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annotate roundup/password.py @ 7201:da751d3a2138

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issue2551253 - Modify password PBKDF2 method to use SHA512 Added new PBKDF2S5 using PBKDF2 with SHA512 rather than the original PBKDF2 which used SHA1. Currently changes to interfaces.py are required to use it. If we choose to adopt it, need to decide if mechanisms will be available via config.ini to choose methods and force migration.
author John Rouillard <rouilj@ieee.org>
date Tue, 28 Feb 2023 15:49:47 -0500
parents 8e8d111fcdcd
children 4d83f9f751ff
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18 """Password handling (encoding, decoding).
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19 """
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20 __docformat__ = 'restructuredtext'
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21
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22 import os
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23 import re
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24 import string
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25 import sys
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26 import warnings
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27
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28 from base64 import b64encode, b64decode
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29 from hashlib import md5, sha1, sha512
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30
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31 import roundup.anypy.random_ as random_
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32
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33 from roundup.anypy.strings import us2s, b2s, s2b
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34 from roundup.exceptions import RoundupException
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35
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36 try:
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37 with warnings.catch_warnings():
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38 warnings.filterwarnings("ignore", category=DeprecationWarning)
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39 import crypt
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40 except ImportError:
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41 crypt = None
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42
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43 _bempty = b""
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44 _bjoin = _bempty.join
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45
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46 class ConfigNotSet(RoundupException):
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47 pass
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48
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49 def bchr(c):
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50 if bytes == str:
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51 # Python 2.
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52 return chr(c)
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53 else:
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54 # Python 3.
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55 return bytes((c,))
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57
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58 def bord(c):
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59 if bytes == str:
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60 # Python 2.
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61 return ord(c)
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62 else:
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63 # Python 3. Elements of bytes are integers.
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64 return c
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66
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67 # NOTE: PBKDF2 hash is using this variant of base64 to minimize encoding size,
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68 # and have charset that's compatible w/ unix crypt variants
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69 def h64encode(data):
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70 """encode using variant of base64"""
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71 return b2s(b64encode(data, b"./").strip(b"=\n"))
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72
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73
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74 def h64decode(data):
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75 """decode using variant of base64"""
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76 data = s2b(data)
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77 off = len(data) % 4
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78 if off == 0:
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79 return b64decode(data, b"./")
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80 elif off == 1:
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81 raise ValueError("Invalid base64 input")
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82 elif off == 2:
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83 return b64decode(data + b"==", b"./")
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84 else:
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85 return b64decode(data + b"=", b"./")
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86
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87
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88 try:
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89 from hashlib import pbkdf2_hmac
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90
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91 def _pbkdf2(password, salt, rounds, keylen):
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92 return pbkdf2_hmac('sha1', password, salt, rounds, keylen)
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93
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94 def _pbkdf2_sha512(password, salt, rounds, keylen):
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95 return pbkdf2_hmac('sha512', password, salt, rounds, keylen)
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96 except ImportError:
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97 # no hashlib.pbkdf2_hmac - make our own pbkdf2 function
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98 from struct import pack
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99 from hmac import HMAC
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100
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101 def xor_bytes(left, right):
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102 "perform bitwise-xor of two byte-strings"
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103 return _bjoin(bchr(bord(l) ^ bord(r))
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104 for l, r in zip(left, right)) # noqa: E741
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105
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106 def _pbkdf2(password, salt, rounds, keylen, sha=sha1):
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107 if sha not in [sha1, sha512]:
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108 raise ValueError(
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109 "Invalid sha value passed to _pbkdf2: %s" % sha)
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110 if sha == sha512:
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111 digest_size = 64 # sha512 generates 64-byte blocks.
