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Feb 28, 2018
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GPGME Python bindings #886

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46 changes: 46 additions & 0 deletions docs/scenarios/crypto.rst
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Expand Up @@ -40,6 +40,52 @@ Example code using high level symmetric encryption recipe:



GPGME bindings
--------------

The `GPGME Python bindings <https://dev.gnupg.org/source/gpgme/browse/master/lang/python/>`_ provide pythonic access to `GPG Made Easy <https://dev.gnupg.org/source/gpgme/browse/master/>`_, a C API for the entire GNU Privacy Guard suite of projects, including GPG, libgcrypt and gpgsm (the S/MIME engine). It supports Python 2.6, 2.7, 3.4 and above. Depends on the SWIG C interface for Python as well as the GnuPG software and libraries.

Available under the same terms as the rest of the GnuPG Project: GPLv2 and LGPLv2.1, both with the "or any later version" clause.

Installation
------------

Included by default when compiling GPGME if the configure script locates a supported python version (which it will if it's in $PATH during configuration).

Example
-------

.. code-block:: python3

import gpg
import os

# Encryption to public key specified in rkey.
rkey = "0xDEADBEEF"
text = "Something to hide."
plain = gpg.core.Data(text)
cipher = gpg.core.Data()
c = gpg.core.Context()
c.set_armor(1)
c.op_keylist_start(rkey, 0)
r = c.op_keylist_next()
c.op_encrypt([r], 1, plain, cipher)
cipher.seek(0, os.SEEK_SET)
ciphertext = cipher.read()

# Decryption with corresponding secret key
# invokes gpg-agent and pinentry.
plaintext = gpg.Context().decrypt(ciphertext)

# Matching the data.
if text == plaintext[0].decode("utf-8"):
print("Hang on ... did you say *all* of GnuPG? Yep.")
else:
pass




PyCrypto
--------

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