From 10a5439fc50f549701090f15bb1330b0d1ed28a9 Mon Sep 17 00:00:00 2001
From: ulrich@undisclosed <ulrich@ulrich-vaio>
Date: Tue, 19 May 2020 13:13:28 +0000
Subject: [PATCH] In Arbeit: Piktogramme, Abmelden, Stile verfeinert

---
 src/java/de/uhilger/um/Digester.java |   47 +++++++++++++++++++++++++++++++----------------
 1 files changed, 31 insertions(+), 16 deletions(-)

diff --git a/src/java/de/uhilger/um/Digester.java b/src/java/de/uhilger/um/Digester.java
index 0ca00c2..1d2403f 100644
--- a/src/java/de/uhilger/um/Digester.java
+++ b/src/java/de/uhilger/um/Digester.java
@@ -1,20 +1,21 @@
 /*
- Nutzerverwaltung - A Generic User Manager
- Copyright (c) 2016  Ulrich Hilger
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- GNU Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  Nutzerverwaltung - User and role management in your browser
+ *  Copyright (C) 2011-2017 Ulrich Hilger, http://uhilger.de
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see http://www.gnu.org/licenses/
  */
+
 package de.uhilger.um;
 
 /**
@@ -33,7 +34,8 @@
   
   /** Name des MD5-Algorithmus zum Verschl&uuml;sseln */
   public static final String MD5 = "MD5";
-
+  public static final String SHA256 = "sha-256";
+  
   /**
    * Einen Ausdruck verschl&uuml;sseln
    * 
@@ -43,4 +45,17 @@
    * @return  der verschl&uuml;sselte Ausdruck
    */
   String digest(String text, String algorithm, String encoding);
+  
+  /**
+   * Einen Klartext-Ausdruck mit seiner verschluesselten Fassung vergleichen
+   * @param inputCredentials der Klartext-Ausdruck fuer den festgestellt werden soll, 
+   * ob er zum gespeicherten Ausdruck passt
+   * @param storedCredentials  der gespeicherte (verschluesselte) Ausdruck, fuer den 
+   * festgestellt werden soll, ob er zum Klartext-Ausdruck passt
+   * @param algorithm  der Verschluesselungs-Algorithmus
+   * @param encoding  das Encoding
+   * @return wahr, wenn der Klartext-Ausdruck dem hinterlegten verschluesselten Ausdruck 
+   * entspricht, falsch, wenn nicht
+   */
+  boolean matches(String inputCredentials, String storedCredentials, String algorithm, String encoding);
 }

--
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