php:json_decryption
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php:json_decryption [2018/11/27 14:50] john |
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| - | ===== JSON Decryption ===== | ||
| - | This code works with a JSON stream encrypted with CryptoJS. You can use PHP with openSSL support to decrypt the data stream using your password. | ||
| - | < | ||
| - | /** | ||
| - | * Decrypt data from a CryptoJS json encoding string | ||
| - | * | ||
| - | * @param mixed $passphrase | ||
| - | * @param mixed $jsonString | ||
| - | * @return mixed | ||
| - | */ | ||
| - | function Decrypt($passphrase, | ||
| - | $jsondata = json_decode($jsonString, | ||
| - | $salt = hex2bin($jsondata[" | ||
| - | $ct = base64_decode($jsondata[" | ||
| - | $iv = hex2bin($jsondata[" | ||
| - | $concatedPassphrase = $passphrase.$salt; | ||
| - | $md5 = array(); | ||
| - | $md5[0] = md5($concatedPassphrase, | ||
| - | $result = $md5[0]; | ||
| - | for ($i = 1; $i < 3; $i++) { | ||
| - | $md5[$i] = md5($md5[$i - 1].$concatedPassphrase, | ||
| - | $result .= $md5[$i]; | ||
| - | } | ||
| - | $key = substr($result, | ||
| - | $data = openssl_decrypt($ct, | ||
| - | return json_decode($data, | ||
| - | } | ||
| - | |||
| - | </ | ||
| - | |||
| - | === Encrypt === | ||
| - | < | ||
| - | /** | ||
| - | * Encrypt value to a cryptojs compatiable json encoding string | ||
| - | * | ||
| - | * @param mixed $passphrase | ||
| - | * @param mixed $value | ||
| - | * @return string | ||
| - | */ | ||
| - | function cryptoJsAesEncrypt($passphrase, | ||
| - | $salt = openssl_random_pseudo_bytes(8); | ||
| - | $salted = ''; | ||
| - | $dx = ''; | ||
| - | while (strlen($salted) < 48) { | ||
| - | $dx = md5($dx.$passphrase.$salt, | ||
| - | $salted .= $dx; | ||
| - | } | ||
| - | $key = substr($salted, | ||
| - | $iv = substr($salted, | ||
| - | $encrypted_data = openssl_encrypt(json_encode($value), | ||
| - | $data = array(" | ||
| - | return json_encode($data); | ||
| - | } | ||
| - | |||
| - | |||
| - | |||
| - | </ | ||
| - | |||
| - | === Execute === | ||
| - | < | ||
| - | |||
| - | $json = file_get_contents(' | ||
| - | $data = json_decode($json); | ||
| - | $secret = "YOUR PASSWORD"; | ||
| - | $rdat = Decrypt($secret, | ||
| - | echo $rdat; | ||
| - | |||
| - | </ | ||
php/json_decryption.1543348206.txt.gz ยท Last modified: 2018/11/27 14:50 by john
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