2020-03-27 01:44:31 +05:30
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<style type="text/css">
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pre {
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font-family: monospace;
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display: block;
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white-space: pre;
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font-size: 2em;
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}
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</style>
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</head>
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<body>
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2020-08-26 19:13:08 +05:30
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<script type="text/javascript" src="../lib/olm/olm.js"></script>
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2020-03-27 01:44:31 +05:30
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<script type="module">
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async function main() {
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const Olm = window.Olm;
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await Olm.init({
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2020-08-26 19:13:08 +05:30
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locateFile: () => "../lib/olm/olm.wasm",
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2020-03-27 01:44:31 +05:30
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});
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const alice = new Olm.Account();
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alice.create();
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console.log("alice", alice.identity_keys());
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const bob = new Olm.Account();
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bob.unpickle("secret", "EWfA87or4GgQ+wqVkyuFiW9gUk3FI6QSXgp8E2dS5RFLvXgy4oFvxwQ1gVnbMkdJz2Hy9ex9UmJ/ZyuRU0aRt0IwXpw/SUNq4IQeVJ7J/miXW7rV4Ep+4RSEf945KbDrokDCS2CoL5PIfv/NYyey32gA0hMi8wWIfIlOxFBV4SBJYSC+Qd54VjprwCg0Sn9vjQouKVrM/+5jzsv9+JK5OpWW0Vrb3qrXwyAOEAQ4WlOQcqZHAyPQIw");
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console.log("bob", bob.identity_keys());
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// generate OTK on receiver side
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bob.generate_one_time_keys(1);
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const bobOneTimeKeys = JSON.parse(bob.one_time_keys());
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const bobOneTimeKey = Object.values(bobOneTimeKeys.curve25519)[0];
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// encrypt
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const aliceSession = new Olm.Session();
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aliceSession.create_outbound(
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alice,
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JSON.parse(bob.identity_keys()).curve25519,
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bobOneTimeKey,
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);
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const message = aliceSession.encrypt("hello secret world");
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console.log("message", message);
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// decrypt
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const bobSession = new Olm.Session();
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bobSession.create_inbound(bob, message.body);
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const plaintext = bobSession.decrypt(message.type, message.body);
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console.log("plaintext", plaintext);
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// remove Bob's OTK as it was used to start an olm session
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console.log("bob OTK before removing", bob.one_time_keys());
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bob.remove_one_time_keys(bobSession);
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console.log("bob OTK after removing", bob.one_time_keys());
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}
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main();
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</script>
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</body>
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</html>
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