101 lines
2.7 KiB
PHP
101 lines
2.7 KiB
PHP
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<?php
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namespace nur\passwd;
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use nur\b\IllegalAccessException;
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/**
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* Class passwords; outils pour gérer les mots de passe
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*/
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class passwords {
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/** obtenir le salt d'un mot de passe hashé en CRYPT */
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static function get_des_crypt_salt(string $crypt): string {
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return substr($crypt, 0, 2);
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}
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static function des_crypt(string $clear, ?string $salt=null): string {
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if ($salt === null) $salt = "AA";
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return crypt($clear, $salt);
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}
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static function sha(string $clear): string {
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return base64_encode(sha1($clear, true));
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}
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static function xsha(string $clear): string {
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return strtoupper(sha1($clear));
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}
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/** obtenir le salt d'un mot de passe hashé en SSHA */
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static function get_ssha_salt(string $ssha): string {
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return substr(base64_decode($ssha), 20);
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}
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static function ssha(string $clear, ?string $salt=null): string {
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if ($salt === null) $salt = random_bytes(20);
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return base64_encode(sha1("$clear$salt", true).$salt);
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}
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static function ntlm(string $clear): string {
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$string = iconv("UTF-8", "UTF-16LE", $clear);
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return strtoupper(bin2hex(hash("md4", $string, true)));
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}
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private static function lm_des_encrypt(string $string) {
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$len = strlen($string);
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$tmp = [];
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for ($i = 0; $i < 7; $i++) {
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$tmp[] = $i < $len? ord($string[$i]): 0;
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}
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$key = [];
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$key[] = $tmp[0] & 254;
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$key[] = ($tmp[0] << 7) | ($tmp[1] >> 1);
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$key[] = ($tmp[1] << 6) | ($tmp[2] >> 2);
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$key[] = ($tmp[2] << 5) | ($tmp[3] >> 3);
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$key[] = ($tmp[3] << 4) | ($tmp[4] >> 4);
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$key[] = ($tmp[4] << 3) | ($tmp[5] >> 5);
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$key[] = ($tmp[5] << 2) | ($tmp[6] >> 6);
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$key[] = $tmp[6] << 1;
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$key0 = "";
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foreach ($key as $k) {
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$key0 .= chr($k);
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}
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$crypt = openssl_encrypt("KGS!@#$%", "des-ecb", $key0
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, OPENSSL_RAW_DATA + OPENSSL_ZERO_PADDING);
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return bin2hex($crypt);
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}
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static function lm(string $clear): string {
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$string = strtoupper(substr($clear,0,14));
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$part1 = self::lm_des_encrypt(substr($string, 0, 7));
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$part2 = self::lm_des_encrypt(substr($string, 7, 7));
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return strtoupper($part1.$part2);
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}
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private static $lsc_key;
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static function init_lsc(string $key): void {
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self::$lsc_key = hex2bin($key);
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}
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private static function lsc_key(): string {
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$lsc_key = self::$lsc_key;
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if ($lsc_key === null) {
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throw IllegalAccessException::unexpected_state("init_lsc");
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}
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return $lsc_key;
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}
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static function is_lsc_available(): bool {
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return self::$lsc_key !== null;
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}
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static function decrypt_lsc(string $lsc): string {
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return openssl_decrypt($lsc, "aes-128-ecb", self::lsc_key());
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}
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static function encrypt_lsc(string $clear): string {
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return openssl_encrypt($clear, "aes-128-ecb", self::lsc_key());
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}
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}
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