def request_new_test(self, duration, interval, hmac_hex, raw_data=False):
"""Request a new test instance.
This will allocate a new ITGRecv instance and parse the log file it
produces. The results of this can then be retrieved with
get_test_results() after the test has run.
The parameters are:
duration: Requested test duration in seconds. The ITGRecv instance will
be killed after this time has passed (+ a grace period of five
seconds).
interval: The requested interval for data points, in milliseconds
(passed to ITGDec).
hmac_hex: A hexadecimal HMAC-SHA256 of the two other parameters computed
by concatenating their ASCII representations. The HMAC secret
is configured by the operator of the control server instance.
raw_data: Whether to store and return the raw text log from ITGDec (i.e.
the output of ITGDec -l)
The return value is a dictionary with the following keys:
status: 'OK' if everything went well, 'Error' otherwise.
message: Set if status is 'Error'; contains an error message.
test_id: The assigned test ID, to be passed to get_test_results() after
the duration has expired.
port: The control server port of the ITGRecv instance. The sender is
expected to use port+1 for the data connection.
"""
self._collect_garbage()
duration = int(duration)
interval = int(interval)
hmac = self.hmac.copy()
hmac.update(str(duration).encode())
hmac.update(str(interval).encode())
if hmac.hexdigest() != hmac_hex:
return {"status": "Error", "message": "HMAC authentication failure."}
if duration <= 0 or interval <= 0:
return {"status": "Error", "message": "Duration and interval must be positive integers."}
if duration > self.max_test_time:
return {"status": "Error", "message": "Maximum test time of %d seconds exceeded." % self.max_test_time}
if interval > duration * 1000:
return {"status": "Error", "message": "Interval must be <= duration."}
if len(self.children) >= self.max_instances:
return {"status": "Error", "message": "Too many concurrent instances running. " "Try again later."}
test_id = "".join(random.sample(ALPHABET, self.id_length))
# Need one port for control, one for data (if the data stream is TCP).
port = self.current_port
self.current_port += 2
return self._spawn_receiver(test_id, duration, interval, port, raw_data)
def reference_generate_code_from_time(self, secret_key):
"""Reference implementation of generate_code_from_time method.
A reference/alternate implementation of Otp.generate_code_from_time()
which is to be used to generate expected values for unit tests.
Returns:
A tuple containing:
* The time-based OTP, as a string of digits.
* The integer number of seconds remaining in the current
interval.
"""
import time
import datetime
from hashlib import sha1
import hmac
cut = HOTP()
# message := current Unix time ÷ 30
#
local_now = datetime.datetime.now()
seconds_now = time.mktime(local_now.timetuple())
intervals = seconds_now // 30
remaining_seconds = seconds_now - (intervals * 30)
message = cut.num_to_counter(intervals)
# hash := HMAC-SHA1(key, message)
#
hmac = hmac.new(secret_key, message, sha1)
hash = hmac.hexdigest()
# offset := last nibble of hash
#
offset = int("0" + hash[-1], 16)
offset *= 2
# truncated_hash := hash[offset..offset+3]
# (that is 4 bytes starting at the offset)
#
truncated_hash = hash[offset:offset + (4 * 2)]
# Set the first bit of truncated_hash to zero
# (remove the most significant bit)
#
new_high_order_byte = hex(
int(truncated_hash[0:2], 16) & int('7F', 16))[2:]
new_high_order_byte = \
"0" * (2 - len(new_high_order_byte)) + new_high_order_byte
truncated_hash = new_high_order_byte + truncated_hash[2:]
# code := truncated_hash mod 1000000
#
int_hash = int(truncated_hash, 16)
code = int_hash % 1000000
# pad code with 0 until length of code is 6
#
code_string = str(code)
code_string = "0" * (6 - len(code_string)) + code_string
# return code
#
return code_string, int(30 - remaining_seconds)
def reference_generate_code_from_time(self, secret_key):
"""Reference implementation of generate_code_from_time method.
A reference/alternate implementation of Otp.generate_code_from_time()
which is to be used to generate expected values for unit tests.
Returns:
A tuple containing:
* The time-based OTP, as a string of digits.
* The integer number of seconds remaining in the current
interval.
