def decrypt_text(text, secret_key, sender_public_key):
"""Decrypts a text
"""
secret_key = PrivateKey(secret_key.decode('hex'))
sender_public_key = PublicKey(sender_public_key.decode('hex'))
box = Box(secret_key, sender_public_key)
return box.decrypt(text)
def encrypt_text(text, secret_key, rcpt_public_key):
"""Encrypts a text
"""
secret_key = PrivateKey(secret_key.decode('hex'))
rcpt_public_key = PublicKey(rcpt_public_key.decode('hex'))
box = Box(secret_key, rcpt_public_key)
return box.encrypt(text, nacl.utils.random(Box.NONCE_SIZE))