crypto/crittografia/numeri.py

import math,random,itertools,pyaudio

class primi:
	
	def primo(n):
	    for i in range(3, int(math.sqrt(n)) + 1,2):
	        if n % i == 0: return False
	    return True
	
	def prossimo(n):
		if n % 2 == 0: n += 1
		while True:
			n += 2
			if primi.primo(n): yield n
	
	def lista(p, n):
		return tuple([p for p in itertools.islice(primi.prossimo(p), n)])

class generatore:
	
	def rumore(l):
		audio = pyaudio.PyAudio()
		output = audio.open(format = pyaudio.paInt8, channels = 1, output=True, rate = 50000)
		for i in range(int(l*100/3)): 
			output.write(chr(int(random.random() * 25 + 1)))
		output.close()
		audio.terminate()
	
	def leggirumore(inizio, fine, stop):
		audio = pyaudio.PyAudio()
		input = audio.open(format = pyaudio.paInt16, channels = 2, rate = 44100, input = True, frames_per_buffer = 1024)
		dati = input.read(int(44100 / 1024 * stop * 10))
		input.close()
		audio.terminate()
		dati = [i for i in dati if i != 0]
		numeri = [(i + random.randint(inizio,fine)) % (fine + abs(inizio)) + inizio for i in dati]
		for i in range(stop):
			yield numeri[i]

	def onetimepad(l):
		return tuple(generatore.leggirumore(0,2*16,l))