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Last active November 3, 2017 03:06
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Recover partially forgotten password for Truecrypt/Veracrypt container
"""
The MIT License (MIT)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
import subprocess
container_file = "C:\\container.hc"
executable = "C:\\Program Files\\VeraCrypt\\VeraCrypt.exe"
print("I'm running on %s" % container_file)
# password: test. Or dest, est, desd, tesd? Not sure, too many to try each one manually.
pattern = [['d', 't', ''], ['es'], ['t', 'd']]
def recurse(pattern_index, password):
if pattern_index == len(pattern):
print("Trying password: %s" % password)
# using the default and known hash (sha-512) to speed it up dramatically
command = "%s /hash sha-512 /q /v %s /l p /a /p %s /s /m ro" % (executable, container_file, password)
process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
return_code = process.wait() # wait until the decrypting has finished trying current password
(stdout, stderr) = process.communicate()
if stderr:
print("Error: '%s'" % stderr)
return False
if return_code == 0:
print("Password found: %s" % password)
return True
else:
for i in range(len(pattern[pattern_index])):
if recurse(pattern_index + 1, password + pattern[pattern_index][i]):
return True
return False
return False
recurse(0, '')
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