https://github.com/netinvent/cryptidy

Easy but secure AES & RSA encryption / decryption
https://github.com/netinvent/cryptidy

aes asymmetric-cryptography decryption encryption end-to-end-encryption pycryptodome rsa-cryptography secure symmetric-key-cryptography

Last synced: about 2 months ago
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Easy but secure AES & RSA encryption / decryption

• Host: GitHub
• URL: https://github.com/netinvent/cryptidy
• Owner: netinvent
• License: bsd-3-clause
• Created: 2021-01-12T08:20:47.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2024-10-18T13:14:40.000Z (3 months ago)
• Last Synced: 2024-11-20T11:03:46.103Z (2 months ago)
• Topics: aes, asymmetric-cryptography, decryption, encryption, end-to-end-encryption, pycryptodome, rsa-cryptography, secure, symmetric-key-cryptography
• Language: Python
• Homepage:
• Size: 104 KB
• Stars: 1
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# cryptidy

## Python high level library for symmetric & asymmetric encryption

[![License](https://img.shields.io/badge/License-BSD%203--Clause-blue.svg)](https://opensource.org/licenses/BSD-3-Clause)

[![Percentage of issues still open](http://isitmaintained.com/badge/open/netinvent/cryptidy.svg)](http://isitmaintained.com/project/netinvent/Cryptidy "Percentage of issues still open")

[![Maintainability](https://api.codeclimate.com/v1/badges/be5d6edea1288951dc07/maintainability)](https://codeclimate.com/github/netinvent/cryptidy/maintainability)

[![codecov](https://codecov.io/gh/netinvent/cryptidy/branch/master/graph/badge.svg?token=E5D9oVnqj7)](https://codecov.io/gh/netinvent/cryptidy)

[![linux-tests](https://github.com/netinvent/cryptidy/actions/workflows/linux.yaml/badge.svg)](https://github.com/netinvent/cryptidy/actions/workflows/linux.yaml)

[![windows-tests](https://github.com/netinvent/cryptidy/actions/workflows/windows.yaml/badge.svg)](https://github.com/netinvent/cryptidy/actions/workflows/windows.yaml)

[![GitHub Release](https://img.shields.io/github/release/netinvent/cryptidy.svg?label=Latest)](https://github.com/netinvent/cryptidy/releases/latest)

This library has been written to make encryption / decryption of any python object as simple as possible, while keeping the encryption solution secure.

It is based on pycryptodomex AES and RSA encrpytion implementations.

It's main features are:

 - Encrypt any pickable Python object / variable / blob

 - Add an UTC timestamp to the encrypted message

 - Verify that decrypted messages timestamps aren't in the future or too old (for bad RTC clock diags)

 - Allow symmetric encryption (AES-EAX mode)

     - 128, 192 or 256 bits encryption

 - Allow asymmetric encryption (RSA encryption with SHA384 hash algorithm and above AES encryption)

     - 1024, 2048 or 4096 bits RSA encryption with AES-256 session encryption

 - Provide the encypted data as base64 string for maximum portability between platforms and encodings

 - Unload AES key from memory as soon as possible to help prevent memory attacks

# Setup

Current cryptidy tests are Python 3.7 and up.  

Nevertheless, cryptidy v1.2.3 still runs on Python 2.7+ ;)

`pip install cryptidy`

# Symmetric encryption usage

```

from cryptidy import symmetric_encryption

key = symmetric_encryption.generate_key(32)  # 32 bytes == 256 bits

some_python_objects = ['foo', 'bar'], 'some long string', 12

encrypted = symmetric_encryption.encrypt_message(some_python_objects, key)

timestamp, original_object = symmetric_encryption.decrypt_message(encrypted, key)

```

# Asymmetric encryption usage

```

from cryptidy import asymmetric_encryption

priv_key, pub_key = asymmetric_encryption.generate_keys(2048)  # 2048 bits RSA key

some_python_objects = ['foo', 'bar'], 'some long string', 12

encrypted = asymmetric_encryption.encrypt_message(some_python_objects, pub_key)

timestamp, original_object = asymmetric_encryption.decrypt_message(encrypted, priv_key)

```