Vue Js Data Encode to base64 with ‘private key’:To encode data to base64 with a private key in Vue.js, you can use the window.crypto.subtle API to generate a secret key, then use that key to encrypt the data with the window.crypto.subtle.encrypt() method. Finally, you can convert the encrypted data to base64 using the btoa() method. This process ensures that the data is protected by a private key that only authorized users have access to, making it more secure than standard base64 encoding.
How can Vue js data be encoded to base64 using a private key?
This Vue.js method encodes a string to base64 using a private key and the AES-GCM encryption algorithm. Here’s how it works:
- The original string and private key are retrieved from the Vue.js component’s data.
- The
TextEncoderobject is used to encode the string as aUint8Arrayobject. - The private key is also encoded as a
Uint8Arrayobject. - The
window.crypto.subtle.importKey()method is used to import the private key as aCryptoKeyobject that can be used for encryption. - The
window.crypto.subtle.deriveKey()method is used to derive an encryption key from the private key using the PBKDF2 algorithm with the given options. The derived key is also aCryptoKeyobject. - The
window.crypto.subtle.encrypt()method is used to encrypt theUint8Arraydata using the derived key and the AES-GCM algorithm with a random IV (initialization vector). - The encrypted data is converted to base64 using the
btoa()function.
Vue Js Data Encode to base64 with ‘private key’ Example
<div id="app">
<p>Original String: {{ originalString }} | Private Key: {{privateKey}}</p>
<p>Encoded String: {{ encodedString }}</p>
</div>
<script type="module">
const app = new Vue({
el: "#app",
data() {
return {
originalString: "hello world",
privateKey: "myPrivateKey",
encodedString: "",
};
},
mounted() {
this.encodeToBase64();
},
methods: {
async encodeToBase64() {
const data = this.originalString;
const privateKey = this.privateKey;
const encoder = new TextEncoder();
const dataUint8 = encoder.encode(data);
const keyUint8 = new TextEncoder().encode(privateKey);
const algorithm = { name: "PBKDF2" };
const derivedKey = await window.crypto.subtle.importKey(
"raw",
keyUint8,
algorithm,
false,
["deriveKey"]
);
const encodedKey = await window.crypto.subtle.deriveKey(
{
name: "PBKDF2",
salt: new Uint8Array([0, 1, 2, 3]),
iterations: 10000,
hash: "SHA-256",
},
derivedKey,
{ name: "AES-GCM", length: 256 },
false,
["encrypt"]
);
const encodedData = await window.crypto.subtle.encrypt(
{ name: "AES-GCM", iv: new Uint8Array(12) },
encodedKey,
dataUint8
);
const base64Encoded = btoa(
String.fromCharCode(...new Uint8Array(encodedData))
);
this.encodedString = base64Encoded;
},
},
})
</script>
Output of Vue Js Encode to base65 with private key
