Create new class for IPB4 encryption method.

src/main/java/fr/xephi/authme/security/crypts/description/IPB4.java

@@ -0,0 +1,35 @@
+package fr.xephi.authme.security.crypts.description;
+
+import fr.xephi.authme.security.crypts.EncryptionMethod;
+import fr.xephi.authme.security.crypts.HashedPassword;
+
+
+@Recommendation(Usage.DOES_NOT_WORK)
+@HasSalt(value = SaltType.TEXT)
+public class IPB4 implements EncryptionMethod {
+
+    @Override
+    public String computeHash(String password, String salt, String name) {
+        return null;
+    }
+
+    @Override
+    public HashedPassword computeHash(String password, String name) {
+        return null;
+    }
+
+    @Override
+    public boolean comparePassword(String password, HashedPassword hash, String name) {
+        return false;
+    }
+
+    @Override
+    public String generateSalt() {
+        return null;
+    }
+
+    @Override
+    public boolean hasSeparateSalt() {
+        return false;
+    }
+}