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# Automatically normalize line endings for all text-based files | ||
* text=auto |
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# Coverage report | ||
coverage | ||
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# Installed npm modules | ||
node_modules | ||
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# Folder view configuration files | ||
.DS_Store | ||
Desktop.ini | ||
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# Thumbnail cache files | ||
._* | ||
Thumbs.db | ||
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# Files that might appear on external disks | ||
.Spotlight-V100 | ||
.Trashes |
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language: node_js | ||
node_js: | ||
- "0.10" | ||
before_script: | ||
- "npm install -g grunt-cli" | ||
# Narwhal uses a hardcoded path to openjdk v6, so use that version | ||
- "sudo apt-get update -qq" | ||
- "sudo apt-get install -qq openjdk-6-jre" | ||
- "PACKAGE=rhino1_7R3; wget http://ftp.mozilla.org/pub/mozilla.org/js/$PACKAGE.zip && sudo unzip $PACKAGE -d /opt/ && rm $PACKAGE.zip" | ||
- "PACKAGE=rhino1_7R3; echo -e '#!/bin/sh\\njava -jar /opt/'$PACKAGE'/js.jar $@' | sudo tee /usr/local/bin/rhino && sudo chmod +x /usr/local/bin/rhino" | ||
- "PACKAGE=ringojs-0.9; wget http://ringojs.org/downloads/$PACKAGE.zip && sudo unzip $PACKAGE -d /opt/ && rm $PACKAGE.zip" | ||
- "PACKAGE=ringojs-0.9; sudo ln -s /opt/$PACKAGE/bin/ringo /usr/local/bin/ringo && sudo chmod +x /usr/local/bin/ringo" | ||
- "PACKAGE=v0.3.2; wget https://github.com/280north/narwhal/archive/$PACKAGE.zip && sudo unzip $PACKAGE -d /opt/ && rm $PACKAGE.zip" | ||
- "PACKAGE=narwhal-0.3.2; sudo ln -s /opt/$PACKAGE/bin/narwhal /usr/local/bin/narwhal && sudo chmod +x /usr/local/bin/narwhal" | ||
# If the enviroment stores rt.jar in a different directory, find it and symlink the directory | ||
- "PREFIX=/usr/lib/jvm; if [ ! -d $PREFIX/java-6-openjdk ]; then for d in $PREFIX/java-6-openjdk-*; do if [ -e $d/jre/lib/rt.jar ]; then sudo ln -s $d $PREFIX/java-6-openjdk; break; fi; done; fi" | ||
script: | ||
"grunt ci" |
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module.exports = function(grunt) { | ||
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grunt.initConfig({ | ||
'shell': { | ||
'options': { | ||
'stdout': true, | ||
'stderr': true, | ||
'failOnError': true | ||
}, | ||
'cover': { | ||
'command': 'istanbul cover --report "html" --verbose --dir "coverage" "tests/tests.js"' | ||
}, | ||
'test-narwhal': { | ||
'command': 'echo "Testing in Narwhal..."; export NARWHAL_OPTIMIZATION=-1; narwhal "tests/tests.js"' | ||
}, | ||
'test-phantomjs': { | ||
'command': 'echo "Testing in PhantomJS..."; phantomjs "tests/tests.js"' | ||
}, | ||
// Rhino 1.7R4 has a bug that makes it impossible to test in. | ||
// https://bugzilla.mozilla.org/show_bug.cgi?id=775566 | ||
// To test, use Rhino 1.7R3, or wait (heh) for the 1.7R5 release. | ||
'test-rhino': { | ||
'command': 'echo "Testing in Rhino..."; rhino -opt -1 "tests.js"', | ||
'options': { | ||
'execOptions': { | ||
'cwd': 'tests' | ||
} | ||
} | ||
}, | ||
'test-ringo': { | ||
'command': 'echo "Testing in Ringo..."; ringo -o -1 "tests/tests.js"' | ||
}, | ||
'test-node': { | ||
'command': 'echo "Testing in Node..."; node "tests/tests.js"' | ||
}, | ||
'test-browser': { | ||
'command': 'echo "Testing in a browser..."; open "tests/index.html"' | ||
} | ||
} | ||
}); | ||
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grunt.loadNpmTasks('grunt-shell'); | ||
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grunt.registerTask('cover', 'shell:cover'); | ||
grunt.registerTask('ci', [ | ||
'shell:test-narwhal', | ||
'shell:test-phantomjs', | ||
'shell:test-rhino', | ||
'shell:test-ringo', | ||
'shell:test-node', | ||
]); | ||
grunt.registerTask('test', [ | ||
'ci', | ||
'shell:test-browser' | ||
]); | ||
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grunt.registerTask('default', [ | ||
'shell:test-node' | ||
]); | ||
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}; |
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Copyright Mathias Bynens <http://mathiasbynens.be/> | ||
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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: | ||
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The above copyright notice and this permission notice shall be | ||
included in all copies or substantial portions of the Software. | ||
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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. |
