code: public String unDecorate( final String str )
          throws PlexusCipherException
      {
          Matcher matcher = ENCRYPTED_STRING_PATTERN.matcher( str );
  
          if ( matcher.matches() || matcher.find() )
          {
              return matcher.group( 1 );
          }
          else
          {
              throw new PlexusCipherException( "default.plexus.cipher.badEncryptedPassword" );
          }
      }
docs: -------------------