Need PHP version of this encoding.

[rajeshjnair]

Can you please share the PHP version of the same encrypt and decrypt function, thus we can achieve the same process API vice-versa. We wrote the function it didn't get any chance to work

[leocavalcante]

Can you share the function you wrote? Is it giving any errors?

[rajeshjnair]

`<?php
// DEFINE our cipher
define('AES_256_CBC', 'aes-256-cbc');
define('AES_128_CBC', 'aes-128-cbc');
// Generate a 256-bit encryption key
// This should be stored somewhere instead of recreating it each time
$encryption_key = openssl_random_pseudo_bytes(openssl_cipher_iv_length(AES_256_CBC));

// Generate an initialization vector
// This MUST be available for decryption as well
$iv = openssl_random_pseudo_bytes(openssl_cipher_iv_length(AES_128_CBC));
// Create some data to encrypt
$data = pkcs7pad("Encrypt me, please!",16);

// Encrypt $data using aes-256-cbc cipher with the given encryption key and
// our initialization vector. The 0 gives us the default options, but can
// be changed to OPENSSL_RAW_DATA or OPENSSL_ZERO_PADDING
$encrypted = openssl_encrypt($data, AES_256_CBC, $encryption_key, 0, $iv);

echo "Key: ".base64_encode($encryption_key).PHP_EOL;

echo "IV: ".base64_encode($iv).PHP_EOL;

echo "Encrypted: $encrypted\n";
?>`

[rajeshjnair]

`<?php
// DEFINE our cipher
define('AES_256_CBC', 'aes-256-cbc');
define('AES_128_CBC', 'aes-128-cbc');

$encryption_key = 'rKnJQAMdfHa4jl+INHKi+w==';

$iv = 'YxSYgDGcVWzICnHLnCkXaw==';

$encrypted = "scLHHCHeDD4Oe6raVSLaD375c/4jLSAp/aaTgKLJgFaemTwDyKHMJIIFbUcYJfcS";

// These three value generated from the encrypt code.

//print_r($parts);
// $parts[0] = encrypted data
// $parts[1] = base-64 encoded initialization vector
// Don't forget to base64-decode the $iv before feeding it back to
//openssl_decrypt
$decrypted = openssl_decrypt($encrypted, AES_256_CBC, base64_decode($encryption_key), 0, base64_decode($iv));
echo "Decrypted: $decrypted\n";
?>`

[leocavalcante]

Take a look at this 4 working and fully interoperable encryption snippets and adapt to your needs:

Dart encrypt

import 'package:encrypt/encrypt.dart';

const encodedKey = 'FCAcEA0HBAoRGyALBQIeCAcaDxYWEQQPBxcXHgAFDgY=';
const encodedIv = 'DB4gHxkcBQkKCxoRGBkaFA==';

void main(List<String> args) {
 final key = Key.fromBase64(encodedKey);
 final iv = IV.fromBase64(encodedIv);
 final encrypter = Encrypter(AES(key, mode: AESMode.cbc));
 final encrypted = encrypter.encrypt(args[0], iv: iv);

 print(encrypted.base64);
}

PHP decrypt

<?php declare(strict_types=1);

const encodedKey = 'FCAcEA0HBAoRGyALBQIeCAcaDxYWEQQPBxcXHgAFDgY=';
const encodedIv = 'DB4gHxkcBQkKCxoRGBkaFA==';

function main(array $args) {
  $key = base64_decode(encodedKey);
  $iv = base64_decode(encodedIv);
  $encrypter = 'aes-256-cbc';
  $decrypted = openssl_decrypt($args[0], $encrypter, $key, 0, $iv);

  echo $decrypted;
};

main(array_slice($argv, 1));

Dart decrypt

import 'package:encrypt/encrypt.dart';

const encodedKey = 'FCAcEA0HBAoRGyALBQIeCAcaDxYWEQQPBxcXHgAFDgY=';
const encodedIv = 'DB4gHxkcBQkKCxoRGBkaFA==';

void main(List<String> args) {
  final key = Key.fromBase64(encodedKey);
  final iv = IV.fromBase64(encodedIv);
  final encrypter = Encrypter(AES(key, mode: AESMode.cbc));
  final decrypted = encrypter.decrypt(Encrypted.fromBase64(args[0]), iv: iv);

  print(decrypted);
}

PHP encrypt

<?php declare(strict_types=1);

const encodedKey = 'FCAcEA0HBAoRGyALBQIeCAcaDxYWEQQPBxcXHgAFDgY=';
const encodedIv = 'DB4gHxkcBQkKCxoRGBkaFA==';

function main(array $args) {
  $key = base64_decode(encodedKey);
  $iv = base64_decode(encodedIv);
  $encrypter = 'aes-256-cbc';
  $encrypted = openssl_encrypt($args[0], $encrypter, $key, 0, $iv);

  echo $encrypted;
};

main(array_slice($argv, 1));

[leocavalcante]

Closed due inactivity.