Beispiel #1
0
  @SuppressWarnings("deprecation")
  private byte[] extractKeyData(DerInputStream stream)
      throws IOException, NoSuchAlgorithmException, CertificateException {
    byte[] returnValue = null;
    DerValue[] safeBags = stream.getSequence(2);
    int count = safeBags.length;

    /*
     * Spin over the SafeBags.
     */
    for (int i = 0; i < count; i++) {
      ObjectIdentifier bagId;
      DerInputStream sbi;
      DerValue bagValue;
      Object bagItem = null;

      sbi = safeBags[i].toDerInputStream();
      bagId = sbi.getOID();
      bagValue = sbi.getDerValue();
      if (!bagValue.isContextSpecific((byte) 0)) {
        throw new IOException("unsupported PKCS12 bag value type " + bagValue.tag);
      }
      bagValue = bagValue.data.getDerValue();
      if (bagId.equals(PKCS8ShroudedKeyBag_OID)) {
        // got what we were looking for.  Return it.
        returnValue = bagValue.toByteArray();
      } else {
        // log error message for "unsupported PKCS12 bag type"
        System.out.println("Unsupported bag type '" + bagId + "'");
      }
    }

    return returnValue;
  }
Beispiel #2
0
 /*
  * parse Algorithm Parameters
  */
 private AlgorithmParameters parseAlgParameters(DerInputStream in) throws IOException {
   AlgorithmParameters algParams = null;
   try {
     DerValue params;
     if (in.available() == 0) {
       params = null;
     } else {
       params = in.getDerValue();
       if (params.tag == DerValue.tag_Null) {
         params = null;
       }
     }
     if (params != null) {
       algParams = AlgorithmParameters.getInstance("PBE");
       algParams.init(params.toByteArray());
     }
   } catch (Exception e) {
     IOException ioe = new IOException("parseAlgParameters failed: " + e.getMessage());
     ioe.initCause(e);
     throw ioe;
   }
   return algParams;
 }