Merge pull request #29 from yoman07/master

Added possibility to set ACCESSIBLE level for iOS

Author: pradeep1991singh

README.md

@@ -48,10 +48,10 @@ $ react-native link react-native-secure-key-store
 ## Usage
 
 ```javascript
-import RNSecureKeyStore from 'react-native-secure-key-store';
+import RNSecureKeyStore, {ACCESSIBLE} from "react-native-secure-key-store";
 
 // For storing key
-RNSecureKeyStore.set("key1", "value1")
+RNSecureKeyStore.set("key1", "value1", {accessible: ACCESSIBLE.ALWAYS_THIS_DEVICE_ONLY})
 	.then((res) => {
 		console.log(res);
 	}, (err) => {
@@ -76,6 +76,24 @@ RNSecureKeyStore.remove("key1")
 ```
 - For demo app, checkout example directory.
 
+## Options
+
+| Key | Platform | Description | Default |
+|---|---|---|---|
+|**`accessible`**|iOS only|This dictates when a keychain item is accessible, see possible values in `Keychain.ACCESSIBLE`. |*`Keychain.ACCESSIBLE.WHEN_UNLOCKED`*|
+
+### `Keychain.ACCESSIBLE` enum
+
+| Key | Description |
+|-----|-------------|
+|**`WHEN_UNLOCKED`**|The data in the keychain item can be accessed only while the device is unlocked by the user.|
+|**`AFTER_FIRST_UNLOCK`**|The data in the keychain item cannot be accessed after a restart until the device has been unlocked once by the user.|
+|**`ALWAYS`**|The data in the keychain item can always be accessed regardless of whether the device is locked.|
+|**`WHEN_PASSCODE_SET_THIS_DEVICE_ONLY`**|The data in the keychain can only be accessed when the device is unlocked. Only available if a passcode is set on the device. Items with this attribute never migrate to a new device.|
+|**`WHEN_UNLOCKED_THIS_DEVICE_ONLY`**|The data in the keychain item can be accessed only while the device is unlocked by the user. Items with this attribute do not migrate to a new device.|
+|**`AFTER_FIRST_UNLOCK_THIS_DEVICE_ONLY`**|The data in the keychain item cannot be accessed after a restart until the device has been unlocked once by the user. Items with this attribute never migrate to a new device.|
+|**`ALWAYS_THIS_DEVICE_ONLY`**|The data in the keychain item can always be accessed regardless of whether the device is locked. Items with this attribute never migrate to a new device.|
+
 ## Testing
 
 For Testing using Jest, add RNSecureKeyStoreMock implementation under your __test__/__mocks__ folder.

android/src/main/java/com/reactlibrary/securekeystore/RNSecureKeyStoreModule.java

@@ -27,6 +27,8 @@
 import java.security.PrivateKey;
 import java.security.PublicKey;
 import java.util.Calendar;
+import android.support.annotation.Nullable;
+import com.facebook.react.bridge.ReadableMap;
 
 import javax.crypto.Cipher;
 import javax.crypto.CipherInputStream;
@@ -51,7 +53,7 @@ public String getName() {
   }
 
   @ReactMethod
-  public void set(String alias, String input, Promise promise) {
+  public void set(String alias, String input, @Nullable ReadableMap options, Promise promise) {
     try {
       setCipherText(alias, input);
       promise.resolve("stored ciphertext in app storage");

example/app/app.js

@@ -12,19 +12,19 @@ import {
   View
 } from 'react-native';
 
-import RNSecureKeyStore from "react-native-secure-key-store";
+import RNSecureKeyStore, {ACCESSIBLE} from "react-native-secure-key-store";
 
 export default class example extends Component {
   render() {
 
-    RNSecureKeyStore.set("key1", "value1")
+    RNSecureKeyStore.set("key1", "value1", {accessible: ACCESSIBLE.ALWAYS_THIS_DEVICE_ONLY})
       .then((res) => {
         console.log(res);
       }, (err) => {
         console.log(err);
       });
 
-     RNSecureKeyStore.set("key2", "value2")
+     RNSecureKeyStore.set("key2", "value2", {accessible: ACCESSIBLE.ALWAYS_THIS_DEVICE_ONLY})
        .then((res) => {
          console.log(res);
        }, (err) => {