react-native-keypair-lib

Getting started

$ npm install react-native-keypair-lib --save

$3

$ react-native link react-native-keypair-lib

Usage (Android)

Make alterations to the following files:

* android/settings.gradle

``gradle
...
include ':react-native-keypair-lib'
project(':react-native-keypair-lib').projectDir = new File(settingsDir, '../node_modules/react-native-keypair-lib/android')
`

* android/app/build.gradle

`gradle
...
dependencies {
...
implementation project(':react-native-keypair-lib')
}
`

* register module (in MainActivity.java)

* For react-native below 0.19.0 (use cat ./node_modules/react-native/package.json | grep version)

`java
import com.reactlibrary.ReactNativeKeypairLibPackage; // <--- import

public class MainActivity extends Activity implements DefaultHardwareBackBtnHandler {

......

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mReactRootView = new ReactRootView(this);

mReactInstanceManager = ReactInstanceManager.builder()
.setApplication(getApplication())
.setBundleAssetName("index.android.bundle")
.setJSMainModuleName("index.android")
.addPackage(new MainReactPackage())
.addPackage(new ReactNativeKeypairLibPackage()) // <------- add package
.setUseDeveloperSupport(BuildConfig.DEBUG)
.setInitialLifecycleState(LifecycleState.RESUMED)
.build();

mReactRootView.startReactApplication(mReactInstanceManager, "ExampleRN", null);

setContentView(mReactRootView);
}

......

}
`

* For react-native 0.19.0 and higher
`java
import com.reactlibrary.ReactNativeKeypairLibPackage; // <------- add package

public class MainActivity extends ReactActivity {
// ...
@Override
protected List getPackages() {
return Arrays.asList(
new MainReactPackage(), // <---- add comma
new ReactNativeKeypairLibPackage() // <---------- add package
);
}
`

* For react-native 0.29.0 and higher ( in MainApplication.java )
`java
import com.reactlibrary.ReactNativeKeypairLibPackage; // <------- add package

public class MainApplication extends Application implements ReactApplication {
// ...
@Override
protected List getPackages() {
return Arrays.asList(
new MainReactPackage(), // <---- add comma
new ReactNativeKeypairLibPackage() // <---------- add package
);
}
`

Usage

`javascript
import { sanitizeAnswers } from 'react-native-keypair-lib';

const answers = {
question1: "L'Aquila",
question2: "C arl",
question3: "88 ggg",
question4: "null",
question5: "null",
};

sanitizeAnswers(answers);
`
outcome:

`json
{
"question1": "laquila",
"question2": "carl",
"question3": "88ggg",
"question4": "null",
"question5": "null",
}
`

`javascript
import { recoveryKeypair } from 'react-native-keypair-lib';

const answers = {
question1: "Paris",
question2: "ScoobyDoo",
question3: "Amsterdam",
question4: "null",
question5: "null",
};
const PBKDF = "qf3skXnPGFMrE28UJS7S8BdT8g==";
const username = "user";

const data = await recoveryKeypair(contractClientSide, answers, PBKDF);
`
outcome:

`json
{
"hashedAnswers": {
"question1.hash": "XdJytPMWt3anuOPQiUs34eQr49XTsgS4pYNsxQWXprE=",
"question2.hash": "2hauYmg/8TGnG5IeCTzlFKHvw1XpxbKaMdmEUbUNQ2c=",
"question3.hash": "ABPAH+DQlCCbi9PSO4+W26vNAd3SoDnuuoLRiRrPDWE=",
"question4.hash": "dCNOmK/nSY+12vHzasLXiswzlGT5UHA7jAGYkvmCuQs=",
"question5.hash": "dCNOmK/nSY+12vHzasLXiswzlGT5UHA7jAGYkvmCuQs=",
},
"user": {
"keypair": {
"private_key": "VUVdIyPeC+x3o66b+n06Jxc4c3p9TBFfaSiaEPx5FmI=",
"public_key":
"BDYfET6GOWSTizMYIRfcthw2MKksTpg+f8LR0ndq6fRxOLfhT7d1IjvwkvV0LzlzHuGat8SF9unNwhA3alpQ8So=",
},
},
}
`

`ts
import {verifyAnswers } from 'react-native-keypair-lib';

const answers = {
question1: "Paris",
question2: "ScoobyDoo",
question3: "Amsterdam",
question4: "null",
question5: "null",
};
const PBKDF = "qf3skXnPGFMrE28UJS7S8BdT8g==";
const publicKey =
"BDYfET6GOWSTizMYIRfcthw2MKksTpg+f8LR0ndq6fRxOLfhT7d1IjvwkvV0LzlzHuGat8SF9unNwhA3alpQ8So=";
const username = "user";

const data = await verifyAnswers(contractClientSide, answers, PBKDF, publicKey);
`
outcome:

`json
true
``