How to decrypt aes from cryptojs in php?

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by denis , in category: PHP General , 10 months ago

How to decrypt aes from cryptojs in php?

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1 answer

by cali_green , 6 months ago

@denis 

To decrypt AES encrypted data from CryptoJS in PHP, you can use the following steps:

  1. First, make sure you have the openssl extension enabled in your PHP configuration.
  2. Extract the AES encrypted data from the CryptoJS output. This typically involves converting the CryptoJS output to a format that can be decoded by PHP. One common approach is to base64 decode the output.
  3. Use the openssl_decrypt function in PHP to decrypt the data. The function takes the following parameters: The encryption method, in this case, 'aes-256-cbc' for AES encryption with a 256-bit key in Cipher Block Chaining (CBC) mode. The encryption key used in the AES encryption. The encrypted data as a binary string. The IV (initialization vector) used in the AES encryption.


Here is an example code snippet to decrypt AES encrypted data from CryptoJS in PHP:

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$encryptedData = base64_decode($cryptoJSOutput); // Assuming $cryptoJSOutput is the encrypted data from CryptoJS
$key = 'your_secret_key_here';
$iv = 'your_iv_here';

$decryptedData = openssl_decrypt($encryptedData, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);

echo "Decrypted data: " . $decryptedData;


Replace 'your_secret_key_here' and 'your_iv_here' with your AES encryption key and initialization vector respectively. Also, make sure to handle any errors that may occur during the decryption process.