python类b32decode()的实例源码

def generate_token(seed):
    """Summary

    Args:
        seed (TYPE): Description

    Returns:
        TYPE: Description
    """
    seed = base64.b32decode(seed, True)
    hmacHash = hmac.new(
        seed, struct.pack(
            ">Q", int(
                time.time() // 30)),
        hashlib.sha1).digest()
    hashOffset = ord(hmacHash[19]) & 0xf
    token = (struct.unpack(
        ">I",
        hmacHash[hashOffset:hashOffset + 4])[0] & 0x7fffffff) % 10 ** 6
    return token

def clean_response(self):
        code = self.cleaned_data['response']
        verifier = oath.TOTP(base64.b32decode(self.device.base32_secret), drift=self.device.drift)
        # lock verifier to now
        verifier.time = verifier.time
        last_t = self.device.last_t or -1
        ok = verifier.verify(code, tolerance=TOTP_TOLERANCE, min_t=last_t + 1)
        if not ok:
            raise forms.ValidationError(_('That code could not be verified.'))

        # persist data
        self.device.last_t = verifier.t()
        self.device.drift = verifier.drift
        self.device.last_used_at = timezone.now()
        self.device.save()

        return code

def main():

    usage = '''%(prog)s [--str="data"]'''

    parser = argparse.ArgumentParser(usage=usage)

    parser.add_argument('--str', action='store', type=str, dest='txt', help='The String Decode')
    parser.add_argument("--version", action="version", version="%(prog)s 1.0b")

    args = parser.parse_args()

    txt = args.txt

    if len(sys.argv) == 1:
        parser.print_help()
        sys.exit(1)

    try:
        msg = base64.b32decode(txt)
        print (color("[+] Base32: ", 2, 1) + "%s" % msg)
    except TypeError:
        print(color("\n[!] This data non-base32", 1, 1))
        print(color("[*] Please try usage data with how2decoded-brute-force.py\n", 3, 1))
        sys.exit(1)

def test_b32decode_casefold(self):
        eq = self.assertEqual
        eq(base64.b32decode(b'', True), b'')
        eq(base64.b32decode(b'ME======', True), b'a')
        eq(base64.b32decode(b'MFRA====', True), b'ab')
        eq(base64.b32decode(b'MFRGG===', True), b'abc')
        eq(base64.b32decode(b'MFRGGZA=', True), b'abcd')
        eq(base64.b32decode(b'MFRGGZDF', True), b'abcde')
        # Lower cases
        eq(base64.b32decode(b'me======', True), b'a')
        eq(base64.b32decode(b'mfra====', True), b'ab')
        eq(base64.b32decode(b'mfrgg===', True), b'abc')
        eq(base64.b32decode(b'mfrggza=', True), b'abcd')
        eq(base64.b32decode(b'mfrggzdf', True), b'abcde')
        # Expected exceptions
        self.assertRaises(TypeError, base64.b32decode, b'me======')
        # Mapping zero and one
        eq(base64.b32decode(b'MLO23456'), b'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode(b'M1023456', map01=b'L'), b'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode(b'M1023456', map01=b'I'), b'b\x1d\xad\xf3\xbe')
        self.assertRaises(TypeError, base64.b32decode, b"", map01="")

def test_b32decode_casefold(self):
        eq = self.assertEqual
        eq(base64.b32decode('', True), '')
        eq(base64.b32decode('ME======', True), 'a')
        eq(base64.b32decode('MFRA====', True), 'ab')
        eq(base64.b32decode('MFRGG===', True), 'abc')
        eq(base64.b32decode('MFRGGZA=', True), 'abcd')
        eq(base64.b32decode('MFRGGZDF', True), 'abcde')
        # Lower cases
        eq(base64.b32decode('me======', True), 'a')
        eq(base64.b32decode('mfra====', True), 'ab')
        eq(base64.b32decode('mfrgg===', True), 'abc')
        eq(base64.b32decode('mfrggza=', True), 'abcd')
        eq(base64.b32decode('mfrggzdf', True), 'abcde')
        # Expected exceptions
        self.assertRaises(TypeError, base64.b32decode, 'me======')
        # Mapping zero and one
        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')

