public static bool is7BitEncodedString(ElementInfo info)
{
bool is7Bit = false;
int stringType = CoderUtils.getStringTagForElement(info);
is7Bit = (
stringType == org.bn.coders.UniversalTags.PrintableString ||
stringType == org.bn.coders.UniversalTags.VisibleString
);
return(is7Bit);
}
public override DecodedObject <object> decodeString(DecodedObject <object> decodedTag, System.Type objectClass, ElementInfo elementInfo, System.IO.Stream stream)
{
if (!checkTagForObject(decodedTag, TagClasses.Universal, ElementType.Primitive, CoderUtils.getStringTagForElement(elementInfo), elementInfo))
{
return(null);
}
DecodedObject <int> len = decodeLength(stream);
CoderUtils.checkConstraints(len.Value, elementInfo);
byte[] byteBuf = new byte[len.Value];
stream.Read(byteBuf, 0, byteBuf.Length);
string result = CoderUtils.bufferToASN1String(byteBuf, elementInfo);
return(new DecodedObject <object>(result, len.Value + len.Size));
}
public override int encodeString(object obj, Stream stream, ElementInfo elementInfo)
{
int resultSize = 0, sizeOfString = 0;
byte[] buffer = CoderUtils.ASN1StringToBuffer(obj, elementInfo);
sizeOfString = buffer.Length;
CoderUtils.checkConstraints(sizeOfString, elementInfo);
stream.Write(buffer, 0, buffer.Length);
resultSize += sizeOfString;
resultSize += encodeLength(sizeOfString, stream);
resultSize += encodeTag(BERCoderUtils.getTagValueForElement(elementInfo, TagClasses.Universal, ElementType.Primitive, CoderUtils.getStringTagForElement(elementInfo)), stream);
return(resultSize);
}