encode method

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

Encode the ASN1Null to the byte representation.

This basically returns 0x05, 0x00 or 0x05, 0x81, 0x00 depending on the encodingRule and will not call the super.encode() method.

Supported encoding rules are :

• ASN1EncodingRule.ENCODING_DER
• ASN1EncodingRule.ENCODING_BER_LONG_LENGTH_FORM

Implementation

@override
Uint8List encode(
    {ASN1EncodingRule encodingRule = ASN1EncodingRule.ENCODING_DER}) {
  switch (encodingRule) {
    case ASN1EncodingRule.ENCODING_DER:
      return Uint8List.fromList([tag!, 0x00]);
    case ASN1EncodingRule.ENCODING_BER_LONG_LENGTH_FORM:
      return Uint8List.fromList([tag!, 0x81, 0x00]);
    default:
      throw UnsupportedAsn1EncodingRuleException(encodingRule);
  }
}