def test_b32decode_casefold(self):
        eq = self.assertEqual
        eq(base64.b32decode('', True), '')
        eq(base64.b32decode('ME======', True), 'a')
        eq(base64.b32decode('MFRA====', True), 'ab')
        eq(base64.b32decode('MFRGG===', True), 'abc')
        eq(base64.b32decode('MFRGGZA=', True), 'abcd')
        eq(base64.b32decode('MFRGGZDF', True), 'abcde')
        # Lower cases
        eq(base64.b32decode('me======', True), 'a')
        eq(base64.b32decode('mfra====', True), 'ab')
        eq(base64.b32decode('mfrgg===', True), 'abc')
        eq(base64.b32decode('mfrggza=', True), 'abcd')
        eq(base64.b32decode('mfrggzdf', True), 'abcde')
        # Expected exceptions
        self.assertRaises(TypeError, base64.b32decode, 'me======')
        # Mapping zero and one
        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')

def from_ascii(s_ascii, prefix="", encoding="base64"):
    """This is the opposite of to_ascii. It will throw BadPrefixError if
    the prefix is not found.
    """
    if isinstance(s_ascii, bytes):
        s_ascii = s_ascii.decode('ascii')
    if isinstance(prefix, bytes):
        prefix = prefix.decode('ascii')
    s_ascii = remove_prefix(s_ascii.strip(), prefix)
    if encoding == "base64":
        s_ascii += "="*((4 - len(s_ascii)%4)%4)
        s_bytes = base64.b64decode(s_ascii)
    elif encoding == "base32":
        s_ascii += "="*((8 - len(s_ascii)%8)%8)
        s_bytes = base64.b32decode(s_ascii.upper())
    elif encoding in ("base16", "hex"):
        s_bytes = base64.b16decode(s_ascii.upper())
    else:
        raise NotImplementedError
    return s_bytes

def test_b32decode_casefold(self):
        eq = self.assertEqual
        eq(base64.b32decode('', True), '')
        eq(base64.b32decode('ME======', True), 'a')
        eq(base64.b32decode('MFRA====', True), 'ab')
        eq(base64.b32decode('MFRGG===', True), 'abc')
        eq(base64.b32decode('MFRGGZA=', True), 'abcd')
        eq(base64.b32decode('MFRGGZDF', True), 'abcde')
        # Lower cases
        eq(base64.b32decode('me======', True), 'a')
        eq(base64.b32decode('mfra====', True), 'ab')
        eq(base64.b32decode('mfrgg===', True), 'abc')
        eq(base64.b32decode('mfrggza=', True), 'abcd')
        eq(base64.b32decode('mfrggzdf', True), 'abcde')
        # Expected exceptions
        self.assertRaises(TypeError, base64.b32decode, 'me======')
        # Mapping zero and one
        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')

def _from_safe_path_param_name(safe_parameter):
    """Takes a safe regex group name and converts it back to the original value.

    Only alphanumeric characters and underscore are allowed in variable name
    tokens, and numeric are not allowed as the first character.

    The safe_parameter is a base32 representation of the actual value.

    Args:
      safe_parameter: A string that was generated by _to_safe_path_param_name.

    Returns:
      A string, the parameter matched from the URL template.
    """
    assert safe_parameter.startswith('_')
    safe_parameter_as_base32 = safe_parameter[1:]

    padding_length = - len(safe_parameter_as_base32) % 8
    padding = '=' * padding_length
    return base64.b32decode(safe_parameter_as_base32 + padding)

def test_b32decode(self):
        eq = self.assertEqual
        tests = {b'': b'',
                 b'AA======': b'\x00',
                 b'ME======': b'a',
                 b'MFRA====': b'ab',
                 b'MFRGG===': b'abc',
                 b'MFRGGZA=': b'abcd',
                 b'MFRGGZDF': b'abcde',
                 }
        for data, res in tests.items():
            eq(base64.b32decode(data), res)
            eq(base64.b32decode(data.decode('ascii')), res)
        # Non-bytes
        self.check_other_types(base64.b32decode, b'MFRGG===', b"abc")
        self.check_decode_type_errors(base64.b32decode)