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112 else:
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113 digest_size = 20 # sha1 generates 20-byte blocks
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114
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115 total_blocks = int((keylen+digest_size-1)/digest_size)
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116 hmac_template = HMAC(password, None, sha)
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117 out = _bempty
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118 for i in range(1, total_blocks+1):
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119 hmac = hmac_template.copy()
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120 hmac.update(salt + pack(">L", i))
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121 block = tmp = hmac.digest()
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122 for _j in range(rounds-1):
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123 hmac = hmac_template.copy()
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124 hmac.update(tmp)
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125 tmp = hmac.digest()
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126 # TODO: need to speed up this call
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127 block = xor_bytes(block, tmp)
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128 out += block
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129 return out[:keylen]
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130
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131 def _pbkdf2_sha512(password, salt, rounds, keylen):
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132 return _pbkdf2(password, salt, rounds, keylen, sha=sha512)
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133
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134
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135 def ssha(password, salt):
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136 ''' Make ssha digest from password and salt.
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137 Based on code of Roberto Aguilar <roberto@baremetal.io>
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138 https://gist.github.com/rca/7217540
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139 '''
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140 shaval = sha1(password) # nosec
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141 shaval.update(salt)
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142 ssha_digest = b2s(b64encode(shaval.digest() + salt).strip())
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143 return ssha_digest
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144
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145
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146 def pbkdf2_sha512(password, salt, rounds, keylen):
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147 """PBKDF2-HMAC-SHA512 password-based key derivation
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148
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149 :arg password: passphrase to use to generate key (if unicode,
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150 converted to utf-8)
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151 :arg salt: salt bytes to use when generating key
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152 :param rounds: number of rounds to use to generate key
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153 :arg keylen: number of bytes to generate
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154
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155 If hashlib supports pbkdf2, uses it's implementation as backend.
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156
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157 Unlike pbkdf2, this uses sha512 not sha1 as it's hash.
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158
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159 :returns:
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160 raw bytes of generated key
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161 """
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162 password = s2b(us2s(password))
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163 if keylen > 64:
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164 # This statement may be old. - not seeing issues in testing
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165 # with keylen > 40.
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166 #
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167 # NOTE: pbkdf2 allows up to (2**31-1)*20 bytes,
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168 # but m2crypto has issues on some platforms above 40,
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169 # and such sizes aren't needed for a password hash anyways...
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170 raise ValueError("key length too large")
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171 if rounds < 1:
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172 raise ValueError("rounds must be positive number")
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173 return _pbkdf2_sha512(password, salt, rounds, keylen)
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174
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175 def pbkdf2(password, salt, rounds, keylen):
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176 """pkcs#5 password-based key derivation v2.0
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177
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178 :arg password: passphrase to use to generate key (if unicode,
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179 converted to utf-8)
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180 :arg salt: salt bytes to use when generating key
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181 :param rounds: number of rounds to use to generate key
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182 :arg keylen: number of bytes to generate
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183
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184 If hashlib supports pbkdf2, uses it's implementation as backend.
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185
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186 :returns:
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187 raw bytes of generated key
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188 """
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189 password = s2b(us2s(password))
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190 if keylen > 40:
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191 # NOTE: pbkdf2 allows up to (2**31-1)*20 bytes,
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192 # but m2crypto has issues on some platforms above 40,
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193 # and such sizes aren't needed for a password hash anyways...
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194 raise ValueError("key length too large")
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195 if rounds < 1:
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196 raise ValueError("rounds must be positive number")
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197 return _pbkdf2(password, salt, rounds, keylen)
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198
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199
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200 class PasswordValueError(ValueError):
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201 """ The password value is not valid """
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202 pass
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203
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204
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205 def pbkdf2_unpack(pbkdf2):
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206 """ unpack pbkdf2 encrypted password into parts,
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207 assume it has format "{rounds}${salt}${digest}
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208 """
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209 pbkdf2 = us2s(pbkdf2)
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210 try:
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diff changeset
211 rounds, salt, digest = pbkdf2.split("$")
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diff changeset
212 except ValueError:
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213 raise PasswordValueError("invalid PBKDF2 hash (wrong number of "
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diff changeset
214 "separators)")
4484
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diff changeset
215 if rounds.startswith("0"):
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216 raise PasswordValueError("invalid PBKDF2 hash (zero-padded rounds)")
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217 try:
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218 rounds = int(rounds)
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219 except ValueError:
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220 raise PasswordValueError("invalid PBKDF2 hash (invalid rounds)")
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221 raw_salt = h64decode(salt)
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222 return rounds, salt, raw_salt, digest
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223
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224
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225 def encodePassword(plaintext, scheme, other=None, config=None):
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226 """Encrypt the plaintext password.
