-    def get_random_key(self):
-        return random(SecretBox.KEY_SIZE)
-        
-    def sanitize_key(self, key):
-        if not isinstance(key, bytes):
-            key = key.encode('utf-8')
-        size = len(key)
-        if size < SecretBox.KEY_SIZE:
-            """ We must pad """
-            newkey = key + bytes(SecretBox.KEY_SIZE - size)
-        elif size > SecretBox.KEY_SIZE:
-            newkey = key[:SecretBox.KEY_SIZE]
-        else:
-            newkey = key
-        
-                
-        return newkey
-        
-    def get_key_pair(self):
-        privkey = PrivateKey.generate()
-        pubkey = privkey.public_key
-        
-        return (privkey, pubkey)
-
-    def generate_hash(self, key):
-        if not isinstance(key, bytes):
-            key = key.encode('utf-8')
-        HASHER = nacl.hash.sha512
-        digest = HASHER(key, encoder=HexEncoder)
-
-        return digest.decode()
-
-    def create_EncryptedMessage(self, payload):
-        nonce = payload[:SecretBox.NONCE_SIZE]
-        ciphertext = payload[SecretBox.NONCE_SIZE:]
-        
-        return EncryptedMessage._from_parts(
-            nonce, ciphertext,  nonce + ciphertext)