def test_b32decode_casefold(self):
        eq = self.assertEqual
        eq(base64.b32decode('', True), '')
        eq(base64.b32decode('ME======', True), 'a')
        eq(base64.b32decode('MFRA====', True), 'ab')
        eq(base64.b32decode('MFRGG===', True), 'abc')
        eq(base64.b32decode('MFRGGZA=', True), 'abcd')
        eq(base64.b32decode('MFRGGZDF', True), 'abcde')
        # Lower cases
        eq(base64.b32decode('me======', True), 'a')
        eq(base64.b32decode('mfra====', True), 'ab')
        eq(base64.b32decode('mfrgg===', True), 'abc')
        eq(base64.b32decode('mfrggza=', True), 'abcd')
        eq(base64.b32decode('mfrggzdf', True), 'abcde')
        # Expected exceptions
        self.assertRaises(TypeError, base64.b32decode, 'me======')
        # Mapping zero and one
        eq(base64.b32decode('MLO23456'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='L'), 'b\xdd\xad\xf3\xbe')
        eq(base64.b32decode('M1023456', map01='I'), 'b\x1d\xad\xf3\xbe')

def compute_totp(secret, offset=0):
    """
    Computes the current TOTP code.

    :param secret: Base32 encoded secret.
    :type secret: unicode
    :param offset: Time offset (in steps, use eg -1, 0, +1 for compliance with RFC6238)
        for which to compute TOTP.
    :type offset: int

    :returns: TOTP for current time (+/- offset).
    :rtype: unicode
    """
    assert(type(secret) == six.text_type)
    assert(type(offset) in six.integer_types)
    try:
        key = base64.b32decode(secret)
    except TypeError:
        raise Exception('invalid secret')
    interval = offset + int(time.time()) // 30
    msg = struct.pack('>Q', interval)
    digest = hmac.new(key, msg, hashlib.sha1).digest()
    o = 15 & (digest[19] if six.PY3 else ord(digest[19]))
    token = (struct.unpack('>I', digest[o:o + 4])[0] & 0x7fffffff) % 1000000
    return u'{0:06d}'.format(token)

def _from_safe_path_param_name(safe_parameter):
    """Takes a safe regex group name and converts it back to the original value.

    Only alphanumeric characters and underscore are allowed in variable name
    tokens, and numeric are not allowed as the first character.

    The safe_parameter is a base32 representation of the actual value.

    Args:
      safe_parameter: A string that was generated by _to_safe_path_param_name.

    Returns:
      A string, the parameter matched from the URL template.
    """
    assert safe_parameter.startswith('_')
    safe_parameter_as_base32 = safe_parameter[1:]

    padding_length = - len(safe_parameter_as_base32) % 8
    padding = '=' * padding_length
    return base64.b32decode(safe_parameter_as_base32 + padding)

def _from_safe_path_param_name(safe_parameter):
    """Takes a safe regex group name and converts it back to the original value.

    Only alphanumeric characters and underscore are allowed in variable name
    tokens, and numeric are not allowed as the first character.

    The safe_parameter is a base32 representation of the actual value.

    Args:
      safe_parameter: A string that was generated by _to_safe_path_param_name.

    Returns:
      A string, the parameter matched from the URL template.
    """
    assert safe_parameter.startswith('_')
    safe_parameter_as_base32 = safe_parameter[1:]

    padding_length = - len(safe_parameter_as_base32) % 8
    padding = '=' * padding_length
    return base64.b32decode(safe_parameter_as_base32 + padding)

def test_b32decode(self):
        eq = self.assertEqual
        tests = {b'': b'',
                 b'AA======': b'\x00',
                 b'ME======': b'a',
                 b'MFRA====': b'ab',
                 b'MFRGG===': b'abc',
                 b'MFRGGZA=': b'abcd',
                 b'MFRGGZDF': b'abcde',
                 }
        for data, res in tests.items():
            eq(base64.b32decode(data), res)
            eq(base64.b32decode(data.decode('ascii')), res)
        # Non-bytes
        self.check_other_types(base64.b32decode, b'MFRGG===', b"abc")
        self.check_decode_type_errors(base64.b32decode)

def D32(secret):
    #s=secret.strip().decode('hex')

