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        "author": "Paul Sherratt",
        "author_email": "paul@paul.sh",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 3 - Alpha",
            "Intended Audience :: System Administrators",
            "Intended Audience :: Telecommunications Industry",
            "License :: OSI Approved :: Apache Software License",
            "Programming Language :: Python :: 2.7",
            "Programming Language :: Python :: 2 :: Only",
            "Topic :: Security :: Cryptography",
            "Topic :: System :: Systems Administration"
        ],
        "description": "sagecipher\n==========\n\n| |PyPI|\n| |Codecov|\n| |Build Status|\n\n**sagecipher** (**s**\\ sh **age**\\ nt **crypt**) is a very small module\nwhich provides a cipher keyed through ``ssh-agent``. The key is obtained\nby generating random challenge data, passing this to ``ssh-agent`` to\nobtain a signature via the users private ssh-key for use as key\nmaterial, and finally passing this through PBKDF2.\n\nContents\n--------\n\n-  `Installation <#installation>`__\n-  `Usage <#usage>`__\n-  `Using sagecipher in a Python program <#using-in-python>`__\n-  `Using the cli tool to provide on-demand decryption <#cli>`__\n\nInstallation\n------------\n\n::\n\n    pip install sagecipher\n\nUsage \n------\n\nBefore using, ``ssh-agent`` must be running with at least one ssh-key\navailable for producing cipher key material:\n\n.. code:: sh\n\n    $ source <(ssh-agent)\n    Agent pid 3710\n\n    $ ssh-add\n    Enter passphrase for /home/somebody/.ssh/id_rsa:\n    Identity added: /home/somebody/.ssh/id_rsa (/home/somebody/.ssh/id_rsa)\n\n| If ``ssh-agent`` is not available or does not have any keys available,\n  expect to see a\n| ``sagecipher.cipher.SignError`` Exception:\n\n.. code:: python\n\n    >>> from sagecipher import *\n    >>> cfail = Cipher()\n    Traceback (most recent call last):\n      File \"<stdin>\", line 1, in <module>\n      File \"sagecipher/cipher.py\", line 101, in __init__\n        signature = sign_via_agent(self.challenge, self.fingerprint)\n      File \"sagecipher/cipher.py\", line 230, in sign_via_agent\n        raise SignError(SignError.E_NO_KEYS)\n    sagecipher.cipher.SignError: SSH agent is not running or no keys are available\n\nUsing the cli tool to provide on-demand decryption to other tools \n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\nCheck ``sagecipher --help`` for usage...\n\n::\n\n    $ sagecipher encrypt - encfile\n    secret sauce\n    (CTRL-D)\n    $ sagecipher decrypt encfile -\n    secret sauce\n    $ mkfifo decfile\n    $ sagecipher decrypt encfile decfile &\n    [1] 16753\n    $ cat decfile\n    secret sauce\n    $\n\nUsing sagecipher in a Python program \n~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n\n.. code:: python\n\n    >>> from sagecipher import *\n    >>>\n    >>> # Create a new cipher using first key available from ssh-agent\n    >>> c1 = Cipher()\n    >>> \n    >>> # Use the cipher header to create a second/future instance\n    >>> c2 = Cipher(c1.header())\n    >>>    \n    >>> # Display fingerprint of the SSH key used for derivation of cipher key\n    >>> to_hex(c2.fingerprint)\n    '11:66:89:44:a3:ec:9b:1c:55:cd:f7:54:20:3b:09:c3'\n    >>>\n    >>> # Encrypt with the first instance, decrypt back with the second...\n    >>> unpad(c2.decrypt_string(c1.encrypt(pad(\"Hello, cryptic world!\"))))\n    'Hello, cryptic world!'\n    >>>\n    >>> # Encrypt and decrypt using helper methods.  The cipher header is\n    >>> # stored in the encrypted ciphertext.\n    >>> ciphertext = encrypt_string(\"Alice, I think someone is listening!\")\n    >>> plaintext = decrypt_string(ciphertext)\n    >>> plaintext\n    'Alice, I think someone is listening!'\n\n.. |PyPI| image:: https://img.shields.io/pypi/v/sagecipher.svg\n   :target: https://pypi.python.org/pypi/sagecipher\n.. |Codecov| image:: https://img.shields.io/codecov/c/github/p-sherratt/sagecipher/master.svg\n   :target: https://codecov.io/gh/p-sherratt/sagecipher\n.. |Build Status| image:: https://travis-ci.org/p-sherratt/sagecipher.svg?branch=master\n   :target: https://travis-ci.org/p-sherratt/sagecipher",
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