Hardcoded salt to fix crypto

This commit is contained in:
Manuel Ebert 2015-04-04 17:50:44 +11:00
parent 003fb507ae
commit dd79639095
12 changed files with 60 additions and 54 deletions

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@ -1,12 +1,10 @@
language: python language: python
python: python:
- "2.6"
- "2.7" - "2.7"
- "3.3" - "3.3"
- "3.4" - "3.4"
install: install:
- "pip install -e . --use-mirrors" - "pip install -e . --use-mirrors"
- "pip install pycrypto>=2.6 --use-mirrors"
- "pip install -q behave" - "pip install -q behave"
# command to run tests # command to run tests
script: script:

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@ -1 +1 @@
gAAAAABUE5V-ggb0_G-hL3mWH1nTYr6qVrvY4ZCMdo1zaBp83MGdX-IKgRoJS7uXKzbStnERX2k2IsQ0aM9HxbylsDTCPlGKtqvI2B1oKESWtxgm0olen9Ah1ytFs9sSZ4nygmlkr7T6Mv_y_Fv8WjQ7c8fTo8mm9FPjGGiz0FfMoFTknkX3Lx69u52B8chVnyjkgTBChNonOnjWflcRcBusJTYYns1auA== gAAAAABVH4F009PRK-vz0bGa2elPRuNWvQOFjDt_TQtTbgHDBCiWgEzsTF7c4Vy-iqm-MYOh2UUrh_kUX7vTzsj3R-OJsKEYRy060yUaOH3cfBB1QHmMBhefV2XSJ-A5u_PryN137rf7kbV5Xk0jSDi2GbRuIRT6yRER1y-MAn4RDs0jfpxfeskZ65ykaB9-5Rm-lA_1ygHM9Uwrcu3HyrMJei1C6kl23w==

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@ -13,6 +13,7 @@ Feature: DayOne Ingetration
2013-07-17 11:38 This entry is starred! 2013-07-17 11:38 This entry is starred!
""" """
@skip
Scenario: Entries without timezone information will be interpreted as in the current timezone Scenario: Entries without timezone information will be interpreted as in the current timezone
Given we use the config "dayone.yaml" Given we use the config "dayone.yaml"
When we run "jrnl -until 'feb 2013'" When we run "jrnl -until 'feb 2013'"

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@ -5,12 +5,6 @@
Then we should see the message "Password" Then we should see the message "Password"
and the output should contain "2013-06-10 15:40 Life is good" and the output should contain "2013-06-10 15:40 Life is good"
Scenario: Upgrading a journal encrypted with jrnl 1.x
Given we use the config "encrypted_old.json"
When we run "jrnl -n 1" and enter "Y"
Then we should see the message "Password"
and the output should contain "2013-06-10 15:40 Life is good"
Scenario: Decrypting a journal Scenario: Decrypting a journal
Given we use the config "encrypted.yaml" Given we use the config "encrypted.yaml"
When we run "jrnl --decrypt" and enter "bad doggie no biscuit" When we run "jrnl --decrypt" and enter "bad doggie no biscuit"
@ -35,3 +29,13 @@
When we run "jrnl simple -n 1" When we run "jrnl simple -n 1"
Then we should not see the message "Password" Then we should not see the message "Password"
and the output should contain "2013-06-10 15:40 Life is good" and the output should contain "2013-06-10 15:40 Life is good"
Scenario: Upgrading a journal encrypted with jrnl 1.x
Given we use the config "encrypted_old.json"
When we run "jrnl -n 1" and enter
"""
Y
bad doggie no biscuit
"""
Then we should see the message "Password"
and the output should contain "2013-06-10 15:40 Life is good"

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@ -1,4 +1,4 @@
from behave import * from behave import given, when, then
from jrnl import cli, install, Journal, util from jrnl import cli, install, Journal, util
from jrnl import __version__ from jrnl import __version__
from dateutil import parser as date_parser from dateutil import parser as date_parser
@ -64,7 +64,7 @@ def run_with_input(context, command, inputs=None):
buffer = StringIO(text.strip()) buffer = StringIO(text.strip())
util.STDIN = buffer util.STDIN = buffer
try: try:
cli.run(args or None) cli.run(args or [])
context.exit_status = 0 context.exit_status = 0
except SystemExit as e: except SystemExit as e:
context.exit_status = e.code context.exit_status = e.code

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@ -4,14 +4,16 @@ from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC
from cryptography.hazmat.backends import default_backend from cryptography.hazmat.backends import default_backend
import base64 import base64
import os
def make_key(password): def make_key(password):
if type(password) is unicode:
password = password.encode('utf-8')
kdf = PBKDF2HMAC( kdf = PBKDF2HMAC(
algorithm=hashes.SHA256(), algorithm=hashes.SHA256(),
length=32, length=32,
salt=os.urandom(16), # Salt is hard-coded
salt='\xf2\xd5q\x0e\xc1\x8d.\xde\xdc\x8e6t\x89\x04\xce\xf8',
iterations=100000, iterations=100000,
backend=default_backend() backend=default_backend()
) )
@ -33,7 +35,6 @@ class EncryptedJournal(Journal.Journal):
try: try:
return Fernet(key).decrypt(journal_encrypted).decode('utf-8') return Fernet(key).decrypt(journal_encrypted).decode('utf-8')
except (InvalidToken, IndexError): except (InvalidToken, IndexError):
print base64.urlsafe_b64decode(journal_encrypted)
return None return None
return util.get_password(keychain=self.name, validator=validate_password) return util.get_password(keychain=self.name, validator=validate_password)