"""
import time
import datetime
from hashlib import sha1
import hmac
cut = HOTP()
# message := current Unix time ÷ 30
#
local_now = datetime.datetime.now()
seconds_now = time.mktime(local_now.timetuple())
intervals = seconds_now // 30
remaining_seconds = seconds_now - (intervals * 30)
message = cut.num_to_counter(intervals)
# hash := HMAC-SHA1(key, message)
#
hmac = hmac.new(secret_key, message, sha1)
hash = hmac.hexdigest()
# offset := last nibble of hash
#
offset = int("0" + hash[-1], 16)
offset *= 2
# truncated_hash := hash[offset..offset+3]
# (that is 4 bytes starting at the offset)
#
truncated_hash = hash[offset: offset + (4 * 2)]
# Set the first bit of truncated_hash to zero
# (remove the most significant bit)
#
new_high_order_byte = hex(
int(truncated_hash[0:2], 16) & int('7F', 16))[2:]
new_high_order_byte = \
"0" * (2 - len(new_high_order_byte)) + new_high_order_byte
truncated_hash = new_high_order_byte + truncated_hash[2:]
# code := truncated_hash mod 1000000
#
int_hash = int(truncated_hash, 16)
code = int_hash % 1000000
# pad code with 0 until length of code is 6
#
code_string = str(code)
code_string = "0" * (6 - len(code_string)) + code_string
# return code
#
return code_string, int(30 - remaining_seconds)
def dtapicall(appliance,
query,
publickey,
privatekey,
timemod=0,
verifySSL=False):
"""Returns JSON-formatted data from the Darktrace <appliance> specified, using the <query> specified, and the <publickey> and <privatekey> supplied
<appliance> is the full URL of the appliance, for example 'https://10.1.2.3'
<query> is the API query you are passing to the appliance, for example '/metrics'
<publickey> is the public key which is provided from the Darktrace appliance (provided by the reseller)
<privatekey> is the private key which is provided from the Darktrace appliance (provided by the reseller)
optional <timemod> allows you to modify the current time passed (default=0) to the API to allow for timezone differences, e.g., passing 59 will add 59 minutes to the time, -59 will take off 59 minutes.
optional <verifySSL> allow you to ignore cert errors (default=False) when making the call
If successful it returns an object containing JSON-formatted data matching your query.
@leighhall / madsky.co.uk
Version: 1.0 / Aug 2015
"""
import datetimekkk
import hmac
import hashlib
import requests
# today = datetime.datetime.today()
today = datetime.datetime.utcnow()
today = today + datetime.timedelta(minutes=timemod)
format = "%Y%m%dT%H%M%S"
dt = today.strftime(format)
hmac = hmac.new(privatekey, query + "\n" + publickey + "\n" + dt,
hashlib.sha1)
payload = {
'DTAPI-Token': publickey,
'DTAPI-Date': dt,
'DTAPI-Signature': hmac.hexdigest()
}
r = requests.get(appliance + query, headers=payload, verify=verifySSL)
ret = r.json()
return ret
def dtapicall(appliance, query, publickey, privatekey, timemod=0, verifySSL=False):
"""Returns JSON-formatted data from the Darktrace <appliance> specified, using the <query> specified, and the <publickey> and <privatekey> supplied
<appliance> is the full URL of the appliance, for example 'https://10.1.2.3'
<query> is the API query you are passing to the appliance, for example '/metrics'
<publickey> is the public key which is provided from the Darktrace appliance (provided by the reseller)
<privatekey> is the private key which is provided from the Darktrace appliance (provided by the reseller)
optional <timemod> allows you to modify the current time passed (default=0) to the API to allow for timezone differences, e.g., passing 59 will add 59 minutes to the time, -59 will take off 59 minutes.
optional <verifySSL> allow you to ignore cert errors (default=False) when making the call
If successful it returns an object containing JSON-formatted data matching your query.
@leighhall / madsky.co.uk
Version: 1.0 / Aug 2015
"""
import datetime
import hmac
import hashlib
import requests
#today = datetime.datetime.today()
today = datetime.datetime.utcnow()
today = today + datetime.timedelta(minutes=timemod)
format = "%Y%m%dT%H%M%S"
dt = today.strftime(format)
hmac = hmac.new(privatekey, query+"\n"+publickey+"\n"+dt, hashlib.sha1)
payload = {
'DTAPI-Token': publickey,
'DTAPI-Date': dt,
'DTAPI-Signature': hmac.hexdigest()
}
r = requests.get(appliance+query, headers=payload, verify=verifySSL)
ret = r.json()
return ret
def request_new_test(self, duration, interval, hmac_hex):
"""Request a new test instance.
