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App.js
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App.js
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import WebviewCrypto from 'react-native-webview-crypto';
import 'react-native-get-random-values';
import React, {useState, useEffect} from 'react';
import {
StyleSheet,
Text,
View,
Button,
AsyncStorage,
TextInput,
} from 'react-native';
import Gun from 'gun/gun';
import SEA from 'gun/sea';
import 'gun/lib/radix.js';
import 'gun/lib/radisk.js';
import 'gun/lib/store.js';
import Store from 'gun/lib/ras.js';
//rad asyncstorage adapter, on Android asyncstorage has 6mb limit by default
const asyncStore = Store({AsyncStorage});
let gun = Gun({
peers: ['https://mvp-gun.herokuapp.com/gun'],
store: asyncStore,
});
const timer = () => {
let current = Date.now();
return () => {
const res = `${(Date.now() - current) / 1000} seconds`;
current = Date.now();
return res;
};
};
export default function App() {
let [state, setState] = useState({
decrypted: '',
pair: '',
random: '',
userCreated: false,
user: '',
});
let [loginStatus, setLoginStatus] = useState({});
let [uname, setUserName] = useState();
let [pass, setPass] = useState();
let [peer, setPeer] = useState('https://mvp-gun.herokuapp.com/gun');
const clearStorage = () => {
AsyncStorage.clear();
};
const restartGun = () => {
gun = Gun({
peers: [peer],
store: asyncStore,
});
};
const runTests = async () => {
try {
console.log('running tests', Gun, crypto);
crypto.subtle
.generateKey(
{
name: 'ECDSA',
namedCurve: 'P-256', //can be "P-256", "P-384", or "P-521"
},
true, //whether the key is extractable (i.e. can be used in exportKey)
['sign', 'verify'], //can be any combination of "sign" and "verify"
)
.then(function(key) {
//returns a keypair object
console.log(key);
console.log(key.publicKey);
console.log(key.privateKey);
})
.catch(function(err) {
console.error(err);
});
await test();
await test2();
await testTypes();
} catch (e) {
console.log('Test failed', e);
}
};
const createUser = () =>
new Promise((resolve, reject) => {
console.log('start login');
gun.user().create(uname, pass, r => {
console.log('Gun user created result:', r);
resolve(true);
//setState(prev => ({...prev, userCreated: 'true'}));
});
});
const authUser = () =>
new Promise((resolve, reject) => {
gun.user().auth(uname, pass, async userres => {
console.log('Gun user auth result:', userres, gun.user().pair());
if (userres.err) {
console.log('[NO LOGIN]');
resolve({user: gun.user().pair(), err: userres.err});
} else {
console.log('[LOGIN OK!!!]');
resolve({user: gun.user().pair()});
}
});
});
const loginUser = async (uname, pass) => {
const getElapsed = timer();
await createUser(uname, pass);
console.log('created', getElapsed());
const res = await authUser(uname, pass);
console.log('authenticated', getElapsed());
setLoginStatus(res);
};
const logout = () => {
gun.user().leave();
setLoginStatus({user: gun.user().pair()});
};
const test = async () => {
const getElapsed = timer();
const array = new Uint8Array(10);
let [random, pair] = await Promise.all([
crypto.getRandomValues(array),
SEA.pair(),
]);
console.log({random, pair}, getElapsed());
setState({random, pair});
let enc = await SEA.encrypt('hello self', pair);
console.log({pair, enc}, getElapsed());
let signed = await SEA.sign(enc, pair);
console.log({signed}, getElapsed());
let verified = await SEA.verify(signed, pair.pub);
console.log({verified}, getElapsed());
let decrypted = await SEA.decrypt(verified, pair);
console.log({decrypted}, getElapsed());
setState(prev => ({...prev, decrypted}));
};
const test2 = async () => {
const getElapsed = timer();
const alice = await SEA.pair();
const bob = await SEA.pair();
console.log({alice, bob}, getElapsed());
console.log('Doing some work');
const check = await SEA.work('hello self', alice);
console.log('Done work', {check}, getElapsed());
