1 files changed, 31 insertions, 1 deletions
diff --git a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/BPKBuilder.java b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/BPKBuilder.java
index 6cc8c1be8..cc228298b 100644
--- a/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/BPKBuilder.java
+++ b/id/server/idserverlib/src/main/java/at/gv/egovernment/moa/id/auth/builder/BPKBuilder.java
@@ -42,7 +42,37 @@ public class BPKBuilder {
       String hashBase64 = Base64Utils.encode(hash);
       return hashBase64;
     } catch (Exception ex) {
-      throw new BuildException("builder.00", new Object[] {"BPK", ex.toString()}, ex);
+      throw new BuildException("builder.00", new Object[] {"bPK", ex.toString()}, ex);
+    }
+  }
+
+  /**
+   * Builds the wbPK from the given parameters. 
+   * @param identificationValue Base64 encoded "Stammzahl" 
+   * @param registerAndOrdNr type of register + "+" + number in register.
+   * @return wbPK in a BASE64 encoding
+   * @throws BuildException if an error occurs on building the wbPK
+   */
+  public String buildWBPK(String identificationValue, String registerAndOrdNr) 
+    throws BuildException {
+    
+    if ((identificationValue == null || 
+         identificationValue.length() == 0 ||
+         registerAndOrdNr == null || 
+         registerAndOrdNr.length() == 0)) 
+    {
+      throw new BuildException("builder.00", 
+          new Object[] {"wbPK", "Unvollständige Parameterangaben: identificationValue=" + 
+                        identificationValue + ",Register+Registernummer=" + registerAndOrdNr});
+    }
+    String basisbegriff = identificationValue + "+" + Constants.URN_PREFIX_WBPK + "+" + registerAndOrdNr;
+    try {
+      MessageDigest md = MessageDigest.getInstance("SHA-1");
+      byte[] hash = md.digest(basisbegriff.getBytes("ISO-8859-1"));
+      String hashBase64 = Base64Utils.encode(hash);
+      return hashBase64;
+    } catch (Exception ex) {
+      throw new BuildException("builder.00", new Object[] {"wbPK", ex.toString()}, ex);
     }
   }