code: public boolean matches(TagClass tagClass, EncodingType encodingType, int tagNumber) {
          return this.tagClass == tagClass && this.encodingType == encodingType && this.tagNumber == tagNumber;
      }
docs: Tests whether this DER identifier matches the specified tag class, encoding type and tag number.
  
  @param tagClass
  the tag class to match against
  @param encodingType
  the encoding type to match against
  @param tagNumber
  the tag number to match against
  @return whether there's a match