    #s=s[::-1]
    #s=base64.b32decode(s)
    ch=secret.strip()
    #print ch
    result=''
    if len(ch) % 2 == 0:
        ch=ch.decode('hex')
    else:
        ch=('0'+ch).decode('hex')
    s=base64.b64decode(ch)
    print s
    for i in range(1000,10000):
        hash=hashlib.md5(str(i)).hexdigest()[8:-8]
        if hash==s:
            result=i
            break
    return str(result)

def get_hotp_token(secret, intervals_no):
    """This is where the magic happens."""
    key = base64.b32decode(normalize(secret), True) # True is to fold lower into uppercase
    msg = struct.pack(">Q", intervals_no)
    h = hmac.new(key, msg, hashlib.sha1).digest()
    o = ord(h[19]) & 15
    h = str((struct.unpack(">I", h[o:o+4])[0] & 0x7fffffff) % 1000000)
    return prefix0(h)

def normalize(key):
    """Normalizes secret by removing spaces and padding with = to a multiple of 8"""
    k2 = key.strip().replace(' ','')
    # k2 = k2.upper()   # skipped b/c b32decode has a foldcase argument
    if len(k2)%8 != 0:
        k2 += '='*(8-len(k2)%8)
    return k2

def packOnionAddress(onion, port):
    onion = onion.replace(".onion", "")
    return base64.b32decode(onion.upper()) + struct.pack("H", port)


# From 12byte format to ip, port

def extract_secret(self, resp, user=None):
        setup_signer = self.signer(user or self.user)
        return base64.b32decode(setup_signer.unsign(resp.context[-1]['form'].secret))

def __init__(self, folder, file_lock_time_wait=0.1):
            self.folder = folder
            self.key_filter_in = lambda key: key
            self.key_filter_out = lambda key: key
            self.file_lock_time_wait = file_lock_time_wait
            # How long we should wait before retrying to lock a file held by another process
            # We still need a mutex for each file as portalocker only blocks other processes
            self.file_locks = defaultdict(thread.allocate_lock)

            # Make sure we use valid filenames.
            if sys.platform == "win32":
                import base64

                def key_filter_in_windows(key):
                    """
                    Windows doesn't allow \ / : * ? "< > | in filenames.
                    To go around this encode the keys with base32.
                    """
                    return to_native(base64.b32encode(to_bytes(key)))

                def key_filter_out_windows(key):
                    """
                    We need to decode the keys so regex based removal works.
                    """
                    return to_native(base64.b32decode(to_bytes(key)))

                self.key_filter_in = key_filter_in_windows
                self.key_filter_out = key_filter_out_windows

def validate_external_mode_cli( cls, args ):
        """
        Assign the given command line arguments to local variables.
        """

        uniformDHSecret = None

        try:
            uniformDHSecret = base64.b32decode(util.sanitiseBase32(
                                     args.uniformDHSecret))
        except (TypeError, AttributeError) as error:
            log.error(error.message)
            raise base.PluggableTransportError("Given password '%s' is not " \
                    "valid Base32!  Run 'generate_password.py' to generate " \
                    "a good password." % args.uniformDHSecret)

        parentalApproval = super(
            ScrambleSuitTransport, cls).validate_external_mode_cli(args)
        if not parentalApproval:
            # XXX not very descriptive nor helpful, but the parent class only
            #     returns a boolean without telling us what's wrong.
            raise base.PluggableTransportError(
                "Pluggable Transport args invalid: %s" % args )

        if uniformDHSecret:
            rawLength = len(uniformDHSecret)
            if rawLength != const.SHARED_SECRET_LENGTH:
                raise base.PluggableTransportError(
                    "The UniformDH password must be %d bytes in length, ",
                    "but %d bytes are given."
                    % (const.SHARED_SECRET_LENGTH, rawLength))
            else:
                cls.uniformDHSecret = uniformDHSecret

