PHP and CryptoJS AES encryption and decryption communication

PHP and CryptoJS AES encryption and decryption communication

use

import * as CryptoJS from 'crypto-js'

/** * AES encryption *@param Plaintext expressly *@param Key Encryption key *@param Iv offset *@returns Cipher * /
export const AESencrypt = (plaintext, key, iv) = > {
  key = CryptoJS.enc.Utf8.parse(key)
  iv = CryptoJS.enc.Utf8.parse(iv)
  const encryptedData = CryptoJS.AES.encrypt(plaintext, key, {
    iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
  })
  return encryptedData.toString()
}

/** * AES decryption *@param Ciphertext ciphertext *@param Key Encryption key *@param Iv offset *@returns Clear * /
export const AESdecrypt = (ciphertext, key, iv) = > {
  key = CryptoJS.enc.Utf8.parse(key)
  iv = CryptoJS.enc.Utf8.parse(iv)
  const decryptedData = CryptoJS.AES.decrypt(ciphertext, key, {
    iv,
    padding: CryptoJS.pad.Pkcs7
  })
  return decryptedData.toString(CryptoJS.enc.Utf8)
}
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class AESHelper
{
  public static function encrypt($data.$key.$iv)
  {
    return base64_encode(openssl_encrypt($data.'AES-128-CBC'.$key.1.$iv));
  }
  public static function decrypt($data.$key.$iv)
  {
    return openssl_decrypt(base64_decode($data), 'AES-128-CBC'.$key.1.$iv); }}Copy the code

Q&A

• CryptoJSYou do not need to set the mode for decryption
• Decryption failed,Error: Malformed UTF-8 data
• Decryption failed, the result is empty string or garbled characters

Check the method

• The mode is not set correctly
• Padding Settings are incorrect
• key 和 ivIs not correct
• key 和 ivUntreated,const key = CryptoJS.enc.Utf8.parse(key)

// 'key' and 'iv' are correctly processed. Plaintext and ciphertext are not required
const key = CryptoJS.enc.Utf8.parse(key)
const iv = CryptoJS.enc.Utf8.parse(iv)
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CryptoJS supports AES-128, AES-192, and AES-256. It will pick the variant by the size of the key you pass in. If you use a passphrase, then it will generate a 256-bit key

Cryptojs-standard library for JavaScript encryption and decryption

brix/crypto-js

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