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qa-tool/htdocs/oidc/phpseclib/Crypt/DSA/Formats/Signature/ASN1.php

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+<?php
+
+/**
+ * ASN1 Signature Handler
+ *
+ * PHP version 5
+ *
+ * Handles signatures in the format described in
+ * https://tools.ietf.org/html/rfc3279#section-2.2.2
+ *
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2016 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+declare(strict_types=1);
+
+namespace phpseclib3\Crypt\DSA\Formats\Signature;
+
+use phpseclib3\File\ASN1 as Encoder;
+use phpseclib3\File\ASN1\Maps;
+use phpseclib3\Math\BigInteger;
+
+/**
+ * ASN1 Signature Handler
+ *
+ * @author  Jim Wigginton <terrafrost@php.net>
+ */
+abstract class ASN1
+{
+    /**
+     * Loads a signature
+     *
+     * @return array|bool
+     */
+    public static function load(string $sig)
+    {
+        if (!is_string($sig)) {
+            return false;
+        }
+
+        $decoded = Encoder::decodeBER($sig);
+        if (empty($decoded)) {
+            return false;
+        }
+        $components = Encoder::asn1map($decoded[0], Maps\DssSigValue::MAP);
+
+        return $components;
+    }
+
+    /**
+     * Returns a signature in the appropriate format
+     */
+    public static function save(BigInteger $r, BigInteger $s): string
+    {
+        return Encoder::encodeDER(compact('r', 's'), Maps\DssSigValue::MAP);
+    }
+}

qa-tool/htdocs/oidc/phpseclib/Crypt/DSA/Formats/Signature/Raw.php

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+<?php
+
+/**
+ * Raw DSA Signature Handler
+ *
+ * PHP version 5
+ *
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2016 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+declare(strict_types=1);
+
+namespace phpseclib3\Crypt\DSA\Formats\Signature;
+
+use phpseclib3\Crypt\Common\Formats\Signature\Raw as Progenitor;
+
+/**
+ * Raw DSA Signature Handler
+ *
+ * @author  Jim Wigginton <terrafrost@php.net>
+ */
+abstract class Raw extends Progenitor
+{
+}

qa-tool/htdocs/oidc/phpseclib/Crypt/DSA/Formats/Signature/SSH2.php

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+<?php
+
+/**
+ * SSH2 Signature Handler
+ *
+ * PHP version 5
+ *
+ * Handles signatures in the format used by SSH2
+ *
+ * @author    Jim Wigginton <terrafrost@php.net>
+ * @copyright 2016 Jim Wigginton
+ * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
+ * @link      http://phpseclib.sourceforge.net
+ */
+
+declare(strict_types=1);
+
+namespace phpseclib3\Crypt\DSA\Formats\Signature;
+
+use phpseclib3\Common\Functions\Strings;
+use phpseclib3\Math\BigInteger;
+
+/**
+ * SSH2 Signature Handler
+ *
+ * @author  Jim Wigginton <terrafrost@php.net>
+ */
+abstract class SSH2
+{
+    /**
+     * Loads a signature
+     */
+    public static function load(string $sig)
+    {
+        if (!is_string($sig)) {
+            return false;
+        }
+
+        $result = Strings::unpackSSH2('ss', $sig);
+        if ($result === false) {
+            return false;
+        }
+        [$type, $blob] = $result;
+        if ($type != 'ssh-dss' || strlen($blob) != 40) {
+            return false;
+        }
+
+        return [
+            'r' => new BigInteger(substr($blob, 0, 20), 256),
+            's' => new BigInteger(substr($blob, 20), 256),
+        ];
+    }
+
+    /**
+     * Returns a signature in the appropriate format
+     *
+     * @return string
+     */
+    public static function save(BigInteger $r, BigInteger $s)
+    {
+        if ($r->getLength() > 160 || $s->getLength() > 160) {
+            return false;
+        }
+        return Strings::packSSH2(
+            'ss',
+            'ssh-dss',
+            str_pad($r->toBytes(), 20, "\0", STR_PAD_LEFT) .
+            str_pad($s->toBytes(), 20, "\0", STR_PAD_LEFT)
+        );
+    }
+}