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227 """
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228 if plaintext is None:
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229 plaintext = ""
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230 if scheme == "PBKDF2S5": # sha512 variant
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231 if other:
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232 rounds, salt, raw_salt, digest = pbkdf2_unpack(other)
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233 else:
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234 raw_salt = random_.token_bytes(20)
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235 salt = h64encode(raw_salt)
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236 if config:
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237 rounds = config.PASSWORD_PBKDF2_DEFAULT_ROUNDS
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238 else:
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239 rounds = 300000 # sha512 secure with fewer rounds than sha1
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240 if rounds < 1000:
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diff changeset
241 raise PasswordValueError("invalid PBKDF2 hash (rounds too low)")
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242 raw_digest = pbkdf2_sha512(plaintext, raw_salt, rounds, 64)
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243 return "%d$%s$%s" % (rounds, salt, h64encode(raw_digest))
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244 if scheme == "PBKDF2":
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245 if other:
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246 rounds, salt, raw_salt, digest = pbkdf2_unpack(other)
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247 else:
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248 raw_salt = random_.token_bytes(20)
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249 salt = h64encode(raw_salt)
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250 if config:
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251 rounds = config.PASSWORD_PBKDF2_DEFAULT_ROUNDS
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252
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diff changeset
253 # if we are testing
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254 if ("pytest" in sys.modules and
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255 "PYTEST_CURRENT_TEST" in os.environ):
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diff changeset
256 if ("PYTEST_USE_CONFIG" in os.environ):
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257 rounds = config.PASSWORD_PBKDF2_DEFAULT_ROUNDS
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258 else:
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parents: 7177
diff changeset
259 # Use 1000 rounds unless the test signals it
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
260 # wants the config numberby setting
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
261 # PYTEST_USE_CONFIG Using the production 2M
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
262 # round values makes testing increase from 12
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
263 # minutes to 1 hour in CI.
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
264 rounds = 1000
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
265 else:
7167
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
266 if ("pytest" in sys.modules and
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
267 "PYTEST_CURRENT_TEST" in os.environ):
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
268 # Set rounds to 1000 if no config is passed and
7183
2de72f75f2f8 Production PBKDF rounds back to 2M, test 1k; fix empty_form (python2)
John Rouillard <rouilj@ieee.org>
parents: 7177
diff changeset
269 # we are running within a pytest test.
7167
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
270 rounds = 1000
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
271 else:
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
272 import logging
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
273 # Log and abort. Initialize rounds and log (which
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
274 # will probably be ignored) with traceback in case
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
275 # ConfigNotSet exception is removed in the
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
276 # future.
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
277 rounds = 2000000
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
278 logger = logging.getLogger('roundup')
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
279 if sys.version_info[0] > 2:
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
280 logger.critical(
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
281 "encodePassword called without config.",
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
282 stack_info = True)
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
283 else:
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
284 import inspect, traceback
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
285 where = inspect.currentframe()
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
286 trace = traceback.format_stack(where)
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
287 logger.critical(
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
288 "encodePassword called without config. %s",
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
289 trace[:-1]
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
290 )
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
291 raise ConfigNotSet("encodePassword called without config.")
