├── password-generator
├── README.md
└── LICENSE


/password-generator:
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 1 | #!/bin/bash
 2 | 
 3 | hash() {
 4 |   local seed="${1}"
 5 |   local hash="$(
 6 |       tr -d '[:space:]' <<<"${seed}" | \
 7 |       openssl md5 -binary | \
 8 |       base64 | \
 9 |       tr -d -c '[:alnum:]')"
10 |   echo "${hash:0:8}"
11 | }
12 | 
13 | while :; do
14 |   read -sp 'Master password: ' password
15 |   echo
16 |   read -p "Password hash is $(hash "${password}"). Right? [Y/n] " yesno
17 |   case "${yesno}" in
18 |     [Nn]*) continue;;
19 |     *) break;;
20 |   esac
21 | done
22 | 
23 | read -p 'Domain: ' domain
24 | domain="$(echo "${domain}" | tr '[A-Z]' '[a-z]')"
25 | seed="${password}@${domain}"
26 | 
27 | password="$(hash ${seed})"
28 | if [ "${SSH_TTY+set}" == '' ]; then
29 |   if which pbcopy >/dev/null 2>/dev/null; then
30 |     echo -n "${password}" | pbcopy
31 |     echo 'Password was copied to your clipboard.'
32 |     exit 0
33 |   fi
34 | fi
35 | 
36 | echo "${password}"
37 | 


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/README.md:
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 1 | Introduction
 2 | ============
 3 | 
 4 | password-generator is a command-line tool to use a different password for every site.
 5 | 
 6 | * Web version - http://imoz.jp/password.html
 7 | 
 8 | Usage
 9 | =====
10 | 
11 | ```sh
12 | $ password-generator 
13 | Master password: ← Type your master password here
14 | Password hash is 6nAeqHv2. Right? [Y/n] ← Press Enter key if it is correct.
15 | Domain: github.com ← Type a domain in lower case.
16 | Password was copied to your clipboard.
17 | ```
18 | 
19 | FAQ
20 | ===
21 | 
22 | What is Password Hash?
23 | ----------------------
24 | 
25 | Password hash is a fingerprint of your master password.
26 | Your master password is hidden in typing, so it is difficult to know if your password is correct, but the password hash should be a hint.
27 | 
28 | How Password is Generated?
29 | --------------------------
30 | 
31 | The method to generate a password can be written in PHP like this:
32 | 
33 | ```php
34 | base64_encode(hex2bin(md5(password + "@" + domain)))
35 | ```
36 | 


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/LICENSE:
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 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2014 Kentaro IMAJO
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 


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