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# bacon-cipher [![Build status](https://travis-ci.org/mathiasbynens/bacon-cipher.svg?branch=master)](https://travis-ci.org/mathiasbynens/bacon-cipher) [![Dependency status](https://gemnasium.com/mathiasbynens/bacon-cipher.svg)](https://gemnasium.com/mathiasbynens/bacon-cipher) | ||
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_bacon-cipher_ is a JavaScript implementation of [Bacon’s cipher, a.k.a. the Baconian cipher](http://en.wikipedia.org/wiki/Bacon's_cipher). It can be used to encode plaintext to Bacon-ciphertext, or the other way around (i.e. decoding). | ||
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By default it uses the most common Bacon cipher alphabet, i.e. `ABCDEFGHIKLMNOPQRSTUWXYZ` (24 letters). This boils down to the following translations: | ||
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``` | ||
a AAAAA g AABBA n ABBAA t BAABA | ||
b AAAAB h AABBB o ABBAB u-v BAABB | ||
c AAABA i-j ABAAA p ABBBA w BABAA | ||
d AAABB k ABAAB q ABBBB x BABAB | ||
e AABAA l ABABA r BAAAA y BABBA | ||
f AABAB m ABABB s BAAAB z BABBB | ||
``` | ||
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## Installation | ||
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Via [npm](http://npmjs.org/): | ||
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```bash | ||
npm install bacon-cipher | ||
``` | ||
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Via [Bower](http://bower.io/): | ||
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```bash | ||
bower install bacon-cipher | ||
``` | ||
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Via [Component](https://github.com/component/component): | ||
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```bash | ||
component install mathiasbynens/bacon-cipher | ||
``` | ||
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In a browser: | ||
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```html | ||
<script src="bacon.js"></script> | ||
``` | ||
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In [Narwhal](http://narwhaljs.org/), [Node.js](http://nodejs.org/), and [RingoJS](http://ringojs.org/): | ||
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```js | ||
var bacon = require('bacon-cipher'); | ||
``` | ||
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In [Rhino](http://www.mozilla.org/rhino/): | ||
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```js | ||
load('bacon.js'); | ||
``` | ||
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Using an AMD loader like [RequireJS](http://requirejs.org/): | ||
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```js | ||
require( | ||
{ | ||
'paths': { | ||
'bacon': 'path/to/bacon' | ||
} | ||
}, | ||
['bacon'], | ||
function(bacon) { | ||
console.log(bacon); | ||
} | ||
); | ||
``` | ||
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## API | ||
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### `bacon.version` | ||
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A string representing the semantic version number. | ||
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### `bacon.encode(text, options)` | ||
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This function takes a string of text (the `text` parameter) and encrypts it using Bacon’s cipher. | ||
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```js | ||
bacon.encode('steganography'); | ||
// → 'BAAABBAABAAABAAAABBAAAAAAABBAAABBABAABBABAAAAAAAAAABBBAAABBBBABBA' | ||
``` | ||
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By default it uses the most common Bacon cipher alphabet, i.e. `ABCDEFGHIKLMNOPQRSTUWXYZ` (24 letters). In this case instances of `J` are replaced with `I`, and instances of `V` are replaced with `U` before further encoding the input string. | ||
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```js | ||
bacon.encode('James Vendetta'); | ||
// → 'ABAAAAAAAAABABBAABAABAAAB BAABBAABAAABBAAAAABBAABAABAABABAABAAAAAA' | ||
``` | ||
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It’s possible to pass an (optional) `options` object with an `alphabet` property to override the cipher alphabet. Note that in that case, no preprocessing (like replacing `j` and `v`) is done. For example, to use the full 26-letter alphabet: | ||
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```js | ||
bacon.encode('James Vendetta', { | ||
'alphabet': 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' | ||
}); | ||
// → 'ABAABAAAAAABBAAAABAABAABA BABABAABAAABBABAAABBAABAABAABBBAABBAAAAA' | ||
``` | ||
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### `bacon.decode(text, options)` | ||
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This function takes a string of text (the `text` parameter) and decrypts it using Bacon’s cipher. | ||