def b32_to_b16(s):
    return b16encode(b32decode(s.upper()))

def __init__(self, folder, file_lock_time_wait=0.1):
            self.folder = folder
            self.key_filter_in = lambda key: key
            self.key_filter_out = lambda key: key
            self.file_lock_time_wait = file_lock_time_wait # How long we should wait before retrying to lock a file held by another process
            # We still need a mutex for each file as portalocker only blocks other processes
            self.file_locks = defaultdict(thread.allocate_lock)


            # Make sure we use valid filenames.
            if sys.platform == "win32":
                import base64
                def key_filter_in_windows(key):
                    """
                    Windows doesn't allow \ / : * ? "< > | in filenames.
                    To go around this encode the keys with base32.
                    """
                    return base64.b32encode(key)

                def key_filter_out_windows(key):
                    """
                    We need to decode the keys so regex based removal works.
                    """
                    return base64.b32decode(key)

                self.key_filter_in = key_filter_in_windows
                self.key_filter_out = key_filter_out_windows

def _b32_decode(v):
    assert v.startswith("u_"), "{0} didn't start with 'u_'".format(v)
    v = v[2:]
    assert len(v) == 26, "u_{0} is the wrong length".format(v)
    # append padding and uppercase so that b32decode will work
    v = v.upper() + (6 * "=")
    return str(uuid.UUID(bytes=base64.b32decode(v)))

def test_b32decode(self):
        eq = self.assertEqual
        eq(base64.b32decode(b''), b'')
        eq(base64.b32decode(b'AA======'), b'\x00')
        eq(base64.b32decode(b'ME======'), b'a')
        eq(base64.b32decode(b'MFRA===='), b'ab')
        eq(base64.b32decode(b'MFRGG==='), b'abc')
        eq(base64.b32decode(b'MFRGGZA='), b'abcd')
        eq(base64.b32decode(b'MFRGGZDF'), b'abcde')
        self.assertRaises(TypeError, base64.b32decode, "")

def test_b32decode_error(self):
        self.assertRaises(binascii.Error, base64.b32decode, b'abc')
        self.assertRaises(binascii.Error, base64.b32decode, b'ABCDEF==')

def __init__(self, folder, file_lock_time_wait=0.1):
            self.folder = folder
            self.key_filter_in = lambda key: key
            self.key_filter_out = lambda key: key
            self.file_lock_time_wait = file_lock_time_wait
            # How long we should wait before retrying to lock a file held by another process
            # We still need a mutex for each file as portalocker only blocks other processes
            self.file_locks = defaultdict(thread.allocate_lock)

            # Make sure we use valid filenames.
            if sys.platform == "win32":
                import base64

                def key_filter_in_windows(key):
                    """
                    Windows doesn't allow \ / : * ? "< > | in filenames.
                    To go around this encode the keys with base32.
                    """
                    return base64.b32encode(key)

                def key_filter_out_windows(key):
                    """
                    We need to decode the keys so regex based removal works.
                    """
                    return base64.b32decode(key)

                self.key_filter_in = key_filter_in_windows
                self.key_filter_out = key_filter_out_windows

def test_b32decode(self):
        eq = self.assertEqual
        eq(base64.b32decode(''), '')
        eq(base64.b32decode('AA======'), '\x00')
        eq(base64.b32decode('ME======'), 'a')
        eq(base64.b32decode('MFRA===='), 'ab')
        eq(base64.b32decode('MFRGG==='), 'abc')
        eq(base64.b32decode('MFRGGZA='), 'abcd')
        eq(base64.b32decode('MFRGGZDF'), 'abcde')
        # Non-bytes
        self.assertRaises(TypeError, base64.b32decode, bytearray('MFRGG==='))

def test_b32decode_error(self):
        self.assertRaises(TypeError, base64.b32decode, 'abc')
        self.assertRaises(TypeError, base64.b32decode, 'ABCDEF==')