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=====================
Sealed Box
=====================
Sealed box is a variant of :doc:`public key encryption scheme </topics/public>`
which only the receiver's public key is required. As such, the sender of the
message cannot be cryptographically authenticated.
.. code-block:: python
import libnacl.sealed
import libnacl.public
# Define a message to send
msg = b'You\'ve got two empty halves of coconut and you\'re bangin\' \'em together.'
# Generate the key pair
keypair = libnacl.public.SecretKey()
# Create the box
box = libnacl.sealed.SealedBox(keypair)
# Encrypt messages
ctxt = box.encrypt(msg)
# Decrypt messages
bclear = box.decrypt(ctxt)
Creating Box
======================
SealedBox instances can be created by supplying a public and private key. The
private key is only required when decrypting.
The public key can be supplied as:
* Instance of :ref:`SecretKey <secretkey-object>`, which supply both the public
and private key.
* Instance of :ref:`PublicKey <publickey-object>`
* Raw binary representation
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