f6b24a8524cd Modify code to reduce runtime when testing
John Rouillard <rouilj@ieee.org>
parents: 7165
diff changeset
292
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
293 if rounds < 1000:
5378
35ea9b1efc14 Python 3 preparation: "raise" syntax.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5356
diff changeset
294 raise PasswordValueError("invalid PBKDF2 hash (rounds too low)")
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
295 raw_digest = pbkdf2(plaintext, raw_salt, rounds, 20)
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
296 return "%d$%s$%s" % (rounds, salt, h64encode(raw_digest))
5053
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
297 elif scheme == 'SSHA':
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
298 if other:
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
299 raw_other = b64decode(other)
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
300 salt = raw_other[20:]
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
301 else:
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
302 # new password
5053
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
303 # variable salt length
5488
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
304 salt_len = random_.randbelow(52-36) + 36
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
305 salt = random_.token_bytes(salt_len)
5454
fbbcbfc6dad0 fix encoding for hash functions
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5428
diff changeset
306 s = ssha(s2b(plaintext), salt)
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
307 elif scheme == 'SHA':
6000
6c3826600610 Bandit - silence old hash warnings.
John Rouillard <rouilj@ieee.org>
parents: 5630
diff changeset
308 s = sha1(s2b(plaintext)).hexdigest() # nosec
2277
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
309 elif scheme == 'MD5':
6000
6c3826600610 Bandit - silence old hash warnings.
John Rouillard <rouilj@ieee.org>
parents: 5630
diff changeset
310 s = md5(s2b(plaintext)).hexdigest() # nosec
6626
120b0bb05b6e issue2551191 - Module deprication PEP 594. crypt
John Rouillard <rouilj@ieee.org>
parents: 6146
diff changeset
311 elif scheme == 'crypt':
120b0bb05b6e issue2551191 - Module deprication PEP 594. crypt
John Rouillard <rouilj@ieee.org>
parents: 6146
diff changeset
312 if crypt is None:
120b0bb05b6e issue2551191 - Module deprication PEP 594. crypt
John Rouillard <rouilj@ieee.org>
parents: 6146
diff changeset
313 raise PasswordValueError(
120b0bb05b6e issue2551191 - Module deprication PEP 594. crypt
John Rouillard <rouilj@ieee.org>
parents: 6146
diff changeset
314 'Unsupported encryption scheme %r' % scheme)
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
315 if other is not None:
3434
1f860b50fa5f encodePassword: don't trim the salt string...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2277
diff changeset
316 salt = other
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
317 else:
5415
2d6a92c3e212 Python 3 preparation: use string.ascii_letters instead of string.letters.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5414
diff changeset
318 saltchars = './0123456789'+string.ascii_letters
5488
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
319 salt = random_.choice(saltchars) + random_.choice(saltchars)
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
320 s = crypt.crypt(plaintext, salt)
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
321 elif scheme == 'plaintext':
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
322 s = plaintext
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
323 else:
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
324 raise PasswordValueError('Unknown encryption scheme %r' % scheme)
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
325 return s
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
326
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
327
4760
efdce3d32698 Increase generated password length to 12 symbols.
anatoly techtonik <techtonik@gmail.com>
parents: 4683
diff changeset
328 def generatePassword(length=12):
5415
2d6a92c3e212 Python 3 preparation: use string.ascii_letters instead of string.letters.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5414
diff changeset
329 chars = string.ascii_letters+string.digits
5488
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
330 password = [random_.choice(chars) for x in range(length - 1)]
4760
efdce3d32698 Increase generated password length to 12 symbols.
anatoly techtonik <techtonik@gmail.com>
parents: 4683
diff changeset
331 # make sure there is at least one digit
5488
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
332 digitidx = random_.randbelow(length)
52cb53eedf77 reworked random number use
Christof Meerwald <cmeerw@cmeerw.org>
parents: 5483
diff changeset
333 password[digitidx:digitidx] = [random_.choice(string.digits)]
4760
efdce3d32698 Increase generated password length to 12 symbols.
anatoly techtonik <techtonik@gmail.com>
parents: 4683
diff changeset
334 return ''.join(password)
1583
caae7d8934dc set new email rego user password to random string
Richard Jones <richard@users.sourceforge.net>
parents: 1343
diff changeset
335
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
336
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
337 class JournalPassword:
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
338 """ Password dummy instance intended for journal operation.
