diff --git a/src/Vigenere.java b/src/Vigenere.java
new file mode 100644
index 0000000..9ce407e
--- /dev/null
+++ b/src/Vigenere.java
@@ -0,0 +1,36 @@
+public class Vigenere {
+
+    public static void main(String[] args) {
+        System.out.println(encode("die vigenere verschluesselung ist ein " +
+                "polyalphabetisches Verfahren, das wesentlich" +
+                "sicherer ist als die monoalphabetischen Verfahren" +
+                "wie etwa die caesar verschluesselung.", "OBWALDEN"));
+    }
+
+
+    private static final char[][] SQUARE;
+
+    static {
+        SQUARE = new char[26][26];
+        for (int i = 0; i < 26; i++) {
+            for (int j = 0; j < 26; j++) {
+                SQUARE[i][j] = (char) ('A' + ((j + i) % 26));
+            }
+        }
+    }
+
+    private static String encode(String text, String secret) {
+        final String preprocessedText = text.toUpperCase().replaceAll("\\W", "");
+        final String secretRepeat = secret.repeat(text.length() / secret.length() + 1).toUpperCase();
+        final StringBuilder result = new StringBuilder();
+        for (int i = 0; i < preprocessedText.length(); i++) {
+            final char c = preprocessedText.charAt(i);
+            final char s = secretRepeat.charAt(i);
+
+            final char[] cypher = SQUARE[s - 'A'];
+            final char encoded = cypher[c - 'A'];
+            result.append(encoded);
+        }
+        return result.toString();
+    }
+}