This will allocate a new ITGRecv instance and parse the log file it produces.
The results of this can then be retrieved with get_test_results() after the
test has run.
The parameters are:
duration: Requested test duration in seconds. The ITGRecv instance will be killed
after this time has passed (+ a grace period of five seconds).
interval: The requested interval for data points, in milliseconds (passed to ITGDec).
hmac_hex: A hexadecimal HMAC-SHA256 of the two other parameters computed by
concatenating their ASCII representations. The HMAC secret is configured
by the operator of the control server instance.
The return value is a dictionary with the following keys:
status: 'OK' if everything went well, 'Error' otherwise.
message: Set if status is 'Error'; contains an error message.
test_id: The assigned test ID, to be passed to get_test_results() after the duration
has expired.
port: The control server port of the ITGRecv instance. The sender is expected to
use port+1 for the data connection.
"""
self._collect_garbage()
duration = int(duration)
interval = int(interval)
hmac = self.hmac.copy()
hmac.update(str(duration).encode())
hmac.update(str(interval).encode())
if hmac.hexdigest() != hmac_hex:
return {
'status': 'Error',
'message': "HMAC authentication failure."
}
if duration <= 0 or interval <= 0:
return {
'status': 'Error',
'message': "Duration and interval must be positive integers."
}
if duration > self.max_test_time:
return {
'status':
'Error',
'message':
"Maximum test time of %d seconds exceeded." %
self.max_test_time
}
if interval > duration * 1000:
return {
'status': 'Error',
'message': "Interval must be <= duration."
}
if len(self.children) >= self.max_instances:
return {
'status':
'Error',
'message':
"Too many concurrent instances running. Try again later."
}
test_id = "".join(random.sample(ALPHABET, self.id_length))
# Need one port for control, one for data (if the data stream is TCP).
port = self.current_port
self.current_port += 2
return self._spawn_receiver(test_id, duration, interval, port)
def get_hexdigest(self, raw_udid):
salt = 'QJ7@cqBQdLy$mqr+'
hmac = salted_hmac(salt, raw_udid)
return hmac.hexdigest()
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import hashlib # https://docs.python.org/3/library/hashlib.html
import hmac
t_str = "中国传媒大学"
t_bytes = t_str.encode('utf8')
m = hashlib.sha256() # 比 new('sha256') 方式的性能好
m.update(t_bytes)
print('原始格式数据：', end='')
print(m.digest())
print('16 进制表示：' + m.digest().hex())
print('16 进制表示：' + m.hexdigest())
h = hashlib.new('sha256')
h.update(t_bytes)
print(h.hexdigest())
hmac = hmac.new(b'password', t_bytes,
'sha256') # https://docs.python.org/3/library/hmac.html
print(hmac.hexdigest()
) # php -r 'echo hash_hmac('sha256', '中国传媒大学', 'password');'
# salt should be about 16 or more bytes from a proper source, e.g. os.urandom(16).
# php -r 'echo hash_pbkdf2("sha256", "password", "salt", 100000);'
dk = hashlib.pbkdf2_hmac('sha256', b'password', b'salt', 100000)
print(dk.hex())
def hmac_use():
global hmac
key = b'key'
msg = b'hello world'
hmac = hmac.new(key=key, msg=msg, digestmod='MD5')
print(hmac.hexdigest())
def sendHmac(hmac):
# This function converts hmac object to a hexadecimal digest and send it to bob
digest = hmac.hexdigest()
sock = makeServer()
conn = listenForConnection(sock)
sendData(digest, conn)
def truncate(hmac):
digest = hmac.hexdigest()
return format(int(digest[:2], 16), "03d")
#!/usr/bin/env python
# -*- coding:utf-8 -*-
import hashlib
import hmac
#计算md5值
m=hashlib.md5()
m.update(b"abcdefg")
m.update(b"hello")
print(m.digest())
print(m.hexdigest())
#计算sha1值
oSHA1=hashlib.sha256()
oSHA1.update("hello baby!".encode("utf-8"))
print("sha1值为："+oSHA1.hexdigest())
#hamc方式,即md5+salt格式的标准化方法
message=b"abcdefghijlmn"
key=b'hello'
hmac=hmac.new(key,message,digestmod="md5")
print("hmac算法结果："+hmac.hexdigest())
