68 lines
2.5 KiB
TypeScript
68 lines
2.5 KiB
TypeScript
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import { ShadeSessionManager } from '../../packages/shade-core/src/index.js';
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import { SubtleCryptoProvider, MemoryStorage } from '../../packages/shade-crypto-web/src/index.js';
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const crypto = new SubtleCryptoProvider();
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async function main() {
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console.log('=== Shade Basic Conversation ===\n');
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// Set up Alice and Bob with separate storage
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const alice = new ShadeSessionManager(crypto, new MemoryStorage());
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const bob = new ShadeSessionManager(crypto, new MemoryStorage());
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await alice.initialize();
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await bob.initialize();
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// Show fingerprints (safety numbers for verification)
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console.log('Alice fingerprint:', await alice.getIdentityFingerprint());
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console.log('Bob fingerprint: ', await bob.getIdentityFingerprint());
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console.log();
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// Bob generates one-time prekeys (would be uploaded to a prekey server)
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const bobOTPKs = await bob.generateOneTimePreKeys(5);
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const bobBundle = await bob.createPreKeyBundle();
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bobBundle.oneTimePreKey = {
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keyId: bobOTPKs[0].keyId,
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publicKey: bobOTPKs[0].keyPair.publicKey,
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};
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// Alice fetches Bob's bundle (here: directly) and starts a session
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await alice.initSessionFromBundle('bob', bobBundle);
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// Alice → Bob
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console.log('→ Alice encrypts: "Hello Bob!"');
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const msg1 = await alice.encrypt('bob', 'Hello Bob!');
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const plain1 = await bob.decrypt('alice', msg1);
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console.log(`← Bob decrypts: "${plain1}"`);
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// Bob → Alice (triggers DH ratchet step)
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console.log('\n→ Bob encrypts: "Hi Alice, got your message"');
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const msg2 = await bob.encrypt('alice', 'Hi Alice, got your message');
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const plain2 = await alice.decrypt('bob', msg2);
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console.log(`← Alice decrypts: "${plain2}"`);
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// Several more turns
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console.log('\n=== Continued conversation (each message has a unique key) ===');
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const conversation = [
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['alice', 'How are you?'],
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['bob', 'Doing well!'],
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['alice', 'Want to grab coffee?'],
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['bob', 'Sure, when?'],
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] as const;
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for (const [from, text] of conversation) {
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const sender = from === 'alice' ? alice : bob;
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const receiver = from === 'alice' ? bob : alice;
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const recvAddr = from === 'alice' ? 'alice' : 'bob';
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const sendAddr = from === 'alice' ? 'bob' : 'alice';
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const env = await sender.encrypt(sendAddr, text);
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const plain = await receiver.decrypt(recvAddr, env);
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console.log(`${from === 'alice' ? 'Alice' : 'Bob '}: "${plain}"`);
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}
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console.log('\n=== Done. Every message used a unique key. ===');
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}
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main().catch(console.error);
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