https://github.com/piaca/micropython-aes

https://github.com/piaca/micropython-aes

Last synced: about 2 months ago
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• Host: GitHub
• URL: https://github.com/piaca/micropython-aes
• Owner: piaca
• License: mit
• Created: 2017-07-06T08:25:32.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-07-06T08:26:19.000Z (over 7 years ago)
• Last Synced: 2024-04-22T12:33:05.502Z (9 months ago)
• Language: Python
• Size: 5.86 KB
• Stars: 17
• Watchers: 3
• Forks: 5
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-micropython - micropython-aes - AES algorithm with pure python implementation. (Libraries / Communications)

README

        
# micropython-aes

AES algorithm with pure python implementation. Small modify based on https://github.com/ipfans/pyAES for MicroPython.

# How to use?

### In REPL

```

>>> import maes

>>> import ubinascii

>>> 

>>> def array_tostring(array_data):

...     _string = ""

...     for _array in array_data:

...         _string = _string + chr(_array)

...     return _string

...     

>>> 

>>> key = b"1234567890abcdef"

>>> iv = b"1234567890abcdef"

>>> 

>>> cryptor = maes.new(key, maes.MODE_CBC, IV=iv)

>>> ciphertext = cryptor.encrypt(b'This is a test! What could possibly go wrong?___')

>>> print(ubinascii.b2a_base64(array_tostring(ciphertext)))

b'wo3DsMKeDTd0DXcUw4wlwq0zwrMmL8O6SxdyNsOFIcKmXk/Dty0PInYswrzCssOGwpkWATlzw54Bw6XChXXDm2ca\n'

>>> 

>>> decryptor = maes.new(key, maes.MODE_CBC, IV=iv)

>>> print(array_tostring(decryptor.decrypt(ciphertext)))

This is a test! What could possibly go wrong?___

>>> 

```

### In nodemcu with micropython

1. Fetch source code `https://github.com/micropython/micropython`

2. put `maes.py` to directory `$MICROPYTHON_DIR/esp8266/modules`

3. build firmware and flash into nodemcu

### Why?

Cause MicroPython don't support AES algorithm.