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<?php |
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namespace BPT\tools; |
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use BPT\constants\cryptoAction; |
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use BPT\constants\loggerTypes; |
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use BPT\exception\bptException; |
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use BPT\logger; |
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trait encrypt { |
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/** |
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* encrypt or decrypt a text with really high security |
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* |
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* action parameter must be encrypt or decrypt |
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* |
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* string parameter is your hash(received when use encrypt) or the text you want to encrypt |
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* |
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* for decrypt , you must have key and iv parameter. you can found them in result of encrypt |
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* |
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* e.g. => tools::crypto(action: 'decrypt', text: '9LqUf9DSuRRwfo03RnA5Kw==', key: '39aaadf402f9b921b1d44e33ee3b022716a518e97d6a7b55de8231de501b4f34', iv: 'a2e5904a4110169e'); |
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* |
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* e.g. => tools::crypto(cryptoAction::ENCRYPT,'hello world'); |
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* |
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* @param string $action e.g. => cryptoAction::ENCRYPT | 'encrypt' |
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* @param string $text e.g. => 'hello world' |
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* @param null|string $key e.g. => Optional, 39aaadf402f9b921b1d44e33ee3b022716a518e97d6a7b55de8231de501b4f34 |
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* @param null|string $iv e.g. => Optional, a2e5904a4110169e |
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* |
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* @return string|bool|array{hash:string, key:string, iv:string} |
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* @throws bptException |
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*/ |
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public static function crypto (string $action, string $text, string $key = null, string $iv = null): bool|array|string { |
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if (extension_loaded('openssl')) { |
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if ($action === cryptoAction::ENCRYPT) { |
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$key = self::randomString(64); |
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$iv = self::randomString(); |
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$output = base64_encode(openssl_encrypt($text, 'AES-256-CBC', $key, 1, $iv)); |
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return ['hash' => $output, 'key' => $key, 'iv' => $iv]; |
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} |
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elseif ($action === cryptoAction::DECRYPT) { |
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if (empty($key)) { |
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logger::write("tools::crypto function used\nkey parameter is not set",loggerTypes::ERROR); |
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throw new bptException('ARGUMENT_NOT_FOUND_KEY'); |
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} |
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elseif (empty($iv)) { |
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logger::write("tools::crypto function used\niv parameter is not set",loggerTypes::ERROR); |
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throw new bptException('ARGUMENT_NOT_FOUND_IV'); |
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} |
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return openssl_decrypt(base64_decode($text), 'AES-256-CBC', $key, 1, $iv); |
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} |
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else { |
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logger::write("tools::crypto function used\naction is not right, its must be `encode` or `decode`",loggerTypes::WARNING); |
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return false; |
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} |
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} |
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else { |
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logger::write("tools::crypto function used\nopenssl extension is not found , It may not be installed or enabled",loggerTypes::ERROR); |
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throw new bptException('OPENSSL_EXTENSION_MISSING'); |
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} |
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} |
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/** |
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* encode int to a string |
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* |
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* e.g. => tools::shortEncode(123456789); |
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* |
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* @param int $num |
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* |
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* @return string |
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*/ |
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public static function shortEncode(int $num): string { |
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$codes = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; |
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$array = []; |
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while ($num > 0){ |
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$array[] = $num % 62; |
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$num = floor($num / 62); |
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} |
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if (count($array) < 1) $array = [0]; |
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foreach ($array as &$value) { |
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$value = $codes[$value]; |
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} |
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return strrev(implode('',$array)); |
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} |
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/** |
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* decode string to int |
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* |
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* e.g. => tools::shortDecode('8m0Kx'); |
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* |
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* @param string $text |
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* |
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* @return int |
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*/ |
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public static function shortDecode(string $text): int{ |
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$codes = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; |
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$num = 0; |
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$text = str_split(strrev($text)); |
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foreach ($text as $key=>$value) { |
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$num += strpos($codes,$value) * pow(62,$key); |
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} |
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return $num; |
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} |
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} |
BPTproto /
BPT-Multi
