Add a way to generate any-length pad
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index.html
44
index.html
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@ -20,7 +20,40 @@
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<div class="section">
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<div class="section">
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<div class="container">
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<div class="container">
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<div class="columns">
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<div class="columns">
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<div class="column">
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<div class="column is-one-third">
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<h2 class="title">
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Generate a One-Time Pad
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</h2>
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<div class="field has-addons">
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<div class="control">
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<input class="input" type="number" id="padLength" placeholder="Length">
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</div>
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<div class="control">
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<a class="button" id="generatePad">
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<span>
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Generate Pad
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</span>
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<span class="icon">
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<i class="fa fa-lock"></i>
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</span>
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</a>
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</div>
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</div>
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<div class="columns">
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<div class="column">
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<label class="label">One-Time Pad</label>
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<div class="box">
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<pre id="generatedPad"></pre>
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</div>
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</div>
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</div>
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</div>
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<div class="column is-one-third">
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<h2 class="title">
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Encrypt a Message
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</h2>
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<div class="field">
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<div class="field">
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<label class="label">
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<label class="label">
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Your Message
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Your Message
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@ -55,13 +88,16 @@
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<div class="column">
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<div class="column">
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<label class="label">Encrypted Message</label>
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<label class="label">Encrypted Message</label>
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<div class="box">
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<div class="box">
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<pre id="encrypted"></pre>
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<pre id="encrypted" style="width:100%;line-break"></pre>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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<div class="column">
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<div class="column is-one-third">
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<h2 class="title">
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Encrypt a Message
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</h2>
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<div class="field">
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<div class="field">
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<label class="label">
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<label class="label">
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Their Message
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Their Message
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@ -96,7 +132,7 @@
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<div class="column">
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<div class="column">
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<label class="label">Decrypted Message</label>
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<label class="label">Decrypted Message</label>
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<div class="box">
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<div class="box">
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<pre id="decrypted"></pre>
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<pre id="decrypted" style="width:100%;line-break"></pre>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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50
index.js
50
index.js
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@ -5,7 +5,7 @@ const CHARS = [
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'&', '$',
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'&', '$',
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];
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];
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const generatePad = (length) => {
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export const generatePad = (length) => {
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const pad = [];
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const pad = [];
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for (let i = 0; i < length; i++) {
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for (let i = 0; i < length; i++) {
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const letter = Math.floor(Math.random() * CHARS.length);
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const letter = Math.floor(Math.random() * CHARS.length);
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@ -41,25 +41,33 @@ export const decrypt = (string, pad) => {
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}).join('').replace(/\&/g, ' ').replace(/\$/g, '-');
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}).join('').replace(/\&/g, ' ').replace(/\$/g, '-');
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}
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}
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document.getElementById('encryptInput').onclick = () => {
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window.onload = () => {
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const error = document.getElementById('inputError');
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document.getElementById('encryptInput').onclick = () => {
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const input = document.getElementById('input').value;
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const error = document.getElementById('inputError');
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const inputPad = stripString(document.getElementById('inputPad').value).toUpperCase();
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const input = document.getElementById('input').value;
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const pad = inputPad !== '' ? inputPad.split('') : null;
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const inputPad = stripString(document.getElementById('inputPad').value).toUpperCase();
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if (pad !== null && pad.length < input.length) {
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const pad = inputPad !== '' ? inputPad.split('') : null;
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document.getElementById('inputPad').value = pad.join('');
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if (pad !== null && pad.length < input.length) {
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error.innerHTML = 'The pad must be at least as long as the input';
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document.getElementById('inputPad').value = pad.join('');
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} else {
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error.innerHTML = 'The pad must be at least as long as the input';
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error.innerHTML = '';
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} else {
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const encryption = encrypt(input, pad);
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error.innerHTML = '';
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document.getElementById('inputPad').value = encryption.oneTimePad.join('');
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const encryption = encrypt(input, pad);
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document.getElementById('encrypted').innerHTML = encryption.encryptedMessage;
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document.getElementById('inputPad').value = encryption.oneTimePad.join('');
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document.getElementById('encrypted').innerHTML = encryption.encryptedMessage;
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}
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}
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document.getElementById('decryptInput').onclick = () => {
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const input = document.getElementById('encryptedInput').value;
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const pad = document.getElementById('encryptedInputPad').value.split('');
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const output = decrypt(input, pad);
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document.getElementById('decrypted').innerHTML = output;
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}
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document.getElementById('generatePad').onclick = () => {
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const input = parseInt(document.getElementById('padLength').value, 10);
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const output = generatePad(input);
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document.getElementById('generatedPad').innerHTML = output.join('');
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}
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}
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}
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}
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document.getElementById('decryptInput').onclick = () => {
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const input = document.getElementById('encryptedInput').value;
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const pad = document.getElementById('encryptedInputPad').value.split('');
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const output = decrypt(input, pad);
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document.getElementById('decrypted').innerHTML = output;
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}
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