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Answers for "encrypt and decrypt string in php"

PHP
8

encrypt decrypt php

function encrypt_decrypt($string, $action = 'encrypt')
{
    $encrypt_method = "AES-256-CBC";
    $secret_key = 'AA74CDCC2BBRT935136HH7B63C27'; // user define private key
    $secret_iv = '5fgf5HJ5g27'; // user define secret key
    $key = hash('sha256', $secret_key);
    $iv = substr(hash('sha256', $secret_iv), 0, 16); // sha256 is hash_hmac_algo
    if ($action == 'encrypt') {
        $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
        $output = base64_encode($output);
    } else if ($action == 'decrypt') {
        $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
    }
    return $output;
}
 
echo "Your Encrypted password is = ". $pwd = encrypt_decrypt('spaceo', 'encrypt');
echo "Your Decrypted password is = ". encrypt_decrypt($pwd, 'decrypt');
Posted by: Guest on October-20-2020
2

encrypt and decrypt python

# encrypting
from cryptography.fernet import Fernet
message = "my deep dark secret".encode()

f = Fernet(key)
encrypted = f.encrypt(message)
# decrypting
from cryptography.fernet import Fernet
encrypted = b"...encrypted bytes..."

f = Fernet(key)
decrypted = f.decrypt(encrypted)
Posted by: Guest on May-24-2020
1

php two way encrypt decrypt

function encryptor($action, $string) {
	$output = FALSE;
	$encrypt_method = "AES-256-CBC";
	$secret_key = 'SecretKeyWord';
	$secret_iv  = 'SecretIV@123GKrQp';
	// hash
	$key = hash('sha256', $secret_key);
	// iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
	$iv = substr(hash('sha256', $secret_iv), 0, 16);
	//do the encryption given text/string/number
	if ($action == 'encrypt') {
		$output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
		$output = base64_encode($output);
	} elseif ($action == 'decrypt') {
		//decrypt the given text/string/number
		$output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
	}
	return $output;
}

function encrypt($data) {
	return urlencode(self::encryptor('encrypt', self::sanitize($data)));
}

function decrypt($data) {
	return self::encryptor('decrypt', urldecode(self::sanitize($data)));
}
// Now you can just call encrypt($string) or decrypt($string)
?>
Posted by: Guest on December-02-2020
0

encryption and decryption in php example

$decoded = base64_decode($encoded);
Posted by: Guest on June-13-2020
0

Encrypt in PHP openssl and decrypt in javascript CryptoJS

function CryptoJSAesEncrypt($passphrase, $plain_text){

    $salt = openssl_random_pseudo_bytes(256);
    $iv = openssl_random_pseudo_bytes(16);
    //on PHP7 can use random_bytes() istead openssl_random_pseudo_bytes()
    //or PHP5x see : https://github.com/paragonie/random_compat

    $iterations = 999;  
    $key = hash_pbkdf2("sha512", $passphrase, $salt, $iterations, 64);

    $encrypted_data = openssl_encrypt($plain_text, 'aes-256-cbc', hex2bin($key), OPENSSL_RAW_DATA, $iv);

    $data = array("ciphertext" => base64_encode($encrypted_data), "iv" => bin2hex($iv), "salt" => bin2hex($salt));
    return json_encode($data);
}

$string_json_fromPHP = CryptoJSAesEncrypt("your passphrase", "your plain text");
Posted by: Guest on November-26-2019

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