const aes = await SEA.secret(bob.epub, alice);
console.log({aes}, getElapsed());
const shared = await SEA.encrypt('shared data', aes);
const aes2 = await SEA.secret(alice.epub, bob);
console.log({shared, aes2}, getElapsed());
const sharedDecrypted = await SEA.decrypt(shared, aes2);
console.log({sharedDecrypted}, getElapsed());
setState(prev => ({...prev, sharedDecrypted}));
};
const testQuickWrong = () => {
return SEA.pair(function(alice) {
SEA.pair(function(bob) {
SEA.sign('asdf', alice, function(data) {
SEA.verify(data, bob.pub, function(msg) {
if (msg !== undefined)
throw new Error('msg should equal undefined');
SEA.verify(data + 1, alice.pub, function(msg) {
if (msg !== undefined)
throw new Error('msg should equal undefined');
SEA.encrypt('secret', alice, function(enc) {
SEA.decrypt(enc, bob, function(dec) {
if (dec !== undefined)
throw new Error('dec should equal undefined');
SEA.decrypt(enc + 1, alice, function(dec) {
if (dec !== undefined)
throw new Error('dec should equal undefined');
});
});
});
});
});
});
});
});
};
const testTypes = () => {
var pair, s, v;
return SEA.pair(function(pair) {
SEA.sign(null, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== null) throw new Error('bad value');
SEA.sign(true, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== true) throw new Error('bad value');
SEA.sign(false, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== false) throw new Error('bad value');
SEA.sign(0, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== 0) throw new Error('bad value');
SEA.sign(1, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== 1) throw new Error('bad value');
SEA.sign(1.01, pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== 1.01) throw new Error('bad value');
SEA.sign('', pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== '') throw new Error('bad value');
SEA.sign('a', pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v !== 'a')
throw new Error('bad value');
SEA.sign([], pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v.length != 0) {
console.log({v});
throw new Error(`bad value ${v}`);
}
SEA.sign([1], pair, function(s) {
SEA.verify(s, pair, function(v) {
if (v[0] != 1)
throw new Error(
`bad value ${v}`,
);
SEA.sign({}, pair, function(s) {
SEA.verify(s, pair, function(
v,
) {
if (typeof v !== 'object')
throw new Error(
`bad value ${v}`,
);
SEA.sign(
{a: 1},
pair,
function(s) {
SEA.verify(
s,
pair,
function(v) {
if (v.a != 1)
throw new Error(
`bad value ${v}`,
);
SEA.sign(
JSON.stringify({
a: 1,
}),
pair,
function(s) {
SEA.verify(
s,
pair,
function(v) {
if (v.a != 1)
throw new Error(
`bad value ${v}`,
);
},
);
},
);
},
);
},
);
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
});
};
return (
<View style={styles.container}>
<WebviewCrypto />
<View style={{flexDirection: 'row'}}>
<Text>change peer:</Text>
<TextInput
onChangeText={setPeer}
value={peer}
style={{borderWidth: 1, width: '50%'}}
/>
</View>
<Button onPress={restartGun} title={'reconnect'} />
<Text>Random: {state.random && state.random.toString()}</Text>
<Text>SEA Pair: {state.pair && JSON.stringify(state.pair)}</Text>
<Text>Decrypted: {state.decrypted && state.decrypted}</Text>
<Text>Shared: {state.sharedDecrypted && state.sharedDecrypted}</Text>
<Button onPress={runTests} title={'Run SEA tests'} />
<View style={{flexDirection: 'row'}}>
<Text>username:</Text>
<TextInput
onChangeText={setUserName}
style={{borderWidth: 1, width: '50%'}}
/>
</View>
<View style={{flexDirection: 'row'}}>
<Text>password:</Text>
<TextInput
onChangeText={setPass}
style={{borderWidth: 1, width: '50%'}}
/>
</View>
<Button onPress={loginUser} title={'login user'} />
<Button onPress={logout} title={'logout user'} />
<Text>Custom User Status: {JSON.stringify(loginStatus)}</Text>
<Button onPress={clearStorage} title={'clear storage'} />
</View>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
alignItems: 'center',
justifyContent: 'center',
},
});