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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -18,6 +18,34 @@ python3 random_password_generator.py - `kJDCoAU39Ueuebf5WMQw` - `xeWeq8o4sHd63qjTogx9` ## License ```license MIT License Copyright (c) 2020 davidhcefx 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. ``` ## Code ```py @@ -88,4 +116,4 @@ for i in urandom(length): passwd.append(charset[i % len(charset)]) print('\n> Here is your generated password: ', ''.join(passwd)) ``` -
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davidhcefx revised this gist
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davidhcefx revised this gist
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,91 @@ # Offline Random Password Generator There are plenty of *ONLINE* websites that claimed to be generating your password *OFFLINE*. This sounds quite absurd to me, as there are no way to tell if they are collecting your data or not, unless you look into their Javascript code or something. At the end of the day, generating one's password using someone else's website just doesn't make sense. Therefore, this code is meant to be run locally and is easy to understand, which is essential to provide confidence that it is safe. ## Usage ```sh python3 random_password_generator.py ``` ## Examples - `Y?otqi3h8$DA9M-&=TWb` - `ixjF~_!$Vu*qE&49io#*` - `#B*dzjcDv$ezzD!mcR?U` - `bvV9NseA9naxA7YodQBF` - `kJDCoAU39Ueuebf5WMQw` - `xeWeq8o4sHd63qjTogx9` ## Code ```py from os import urandom from random import shuffle # Written by davidhcefx, 2020.3.16. print('===============================================================================') print('|| Offline Random Password Generator ||') print('===============================================================================') print('') ln = input('> Password Length: (strong: >= 16) ').strip() length = 16 if ln == '' else int(ln) print('length = %d\n' % length) print('Choose Character Set: [default = 12345]') print('[1] Lowercase + Uppercase') print('[2] Digits') print('[3] Symbols') print('[4] EXCLUDE Similar Characters: I l 1 O 0') print('[5] EXCLUDE Ambiguous Characters: {}[]()<>/\\\'\"`;:,.') choice = input('> ').strip() if choice == '': choice = '12345' charset = [] exclude_alnum = '' exclude_symbol = '' # Exclude similar if '4' in choice: exclude_alnum = 'Il1O0' # Exclude ambiguous if '5' in choice: exclude_symbol = '{}[]()<>/\\\'\"`;:,.' # Lower + Upper if '1' in choice: alpha = [chr(i) for i in range(ord('a'), ord('z') + 1)] \ + [chr(i) for i in range(ord('A'), ord('Z') + 1)] for a in alpha: if a not in exclude_alnum: charset.append(a) # Digits if '2' in choice: for i in range(ord('0'), ord('9') + 1): if chr(i) not in exclude_alnum: charset.append(chr(i)) # Symbols if '3' in choice: all_symbols = [chr(i) for i in range(0x21, 0x2f + 1)] \ + [chr(i) for i in range(0x3a, 0x40 + 1)] \ + [chr(i) for i in range(0x5b, 0x60 + 1)] \ + [chr(i) for i in range(0x7b, 0x7e + 1)] for s in all_symbols: if s not in exclude_symbol: charset.append(s) print('charset:', ''.join(charset)) shuffle(charset) # mitigate the probability bias in [0,255] % len(charset) passwd = [] for i in urandom(length): passwd.append(charset[i % len(charset)]) print('\n> Here is your generated password: ', ''.join(passwd)) ```