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By default it uses the most common Bacon cipher alphabet, i.e. `ABCDEFGHIKLMNOPQRSTUWXYZ` (24 letters). | ||
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```js | ||
bacon.decode('BAAABBAABAAABAAAABBAAAAAAABBAAABBABAABBABAAAAAAAAAABBBAAABBBBABBA'); | ||
// → 'STEGANOGRAPHY' | ||
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bacon.decode('ABAAAAAAAAABABBAABAABAAAB BAABBAABAAABBAAAAABBAABAABAABABAABAAAAAA'); | ||
// → 'IAMES UENDETTA' | ||
``` | ||
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It’s possible to pass an (optional) `options` object with an `alphabet` property to override the cipher alphabet. For example, to use the full 26-letter alphabet: | ||
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```js | ||
bacon.decode('ABAABAAAAAABBAAAABAABAABA BABABAABAAABBABAAABBAABAABAABBBAABBAAAAA', { | ||
'alphabet': 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' | ||
}); | ||
// → 'JAMES VENDETTA' | ||
``` | ||
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### Using the `bacon` binary | ||
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To use the `bacon` binary in your shell, simply install _bacon-cipher_ globally using npm: | ||
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```bash | ||
npm install -g bacon-cipher | ||
``` | ||
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After that you will be able to use Bacon’s cipher from the command line: | ||
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```bash | ||
$ bacon --encode 'foo bar baz' | ||
AABABABBABABBAB AAAABAAAAABAAAA AAAABAAAAABABBB | ||
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$ bacon --decode 'AABABABBABABBAB AAAABAAAAABAAAA AAAABAAAAABABBB' | ||
FOO BAR BAZ | ||
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$ bacon --encode --alphabet=ABCDEFGHIJKLMNOPQRSTUVWXYZ 'Julius Caesar' | ||
ABAABBABAAABABBABAAABABAABAABA AAABAAAAAAAABAABAABAAAAAABAAAB | ||
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$ bacon --decode --alphabet=ABCDEFGHIJKLMNOPQRSTUVWXYZ 'ABAABBABAAABABBABAAABABAABAABA AAABAAAAAAAABAABAABAAAAAABAAAB' | ||
JULIUS CAESAR | ||
``` | ||
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Read a local text file, encrypt it using Bacon’s cipher with a non-default cipher alphabet, and save the result to a new file: | ||
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```bash | ||
$ bacon --encode < foo.txt > foo-bacon.txt | ||
``` | ||
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Or do the same with an online text file: | ||
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```bash | ||
$ curl -sL 'http://mths.be/brh' | bacon --encode > bacon.txt | ||
``` | ||
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Or, the opposite — read a local file containing Bacon ciphertext, decode it back to plain text, and save the result to a new file: | ||
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```bash | ||
$ bacon --decode < bacon.txt > original.txt | ||
``` | ||
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See `bacon --help` for the full list of options. | ||
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## Support | ||
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_bacon_ is designed to work in at least Node.js v0.10.0, Narwhal 0.3.2, RingoJS 0.8-0.9, PhantomJS 1.9.0, Rhino 1.7RC4, as well as old and modern versions of Chrome, Firefox, Safari, Opera, and Internet Explorer. | ||
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## Unit tests & code coverage | ||
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After cloning this repository, run `npm install` to install the dependencies needed for development and testing. You may want to install Istanbul _globally_ using `npm install istanbul -g`. | ||
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Once that’s done, you can run the unit tests in Node using `npm test` or `node tests/tests.js`. To run the tests in Rhino, Ringo, Narwhal, and web browsers as well, use `grunt test`. | ||
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To generate the code coverage report, use `grunt cover`. | ||
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## Author | ||
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| [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") | | ||
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| [Mathias Bynens](http://mathiasbynens.be/) | | ||
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## License | ||
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_bacon_ is available under the [MIT](http://mths.be/mit) license. |
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