Basic functions/libraries for ESP32/ESP8266 and WiPy2.0/3.0 running MicroPython.
More info: lemariva.com
Small FTP server
- Passive mode only
- A single data connection at a time
- Data transfer is assumed to be in binary mode (ascii setting is ignored)
- Operation blocks the thread
- No authentication support
- Changing directories (cd/CWD)
- Directory listing (ls/LIST with no parameters)
- File retrievals (get/RETR)
- File uploads (put/STOR)
Get the epoch time from time1.google.com
Implements machine.RTC() with ntp_sync(), gmtime() and formatdate() -RFC 2822 date format- as functions
Encode a string using an MD5 algorithm.
>>> import md5
>>> md5.digest('foo')
'acbd18db4cc2f85cedef654fccc4a4d8
Encode a string using an MD5 algorithm.
>>> from md5hash import md5
>>> m = md5()
>>> m.update('foo')
>>> m.hexdigest()
'acbd18db4cc2f85cedef654fccc4a4d8'
Simple AES cipher implementation in pure Python following PEP-272 API
import maes
import ubinascii
class AESCipher():
def __init__(self, key):
self.bs = 16
self.key = key
def encrypt(self, raw):
raw = self._pad(raw)
cipher = maes.new(self.key, maes.MODE_ECB)
crypted_text = cipher.encrypt(raw)
crypted_text_b64 = ubinascii.b2a_base64(crypted_text)
return crypted_text_b64
def decrypt(self, enc):
enc = ubinascii.a2b_base64(enc)
cipher = maes.new(self.key, maes.MODE_ECB)
raw = cipher.decrypt(enc)
return self._unpad(raw).decode('utf-8')
def _pad(self, s):
padnum = self.bs - len(s) % self.bs
return s + padnum * chr(padnum).encode()
@staticmethod
def _unpad(dec):
s = bytes(bytearray(dec))
return s[:-ord(s[len(s)-1:])]
>>> key = b'0cc103aaf3df5dff'
>>> cypher = AESCipher(key)
>>> enc = cypher.encrypt(b'foo')
>>> print(enc)
b'S8IpdJ+PpVYutZB5sWXGkA==\n'
>>> cypher.decrypt(enc)
'foo'
Revision 0.3
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