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
339 We do not store passwords in the journal any longer. The dummy
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
340 version only reads the encryption scheme from the given
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
341 encrypted password.
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
342 """
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
343 default_scheme = 'PBKDF2' # new encryptions use this scheme
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
344 pwre = re.compile(r'{(\w+)}(.+)')
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
345
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
346 def __init__(self, encrypted=''):
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
347 if isinstance(encrypted, self.__class__):
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
348 self.scheme = encrypted.scheme or self.default_scheme
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
349 else:
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
350 m = self.pwre.match(encrypted)
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
351 if m:
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
352 self.scheme = m.group(1)
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
353 else:
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
354 self.scheme = self.default_scheme
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
355 self.password = ''
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
356
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
357 def dummystr(self):
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
358 """ return dummy string to store in journal
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
359 - reports scheme, but nothing else
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
360 """
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
361 return "{%s}*encrypted*" % (self.scheme,)
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
362
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
363 __str__ = dummystr
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
364
5414
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
365 def __eq__(self, other):
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
366 """Compare this password against another password."""
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
367 # check to see if we're comparing instances
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
368 if isinstance(other, self.__class__):
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
369 if self.scheme != other.scheme:
5414
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
370 return False
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
371 return self.password == other.password
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
372
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
373 # assume password is plaintext
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
374 if self.password is None:
5378
35ea9b1efc14 Python 3 preparation: "raise" syntax.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5356
diff changeset
375 raise ValueError('Password not set')
5414
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
376 return self.password == encodePassword(other, self.scheme,
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
377 self.password or None)
5414
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
378
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
379 def __ne__(self, other):
3fa026621f69 Python 3 preparation: comparisons.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5391
diff changeset
380 return not self.__eq__(other)
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
381
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
382
4483
22bc0426e348 Second patch from issue2550688 -- with some changes:
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4480
diff changeset
383 class Password(JournalPassword):
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
384 """The class encapsulates a Password property type value in the database.
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
385
2277
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
386 The encoding of the password is one if None, 'SHA', 'MD5' or 'plaintext'.
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
387 The encodePassword function is used to actually encode the password from
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
388 plaintext. The None encoding is used in legacy databases where no
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
389 encoding scheme is identified.
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
390
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
391 The scheme is stored with the encoded data in the database:
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
392 {scheme}data
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
393
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
394 Example usage:
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
395 >>> p = Password('sekrit')
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
396 >>> p == 'sekrit'
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
397 1
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
398 >>> p != 'not sekrit'
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
399 1
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
400 >>> 'sekrit' == p
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
401 1
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
402 >>> 'not sekrit' != p
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
403 1
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
404 """
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
405
4485
95aace124a8e use idea from Eli Collins to use a list of deprecated password encoding schemes
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4484
diff changeset
406 deprecated_schemes = ["SHA", "MD5", "crypt", "plaintext"]
7201
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
407 experimental_schemes = [ "PBKDF2S5" ]
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
408 known_schemes = ["PBKDF2", "SSHA"] + experimental_schemes + \
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
409 deprecated_schemes
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
410
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
411 def __init__(self, plaintext=None, scheme=None, encrypted=None,
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
412 strict=False, config=None):
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
413 """Call setPassword if plaintext is not None."""
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
414 if scheme is None:
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
415 scheme = self.default_scheme
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
416 if plaintext is not None:
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
417 self.setPassword(plaintext, scheme, config=config)
2098
18addf2a8596 Implemented proper datatypes in mysql and postgresql backends...