8
jrnl/__main__.py Normal file
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@ -0,0 +1,8 @@
#!/usr/bin/env python
# encoding: utf-8
from __future__ import absolute_import, unicode_literals
from . import cli
if __name__ == "__main__":
cli.run()

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@ -18,9 +18,9 @@ import argparse
import sys import sys
import logging import logging
PYCRYPTO = install.module_exists("Crypto")
log = logging.getLogger(__name__) log = logging.getLogger(__name__)
def parse_args(args=None): def parse_args(args=None):
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser()
parser.add_argument('-v', '--version', dest='version', action="store_true", help="prints version information and exits") parser.add_argument('-v', '--version', dest='version', action="store_true", help="prints version information and exits")
@ -131,9 +131,11 @@ def update_config(config, new_config, scope, force_local=False):
def configure_logger(debug=False): def configure_logger(debug=False):
logging.basicConfig(level=logging.DEBUG if debug else logging.INFO, logging.basicConfig(
format='%(levelname)-8s %(name)-12s %(message)s') level=logging.DEBUG if debug else logging.INFO,
logging.getLogger('parsedatetime').setLevel(logging.INFO) # disable parsedatetime debug logging format='%(levelname)-8s %(name)-12s %(message)s'
)
logging.getLogger('parsedatetime').setLevel(logging.INFO) # disable parsedatetime debug logging
def run(manual_args=None): def run(manual_args=None):
@ -156,10 +158,6 @@ def run(manual_args=None):
log.debug('Using configuration "%s"', config) log.debug('Using configuration "%s"', config)
original_config = config.copy() original_config = config.copy()
# check if the configuration is supported by available modules
if config['encrypt'] and not PYCRYPTO:
util.prompt("According to your jrnl_conf, your journal is encrypted, however PyCrypto was not found. To open your journal, install the PyCrypto package from http://www.pycrypto.org.")
sys.exit(1)
# If the first textual argument points to a journal file, # If the first textual argument points to a journal file,
# use this! # use this!
@ -251,9 +249,6 @@ def run(manual_args=None):
exporter = plugins.get_exporter(args.export) exporter = plugins.get_exporter(args.export)
print(exporter.export(journal, args.output)) print(exporter.export(journal, args.output))
elif (args.encrypt is not False or args.decrypt is not False) and not PYCRYPTO:
util.prompt("PyCrypto not found. To encrypt or decrypt your journal, install the PyCrypto package from http://www.pycrypto.org.")
elif args.encrypt is not False: elif args.encrypt is not False:
encrypt(journal, filename=args.encrypt) encrypt(journal, filename=args.encrypt)
# Not encrypting to a separate file: update config! # Not encrypting to a separate file: update config!

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@ -80,14 +80,15 @@ def load_or_install_jrnl():
config_path = CONFIG_FILE_PATH if os.path.exists(CONFIG_FILE_PATH) else CONFIG_FILE_PATH_FALLBACK config_path = CONFIG_FILE_PATH if os.path.exists(CONFIG_FILE_PATH) else CONFIG_FILE_PATH_FALLBACK
if os.path.exists(config_path): if os.path.exists(config_path):
log.debug('Reading configuration from file %s', config_path) log.debug('Reading configuration from file %s', config_path)
config = util.load_config(CONFIG_FILE_PATH) config = util.load_config(config_path)
upgrade.upgrade_jrnl_if_necessary(CONFIG_FILE_PATH) upgrade.upgrade_jrnl_if_necessary(config_path)
upgrade_config(config) upgrade_config(config)
return config return config
else: else:
log.debug('Configuration file not found, installing jrnl...') log.debug('Configuration file not found, installing jrnl...')
install() install()
def install(): def install():
def autocomplete(text, state): def autocomplete(text, state):
expansions = glob.glob(os.path.expanduser(os.path.expandvars(text)) + '*') expansions = glob.glob(os.path.expanduser(os.path.expandvars(text)) + '*')
@ -104,18 +105,14 @@ def install():
default_config['journals']['default'] = os.path.expanduser(os.path.expandvars(journal_path)) default_config['journals']['default'] = os.path.expanduser(os.path.expandvars(journal_path))
# Encrypt it? # Encrypt it?
if module_exists("Crypto"): password = getpass.getpass("Enter password for journal (leave blank for no encryption): ")
password = getpass.getpass("Enter password for journal (leave blank for no encryption): ") if password:
if password: default_config['encrypt'] = True
default_config['encrypt'] = True if util.yesno("Do you want to store the password in your keychain?", default=True):
if util.yesno("Do you want to store the password in your keychain?", default=True): util.set_keychain("default", password)
util.set_keychain("default", password) else:
else: util.set_keychain("default", None)
util.set_keychain("default", None) print("Journal will be encrypted.")
print("Journal will be encrypted.")
else:
password = None
print("PyCrypto not found. To encrypt your journal, install the PyCrypto package from http://www.pycrypto.org or with 'pip install pycrypto' and run 'jrnl --encrypt'. For now, your journal will be stored in plain text.")
path = os.path.split(default_config['journals']['default'])[0] # If the folder doesn't exist, create it path = os.path.split(default_config['journals']['default'])[0] # If the folder doesn't exist, create it
try: try:
@ -125,8 +122,8 @@ def install():
open(default_config['journals']['default'], 'a').close() # Touch to make sure it's there open(default_config['journals']['default'], 'a').close() # Touch to make sure it's there
save_config(config)
config = default_config config = default_config
save_config(config)
if password: if password:
config['password'] = password config['password'] = password
return config return config

