# cryptidy
## Python high level library for symmetric & asymmetric encryption
[](https://opensource.org/licenses/BSD-3-Clause)
[](http://isitmaintained.com/project/netinvent/Cryptidy "Percentage of issues still open")
[](https://codeclimate.com/github/netinvent/cryptidy/maintainability)
[](https://codecov.io/gh/netinvent/cryptidy)
[](https://github.com/netinvent/cryptidy/actions/workflows/linux.yaml)
[](https://github.com/netinvent/cryptidy/actions/workflows/windows.yaml)
[](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)
```
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"description": "# cryptidy\r\n## Python high level library for symmetric & asymmetric encryption\r\n\r\n[](https://opensource.org/licenses/BSD-3-Clause)\r\n[](http://isitmaintained.com/project/netinvent/Cryptidy \"Percentage of issues still open\")\r\n[](https://codeclimate.com/github/netinvent/cryptidy/maintainability)\r\n[](https://codecov.io/gh/netinvent/cryptidy)\r\n[](https://github.com/netinvent/cryptidy/actions/workflows/linux.yaml)\r\n[](https://github.com/netinvent/cryptidy/actions/workflows/windows.yaml)\r\n[](https://github.com/netinvent/cryptidy/releases/latest)\r\n\r\nThis library has been written to make encryption / decryption of any python object as simple as possible, while keeping the encryption solution secure.\r\nIt is based on pycryptodomex AES and RSA encrpytion implementations.\r\n\r\nIt's main features are:\r\n - Encrypt any pickable Python object / variable / blob\r\n - Add an UTC timestamp to the encrypted message\r\n - Verify that decrypted messages timestamps aren't in the future or too old (for bad RTC clock diags)\r\n - Allow symmetric encryption (AES-EAX mode)\r\n - 128, 192 or 256 bits encryption\r\n - Allow asymmetric encryption (RSA encryption with SHA384 hash algorithm and above AES encryption)\r\n - 1024, 2048 or 4096 bits RSA encryption with AES-256 session encryption\r\n - Provide the encypted data as base64 string for maximum portability between platforms and encodings\r\n - Unload AES key from memory as soon as possible to help prevent memory attacks\r\n\r\n# Setup\r\n\r\nCurrent cryptidy tests are Python 3.7 and up. \r\nNevertheless, cryptidy v1.2.3 still runs on Python 2.7+ ;)\r\n\r\n\r\n`pip install cryptidy`\r\n\r\n\r\n# Symmetric encryption usage\r\n\r\n```\r\nfrom cryptidy import symmetric_encryption\r\n\r\nkey = symmetric_encryption.generate_key(32) # 32 bytes == 256 bits\r\n\r\nsome_python_objects = ['foo', 'bar'], 'some long string', 12\r\nencrypted = symmetric_encryption.encrypt_message(some_python_objects, key)\r\ntimestamp, original_object = symmetric_encryption.decrypt_message(encrypted, key)\r\n```\r\n\r\n# Asymmetric encryption usage\r\n\r\n```\r\nfrom cryptidy import asymmetric_encryption\r\n\r\npriv_key, pub_key = asymmetric_encryption.generate_keys(2048) # 2048 bits RSA key\r\n\r\nsome_python_objects = ['foo', 'bar'], 'some long string', 12\r\nencrypted = asymmetric_encryption.encrypt_message(some_python_objects, pub_key)\r\ntimestamp, original_object = asymmetric_encryption.decrypt_message(encrypted, priv_key)\r\n```\r\n",
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