Richard Jones <richard@users.sourceforge.net>
parents: 2005
diff changeset
418 elif encrypted is not None:
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
419 self.unpack(encrypted, scheme, strict=strict, config=config)
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
420 else:
3439
822a2719b81b keep plaintext password in Password object property (rfe [SF#1379447])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3434
diff changeset
421 self.scheme = self.default_scheme
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
422 self.password = None
3439
822a2719b81b keep plaintext password in Password object property (rfe [SF#1379447])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3434
diff changeset
423 self.plaintext = None
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
424
5630
07abc8d36940 Add etag support to rest interface to prevent multiple users from
John Rouillard <rouilj@ieee.org>
parents: 5490
diff changeset
425 def __repr__(self):
07abc8d36940 Add etag support to rest interface to prevent multiple users from
John Rouillard <rouilj@ieee.org>
parents: 5490
diff changeset
426 return self.__str__()
07abc8d36940 Add etag support to rest interface to prevent multiple users from
John Rouillard <rouilj@ieee.org>
parents: 5490
diff changeset
427
7165
970cd6d2b8ea issue2551251 - migrate pbkdf2 passwords if more rounds configured
John Rouillard <rouilj@ieee.org>
parents: 7163
diff changeset
428 def needs_migration(self, config):
4484
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
429 """ Password has insecure scheme or other insecure parameters
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
430 and needs migration to new password scheme
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
431 """
4485
95aace124a8e use idea from Eli Collins to use a list of deprecated password encoding schemes
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4484
diff changeset
432 if self.scheme in self.deprecated_schemes:
4484
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
433 return True
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
434 rounds, salt, raw_salt, digest = pbkdf2_unpack(self.password)
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
435 if rounds < 1000:
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
436 return True
7165
970cd6d2b8ea issue2551251 - migrate pbkdf2 passwords if more rounds configured
John Rouillard <rouilj@ieee.org>
parents: 7163
diff changeset
437 if (self.scheme == "PBKDF2"):
970cd6d2b8ea issue2551251 - migrate pbkdf2 passwords if more rounds configured
John Rouillard <rouilj@ieee.org>
parents: 7163
diff changeset
438 new_rounds = config.PASSWORD_PBKDF2_DEFAULT_ROUNDS
7184
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
439 if ("pytest" in sys.modules and
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
440 "PYTEST_CURRENT_TEST" in os.environ):
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
441 if ("PYTEST_USE_CONFIG" in os.environ):
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
442 new_rounds = config.PASSWORD_PBKDF2_DEFAULT_ROUNDS
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
443 else:
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
444 # for testing
8b2287d850c8 Fix round check/settings in needs_migration
John Rouillard <rouilj@ieee.org>
parents: 7183
diff changeset
445 new_rounds = 1000
7165
970cd6d2b8ea issue2551251 - migrate pbkdf2 passwords if more rounds configured
John Rouillard <rouilj@ieee.org>
parents: 7163
diff changeset
446 if rounds < int(new_rounds):
970cd6d2b8ea issue2551251 - migrate pbkdf2 passwords if more rounds configured
John Rouillard <rouilj@ieee.org>
parents: 7163
diff changeset
447 return True
4484
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
448 return False
52e13bf0bb40 Add new config-option 'migrate_passwords' in section 'web'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4483
diff changeset
449
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
450 def unpack(self, encrypted, scheme=None, strict=False, config=None):
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
451 """Set the password info from the scheme:<encryted info> string
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
452 (the inverse of __str__)
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
453 """
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
454 m = self.pwre.match(encrypted)
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
455 if m:
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
456 self.scheme = m.group(1)
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
457 self.password = m.group(2)
3439
822a2719b81b keep plaintext password in Password object property (rfe [SF#1379447])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3434
diff changeset
458 self.plaintext = None
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
459 else:
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
460 # currently plaintext - encrypt
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
461 self.setPassword(encrypted, scheme, config=config)
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
462 if strict and self.scheme not in self.known_schemes:
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
463 raise PasswordValueError("Unknown encryption scheme: %r" %
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
464 (self.scheme,))
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
465
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
466 def setPassword(self, plaintext, scheme=None, config=None):
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
467 """Sets encrypts plaintext."""
