Use nodejs-mobile and bcrypt to generate encryption key, and encrypt db

nodejs-assets/nodejs-project/main.js

@@ -0,0 +1,17 @@
+const rnBridge = require('rn-bridge')
+try {
+  const bcryptjs = require('bcryptjs')
+
+  rnBridge.channel.on('message', (msg) => {
+    msg = JSON.parse(msg)
+    if (msg.type === 'request-hash') {
+      const hash = bcryptjs.hashSync(msg.message, 10)
+      rnBridge.channel.send(JSON.stringify({
+        type: 'hash',
+        message: hash
+      }))
+    }
+  })
+} catch (err) {
+  rnBridge.channel.send(JSON.stringify(err.message))
+}

nodejs-assets/nodejs-project/package-lock.json

@@ -0,0 +1,11 @@
+{
+  "requires": true,
+  "lockfileVersion": 1,
+  "dependencies": {
+    "bcryptjs": {
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/bcryptjs/-/bcryptjs-2.4.3.tgz",
+      "integrity": "sha1-mrVie5PmBiH/fNrF2pczAn3x0Ms="
+    }
+  }
+}

nodejs-assets/nodejs-project/package.json

@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "bcryptjs": "^2.4.3"
+  },
+  "main": "main.js"
+}