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Encryption/decryption library

Project description

pypi pyversion

Encryption and decryption tools. Cipher mix AES encryption with base64 encode generating plain text encrypted files.


  • variables:
>>> import cipher
>>> cipher.encrypt("encryption_password", "something to encrypt!")
>>> import cipher
>>> encrypted = cipher.encrypt("encryption_password", "something to encrypt!")
>>> cipher.decrypt("encryption_password", encrypted)
'something to encrypt!'
  • files:
>>> import cipher
>>> txt = "file content to encrypt!"
>>> cipher.write("/tmp/file.encrypted", "encryption_password", txt)
>>> import cipher
>>>"/tmp/file.encrypted", "encryption_password")
'file content to encrypt!'
  • A Credentials class can be used to handle secrets stored in JSON formats:
>>> import json
>>> secrets = {
...     "db_dsn": "mysql://user:pass@host:port/dbname",
...     "api_token": "some token"
... }
>>> cipher.write("/tmp/secrets", "encryption_password", json.dumps(secrets))
>>> # so, in your app you can do something like this:
>>> import cipher
>>> cred = cipher.Credentials("/tmp/secrets", "encryption_password")
>>> cred.db_dsn
>>> cred.api_token
'some token'

Generating keys

There are a lot of ways to create keys but a good easy to use way to create non-easy to remember keys is using /dev/urandom, almost on Unix systems. For example:

dd if=/dev/urandom bs=16 count=1 | base64 > /path/to/key_file

The count parameter is the number of blocks to read and write, while the bs parameter is the size of each block.


There is also available a nice command line. Just install cipher and start using it! $ ciphercmd -v will let you know it is ready to be used.



$ pip install humu1us-cipher

Development version:

$ git clone
$ cd cipher
$ pip install -e .


Contributions are welcome! Feel free to report bugs or open an issue if you feel a new feature is needed. Pull requests are welcome!

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