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
468 if scheme is None:
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
469 scheme = self.default_scheme
3439
822a2719b81b keep plaintext password in Password object property (rfe [SF#1379447])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3434
diff changeset
470 self.scheme = scheme
4486
693c75d56ebe Add new config-option 'password_pbkdf2_default_rounds'...
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4485
diff changeset
471 self.password = encodePassword(plaintext, scheme, config=config)
3439
822a2719b81b keep plaintext password in Password object property (rfe [SF#1379447])
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 3434
diff changeset
472 self.plaintext = plaintext
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
473
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
474 def __str__(self):
4089
eddb82d0964c Add compatibility package to allow us to deal with Python versions 2.3..2.6.
Richard Jones <richard@users.sourceforge.net>
parents: 3439
diff changeset
475 """Stringify the encrypted password for database storage."""
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
476 if self.password is None:
5378
35ea9b1efc14 Python 3 preparation: "raise" syntax.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5356
diff changeset
477 raise ValueError('Password not set')
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
478 return '{%s}%s' % (self.scheme, self.password)
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
479
6981
aa629aebac41 flake8 - import order, spacing
John Rouillard <rouilj@ieee.org>
parents: 6717
diff changeset
480
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
481 def test_missing_crypt(config=None):
6981
aa629aebac41 flake8 - import order, spacing
John Rouillard <rouilj@ieee.org>
parents: 6717
diff changeset
482 p = encodePassword('sekrit', 'crypt') # noqa: F841 - test only
aa629aebac41 flake8 - import order, spacing
John Rouillard <rouilj@ieee.org>
parents: 6717
diff changeset
483
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
484
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
485 def test(config=None):
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
486 # SHA
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
487 p = Password('sekrit', config=config)
6146
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
488 assert Password(encrypted=str(p)) == 'sekrit'
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
489 assert 'sekrit' == Password(encrypted=str(p))
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
490 assert p == 'sekrit'
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
491 assert p != 'not sekrit'
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
492 assert 'sekrit' == p
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
493 assert 'not sekrit' != p
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
494
2277
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
495 # MD5
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
496 p = Password('sekrit', 'MD5', config=config)
6146
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
497 assert Password(encrypted=str(p)) == 'sekrit'
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
498 assert 'sekrit' == Password(encrypted=str(p))
2277
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
499 assert p == 'sekrit'
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
500 assert p != 'not sekrit'
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
501 assert 'sekrit' == p
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
502 assert 'not sekrit' != p
c9e52addda42 added MD5 scheme for password hiding
Richard Jones <richard@users.sourceforge.net>
parents: 2098
diff changeset
503
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
504 # crypt
4683
2f66d44616ad windows: Fix failing password tests due to missing crypt module
anatoly techtonik <techtonik@gmail.com>
parents: 4570
diff changeset
505 if crypt: # not available on Windows
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
506 p = Password('sekrit', 'crypt', config=config)
6146
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
507 assert Password(encrypted=str(p)) == 'sekrit'
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
508 assert 'sekrit' == Password(encrypted=str(p))
4683
2f66d44616ad windows: Fix failing password tests due to missing crypt module
anatoly techtonik <techtonik@gmail.com>
parents: 4570
diff changeset
509 assert p == 'sekrit'
2f66d44616ad windows: Fix failing password tests due to missing crypt module
anatoly techtonik <techtonik@gmail.com>
parents: 4570
diff changeset
510 assert p != 'not sekrit'
2f66d44616ad windows: Fix failing password tests due to missing crypt module
anatoly techtonik <techtonik@gmail.com>
parents: 4570
diff changeset
511 assert 'sekrit' == p
2f66d44616ad windows: Fix failing password tests due to missing crypt module
anatoly techtonik <techtonik@gmail.com>
parents: 4570
diff changeset
512 assert 'not sekrit' != p
1229
5c581b120738 added "crypt" password encoding...
