1 files changed, 47 insertions, 1 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java b/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
index cc59cbd..54de38d 100644
--- a/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
+++ b/src/main/java/at/gv/egiz/pdfas/api/sign/SignParameters.java
@@ -55,7 +55,36 @@ public class SignParameters
    * profile here instead of the profile id.
    * </p>
    */
-  protected String signatureProfileId = null;;
+  protected String signatureProfileId = null;
+  
+  /**
+   * The signature key identifier specifying which signature key should be used
+   * by the signature device to perform the signature.
+   * 
+   * <p>
+   * Providing a null value (default) means that no explicit signature key
+   * identifier is provided. The selected signature device will then use its
+   * default mechanism for retrieving this information (which is usually to read
+   * the key from the provided signature profile).
+   * </p>
+   * <p>
+   * Note that not all signature devices may support this parameter.
+   * If a signature device doesn't support this parameter the value should be null.
+   * </p>
+   * <p>
+   * This key is usually passed straight through to the signature device and
+   * thereby has to contain an appropriate value for the signature device
+   * chosen.
+   * </p>
+   * <p>
+   * Currently, only the {@link Constants#SIGNATURE_DEVICE_MOA} signature device
+   * evaluates this parameter and passes the provided String to MOA as the MOA
+   * key group identifier. If null is provided, the MOA signature device will
+   * determine the signature key identifier to be used from the provided profile
+   * and, if not specified there either, from the MOA default configuration.
+   * </p>
+   */
+  protected String signatureKeyIdentifier = null;
 
   /**
    * The signature position. Consult the PDF-AS documentation section
@@ -170,4 +199,21 @@ public class SignParameters
     this.output = output;
   }
 
+  /**
+   * @return the signatureKeyIdentifier
+   */
+  public String getSignatureKeyIdentifier()
+  {
+    return this.signatureKeyIdentifier;
+  }
+
+  /**
+   * @param signatureKeyIdentifier the signatureKeyIdentifier to set
+   */
+  public void setSignatureKeyIdentifier(String signatureKeyIdentifier)
+  {
+    this.signatureKeyIdentifier = signatureKeyIdentifier;
+  }
+
+
 }