-------------------------- encrypt.py -------------------------------
#!/usr/bin/python
from Crypto.Cipher import AES
from Crypto import Random
import hashlib
# This is the password to be used
password = raw_input("Enter password: ")
# This create a 256 bit hash from the password.
key = hashlib.sha256(password).digest()
# Plain text to be encrypted
plaintext = raw_input("Enter Message: ")
# create a random iv.
iv = Random.new().read(AES.block_size)
# Create a aes object.
encobj = AES.new(key, AES.MODE_CFB, iv)
# String with iv and encrypted message
ciphertext = iv + encobj.encrypt(plaintext)
# Resulting ciphertext in hex
# Print hex because is cleaner in the terminal screen.
print ciphertext.encode('hex')
------------------------ decrypt.py ----------------------------------------
#!/usr/bin/python
from Crypto.Cipher import AES
from Crypto import Random
import hashlib
# Password to be used
password = raw_input("Enter password: ")
# Create a 256 bit hash from the password
key = hashlib.sha256(password).digest()
# Encoded message to be decrypted
cipher_msg = raw_input("Enter Cipher: ").decode('hex')
# Get iv from the first 16 charecter in the message
iv = cipher_msg[:16]
# Get the message to be decrypted
cipher = cipher_msg[16:]
# Create the AES object
encobj = AES.new(key, AES.MODE_CFB, iv)
# Decrypt the message
plaintext = encobj.decrypt(cipher)
print plaintext
