Move salmonKey to Salmon class

move the salmonKey function from Crypto to Salmon

mod/hostxrd.php

@@ -5,6 +5,7 @@
 use Friendica\App;
 use Friendica\Core\Config;
 use Friendica\Core\System;
+use Friendica\Protocol\Salmon;
 use Friendica\Util\Crypto;
 
 function hostxrd_init(App $a)
@@ -25,7 +26,7 @@ function hostxrd_init(App $a)
 		'$zhost' => $a->get_hostname(),
 		'$zroot' => System::baseUrl(),
 		'$domain' => System::baseUrl(),
-		'$bigkey' => Crypto::salmonKey(Config::get('system', 'site_pubkey')))
+		'$bigkey' => Salmon::salmonKey(Config::get('system', 'site_pubkey')))
 	);
 
 	exit();

mod/xrd.php

@@ -5,7 +5,7 @@
 use Friendica\App;
 use Friendica\Core\System;
 use Friendica\Database\DBM;
-use Friendica\Util\Crypto;
+use Friendica\Protocol\Salmon;
 
 function xrd_init(App $a)
 {
@@ -58,7 +58,7 @@ function xrd_init(App $a)
 
 function xrd_json($a, $uri, $alias, $profile_url, $r)
 {
-	$salmon_key = Crypto::salmonKey($r['spubkey']);
+	$salmon_key = Salmon::salmonKey($r['spubkey']);
 
 	header('Access-Control-Allow-Origin: *');
 	header("Content-type: application/json; charset=utf-8");
@@ -84,7 +84,7 @@ function xrd_json($a, $uri, $alias, $profile_url, $r)
 
 function xrd_xml($a, $uri, $alias, $profile_url, $r)
 {
-	$salmon_key = Crypto::salmonKey($r['spubkey']);
+	$salmon_key = Salmon::salmonKey($r['spubkey']);
 
 	header('Access-Control-Allow-Origin: *');
 	header("Content-type: text/xml");

src/Protocol/Salmon.php

@@ -106,7 +106,7 @@ class Salmon
 		$data_type = 'application/atom+xml';
 		$encoding  = 'base64url';
 		$algorithm = 'RSA-SHA256';
-		$keyhash   = base64url_encode(hash('sha256', Crypto::salmonKey($owner['spubkey'])), true);
+		$keyhash   = base64url_encode(hash('sha256', self::salmonKey($owner['spubkey'])), true);
 
 		$precomputed = '.' . base64url_encode($data_type) . '.' . base64url_encode($encoding) . '.' . base64url_encode($algorithm);
 
@@ -200,4 +200,14 @@ class Salmon
 
 		return (($return_code >= 200) && ($return_code < 300)) ? 0 : 1;
 	}
+
+	/**
+	 * @param string $pubkey public key
+	 * @return string
+	 */
+	public static function salmonKey($pubkey)
+	{
+		self::pemToMe($pubkey, $m, $e);
+		return 'RSA' . '.' . base64url_encode($m, true) . '.' . base64url_encode($e, true);
+	}
 }

src/Util/Crypto.php

@@ -215,16 +215,6 @@ class Crypto
 		return $key;
 	}
 
-	/**
-	 * @param string $pubkey public key
-	 * @return string
-	 */
-	public static function salmonKey($pubkey)
-	{
-		self::pemToMe($pubkey, $m, $e);
-		return 'RSA' . '.' . base64url_encode($m, true) . '.' . base64url_encode($e, true);
-	}
-
 	/**
 	 * @param integer $bits number of bits
 	 * @return mixed