Richard Jones <richard@users.sourceforge.net>
parents: 1090
diff changeset
513
5053
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
514 # SSHA
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
515 p = Password('sekrit', 'SSHA', config=config)
6146
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
516 assert Password(encrypted=str(p)) == 'sekrit'
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
517 assert 'sekrit' == Password(encrypted=str(p))
5053
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
518 assert p == 'sekrit'
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
519 assert p != 'not sekrit'
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
520 assert 'sekrit' == p
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
521 assert 'not sekrit' != p
9792b18e0b19 issue 2550880: Ability to choose password store scheme and SSHA support.
John Rouillard <rouilj@ieee.org>
parents: 4982
diff changeset
522
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
523 # PBKDF2 - low level function
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
524 from binascii import unhexlify
5428
1f1899658115 Python 3 preparation: use bytes more in password handling.
Joseph Myers <jsm@polyomino.org.uk>
parents: 5416
diff changeset
525 k = pbkdf2("password", b"ATHENA.MIT.EDUraeburn", 1200, 32)
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
526 assert k == unhexlify("5c08eb61fdf71e4e4ec3cf6ba1f5512ba7e52ddbc5e5142f708a31e2e62b1e13")
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
527
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
528 # PBKDF2 - hash function
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
529 h = "5000$7BvbBq.EZzz/O0HuwX3iP.nAG3s$g3oPnFFaga2BJaX5PoPRljl4XIE"
7201
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
530 assert encodePassword("sekrit", "PBKDF2", h, config=config) == h
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
531
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
532 # PBKDF2 - high level integration
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
533 p = Password('sekrit', 'PBKDF2', config=config)
6146
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
534 assert Password(encrypted=str(p)) == 'sekrit'
01e9634b81a4 fixed string encoding of SSHA encoded passwords in Python 3
Christof Meerwald <cmeerw@cmeerw.org>
parents: 6007
diff changeset
535 assert 'sekrit' == Password(encrypted=str(p))
4480
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
536 assert p == 'sekrit'
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
537 assert p != 'not sekrit'
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
538 assert 'sekrit' == p
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
539 assert 'not sekrit' != p
1613754d2646 Fix first part of Password handling security issue2550688
Ralf Schlatterbeck <schlatterbeck@users.sourceforge.net>
parents: 4089
diff changeset
540
7201
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
541 # PBKDF2S5 - high level integration
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
542 p = Password('sekrit', 'PBKDF2S5', config=config)
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
543 print(p)
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
544 assert Password(encrypted=str(p)) == 'sekrit'
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
545 assert 'sekrit' == Password(encrypted=str(p))
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
546 assert p == 'sekrit'
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
547 assert p != 'not sekrit'
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
548 assert 'sekrit' == p
da751d3a2138 issue2551253 - Modify password PBKDF2 method to use SHA512
John Rouillard <rouilj@ieee.org>
parents: 7185
diff changeset
549 assert 'not sekrit' != p
6007
e27a240430b8 flake8 formatting changes.
John Rouillard <rouilj@ieee.org>
parents: 6000
diff changeset
550
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
551 if __name__ == '__main__':
7185
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
552 from roundup.configuration import CoreConfig
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
553 test(CoreConfig())
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
554 crypt = None
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
555 exception = None
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
556 try:
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
557 test_missing_crypt(CoreConfig())
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
558 except PasswordValueError as e:
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
559 exception = e
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
560 assert exception != None
8e8d111fcdcd Make in file tests work again. Also allow manual testing without overriding PBKDF rounds
John Rouillard <rouilj@ieee.org>
parents: 7184
diff changeset
561 assert exception.__str__() == "Unsupported encryption scheme 'crypt'"
270
a4241ddd22d7 Added the Password property type.
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
562
3434
1f860b50fa5f encodePassword: don't trim the salt string...
Alexander Smishlajev <a1s@users.sourceforge.net>
parents: 2277
diff changeset
563 # vim: set filetype=python sts=4 sw=4 et si :
Roundup Issue Tracker: http://roundup-tracker.org/