encode method

@override Uint8List encode({ ASN1EncodingRule encodingRule = ASN1EncodingRule.ENCODING_DER, })

Encodes this ASN1Object depending on the given encodingRule

If no ASN1EncodingRule is given, ENCODING_DER will be used.

Supported encoding rules are :

• ASN1EncodingRule.ENCODING_DER

Throws an UnsupportedAsn1EncodingRuleException if the given encodingRule is not supported.

Implementation

@override
Uint8List encode(
    {ASN1EncodingRule encodingRule = ASN1EncodingRule.ENCODING_DER}) {
  if (encodingRule != ASN1EncodingRule.ENCODING_DER) {
    throw UnsupportedAsn1EncodingRuleException(encodingRule);
  }
  var oi = <int>[];
  oi.add(objectIdentifier![0] * 40 + objectIdentifier![1]);

  for (var ci = 2; ci < objectIdentifier!.length; ci++) {
    var position = oi.length;
    var v = objectIdentifier![ci];
    assert(v >= 0);

    var first = true;
    do {
      var remainder = v & 127;
      v = v >> 7;
      if (first) {
        first = false;
      } else {
        remainder |= 0x80;
      }

      oi.insert(position, remainder);
    } while (v > 0);
  }

  valueBytes = Uint8List.fromList(oi);
  valueByteLength = oi.length;

  return super.encode();
}