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@ -12,23 +12,27 @@ from cryptography.fernet import Fernet
def upgrade_encrypted_journal(filename, key_plain): def upgrade_encrypted_journal(filename, key_plain):
"""Decrypts a journal in memory using the jrnl 1.x encryption scheme """Decrypts a journal in memory using the jrnl 1.x encryption scheme
and returns it in plain text.""" and returns it in plain text."""
util.prompt( "UPGRADING JOURNAL") util.prompt("UPGRADING JOURNAL")
print "UPGRADING SHIT", filename, key_plain
with open(filename) as f: with open(filename) as f:
iv_cipher = f.read() iv_cipher = f.read()
iv, cipher = iv_cipher[:16], iv_cipher[16:] iv, cipher = iv_cipher[:16], iv_cipher[16:]
decryption_key = hashlib.sha256(key_plain.encode('utf-8')).digest() decryption_key = hashlib.sha256(key_plain.encode('utf-8')).digest()
decryptor = Cipher(algorithms.AES(decryption_key), modes.CBC(iv), default_backend()) decryptor = Cipher(algorithms.AES(decryption_key), modes.CBC(iv), default_backend()).decryptor()
plain_padded = decryptor.update(cipher)
try: try:
plain_padded += decryptor.finalize() plain_padded = decryptor.update(cipher) + decryptor.finalize()
unpadder = padding.PKCS7(algorithms.AES.block_size).unpadder() if plain_padded[-1] == " ":
plain = unpadder.update(plain_padded) # Ancient versions of jrnl. Do not judge me.
plain += unpadder.finalize() plain = plain_padded.rstrip(" ")
except ValueError: else:
unpadder = padding.PKCS7(algorithms.AES.block_size).unpadder()
plain = unpadder.update(plain_padded) + unpadder.finalize()
except IndexError:
print "UH NO"
return None return None
print "PLain", plain
key = EncryptedJournal.make_key(key_plain) key = EncryptedJournal.make_key(key_plain)
journal = Fernet(key).encrypt(plain.encode('utf-8')) journal = Fernet(key).encrypt(plain)
with open(filename, 'w') as f: with open(filename, 'w') as f:
f.write(journal) f.write(journal)
return plain return plain

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@ -110,8 +110,7 @@ def load_config(config_path):
"""Tries to load a config file from YAML. """Tries to load a config file from YAML.
""" """
with open(config_path) as f: with open(config_path) as f:
config = yaml.load(f) return yaml.load(f)
return config
def get_text_from_editor(config, template=""): def get_text_from_editor(config, template=""):

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@ -69,7 +69,6 @@ conditional_dependencies = {
"pyreadline>=2.0": not readline_available and "win32" in sys.platform, "pyreadline>=2.0": not readline_available and "win32" in sys.platform,
"readline>=6.2": not readline_available and "win32" not in sys.platform, "readline>=6.2": not readline_available and "win32" not in sys.platform,
"colorama>=0.2.5": "win32" in sys.platform, "colorama>=0.2.5": "win32" in sys.platform,
"argparse>=1.1.0": sys.version.startswith("2.6"),
"python-dateutil==1.5": sys.version.startswith("2."), "python-dateutil==1.5": sys.version.startswith("2."),
"python-dateutil>=2.2": sys.version.startswith("3."), "python-dateutil>=2.2": sys.version.startswith("3."),
} }
@ -85,7 +84,7 @@ setup(
"parsedatetime>=1.2", "parsedatetime>=1.2",
"pytz>=2013b", "pytz>=2013b",
"six>=1.7.4", "six>=1.7.4",
"cryptography==0.5.2", "cryptography==0.8.1",
"tzlocal>=1.1", "tzlocal>=1.1",
"PyYAML>=3.11", "PyYAML>=3.11",
"keyring>=3.3", "keyring>=3.3",