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Updated on 2025-03-03

Use of 6 commonly used data encryption methods for vue

In a project, you may need to perform data encryption to ensure the security of sensitive information. Although data encryption is not provided by itself, you can use the JavaScript library to achieve this. Here are six commonly used data encryption methods and their usage methods:

1. Base64 encoding:

Base64 is not a real encryption method, but it is a way of encoding, but it can be used to simply hide data on the front end. usebtoa()andatob()Functions are encoded and decoded.

advantage:Simple and easy to use, built into most programming languages ​​and browsers.
No external libraries are required.

shortcoming:Low security and is not suitable for encryption of sensitive information. It is just a encoding method that can be easily decoded.
Not applicable to encrypt passwords or protect confidential data.

import Vue from 'vue';

.$base64Encode = function(data) {
  return btoa(data);
};

.$base64Decode = function(encodedData) {
  return atob(encodedData);
};

2. MD5 hash:

MD5 is a widely used hashing algorithm that can be used to generate unique hashings, although it is no longer considered secure for scenarios such as password storage. You can usejs-md5library.

advantage:Generates a fixed-length hash value, which is widely used to generate summary of files or data.
There are many ready-made libraries available.

shortcoming:Known vulnerabilities make them vulnerable to collision attacks and are no longer suitable for security-sensitive applications.
Not suitable for use as password storage, as it cannot prevent rainbow table attacks.

Install:npm install js-md5 --save

use:

import md5 from 'js-md5';

.$md5Hash = function(data) {
  return md5(data);
};

3. SHA-256 hash:

SHA-256 is a more secure hashing algorithm commonly used for password storage and digital signatures. You can usecrypto-jslibrary.

advantage:It is a secure hashing algorithm widely used in password storage and digital signatures.
Generate a hash value that is fixed-length and difficult to reverse.

shortcoming:Although it is difficult to reverse, it is still only one-way operation, not suitable for data encryption, and only suitable for data integrity verification.
Like MD5, it cannot prevent rainbow table attacks and needs to be used in combination with salt value.

Install:npm install crypto-js --save

use:

import CryptoJS from 'crypto-js';

.$sha256Hash = function(data) {
  return CryptoJS.SHA256(data).toString();
};

4. AES encryption:

AES is a symmetric encryption algorithm that is widely used in data encryption. You can usecrypto-jsLibrary to implement AES encryption and decryption.

advantage:Symmetric encryption algorithm, fast encryption and decryption speed, is suitable for encryption of large amounts of data.
A variety of key length options are available that can be adjusted according to security requirements.

shortcoming:The distribution and management of keys require additional considerations, and if the key is leaked, the security of the data can be compromised.
Relying on the implementation of JavaScript libraries, it is necessary to ensure the security and stability of the libraries.

Use (continued with the above code):

.$aesEncrypt = function(data, secretKey) {
  return (data, secretKey).toString();
};

.$aesDecrypt = function(ciphertext, secretKey) {
  const bytes = (ciphertext, secretKey);
  return (.Utf8);
};

5. RSA encryption:

RSA is an asymmetric encryption algorithm that is commonly used to securely transmit keys or digital signatures. Using RSA encryption on the browser side is not very common because of performance issues, but you can usejsencryptlibrary to implement.

advantage:Asymmetric encryption algorithm, private keys do not need to be transmitted on the network, and are highly secure.
Commonly used for digital signatures and key exchange.

shortcoming:Encryption and decryption are slower, not suitable for encrypting large amounts of data, and are more suitable for encrypting keys or small amounts of sensitive data.
It is necessary to ensure the security of the public and private keys. If the private key is leaked, the entire encryption system will be destroyed.
Relying on JavaScript libraries, performance may be limited by the client's computing power

Install:npm install jsencrypt --save

use:

import JSEncrypt from 'jsencrypt';

.$rsaEncrypt = function(data, publicKey) {
  const encrypt = new JSEncrypt();
  (publicKey);
  return (data);
};

Note: RSA decryption is usually done on the server side, because the private key should not be exposed to the client.

6. Use the Web Crypto API:

Modern browsers provide the Web Crypto API, allowing you to perform various encryption operations without relying on external libraries. You can useThe API performs encryption, decryption, signature and verification operations. However, be aware of the asynchronous nature of this API and browser compatibility.

advantage:Provides native browser encryption support without the need for additional JavaScript libraries.
It provides support for a variety of encryption algorithms and operations, including symmetric encryption, asymmetric encryption and digital signatures.
Using a browser's native implementation may be safer and more efficient.

shortcoming:Browser compatibility issues need to be considered, especially in some older or less common browsers.
The API is asynchronous and requires the correct handling of asynchronous operations, which increases the development complexity.
A certain understanding of encryption principles and security policies is required to avoid misuse or incorrect implementation.

Example of usage (AES-GCM encryption):

async function encryptData(data, key) {
  const encoded = new TextEncoder().encode(data);
  const iv = (new Uint8Array(12));
  const ciphertext = await (
    {
      name: "AES-GCM",
      iv: iv
    },
    key,
    encoded
  );
  return { ciphertext, iv };
}

When used in Vue, you may need to create a method to handle the asynchronous encryption process and call it if needed. Due to the complexity of the Web Crypto API, it is often recommended for developers familiar with the concept of encryption to use it.

Remember that encryption is a complex field and the incorrect use of encryption algorithms can lead to security vulnerabilities. Always make sure you understand the details and limitations of the encryption method you are using and consider consulting a security expert to make sure your implementation is secure.

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