public static void ReadEnumeratedBytes_Throws(PublicEncodingRules ruleSet, string inputHex)
{
byte[] inputData = inputHex.HexToByteArray();
AsnReader reader = new AsnReader(inputData, (AsnEncodingRules)ruleSet);
Assert.Throws <CryptographicException>(() => reader.ReadEnumeratedBytes());
}
public static void ReadEnumeratedBytes(PublicEncodingRules ruleSet)
{
const string Payload = "0102030405060708090A0B0C0D0E0F10";
// ENUMERATED (payload) followed by INTEGER (0)
byte[] data = ("0A10" + Payload + "020100").HexToByteArray();
AsnReader reader = new AsnReader(data, (AsnEncodingRules)ruleSet);
ReadOnlyMemory <byte> contents = reader.ReadEnumeratedBytes();
Assert.Equal(0x10, contents.Length);
Assert.Equal(Payload, contents.ByteArrayToHex());
}
public static void ExpectedTag_IgnoresConstructed(
AsnEncodingRules ruleSet,
string inputHex,
TagClass tagClass,
int tagValue)
{
Asn1Tag primitiveTag = new Asn1Tag(tagClass, tagValue, false);
Asn1Tag constructedTag = new Asn1Tag(tagClass, tagValue, true);
byte[] inputData = inputHex.HexToByteArray();
AsnReader reader = new AsnReader(inputData, ruleSet);
ShortBacked val1 = reader.ReadEnumeratedValue <ShortBacked>(constructedTag);
Assert.False(reader.HasData);
reader = new AsnReader(inputData, ruleSet);
ShortBacked val2 = reader.ReadEnumeratedValue <ShortBacked>(primitiveTag);
Assert.False(reader.HasData);
Assert.Equal(val1, val2);
reader = new AsnReader(inputData, ruleSet);
ShortBacked val3 = (ShortBacked)reader.ReadEnumeratedValue(typeof(ShortBacked), constructedTag);
Assert.False(reader.HasData);
Assert.Equal(val1, val3);
reader = new AsnReader(inputData, ruleSet);
ShortBacked val4 = (ShortBacked)reader.ReadEnumeratedValue(typeof(ShortBacked), primitiveTag);
Assert.False(reader.HasData);
Assert.Equal(val1, val4);
reader = new AsnReader(inputData, ruleSet);
ReadOnlyMemory <byte> bytes1 = reader.ReadEnumeratedBytes(constructedTag);
Assert.False(reader.HasData);
reader = new AsnReader(inputData, ruleSet);
ReadOnlyMemory <byte> bytes2 = reader.ReadEnumeratedBytes(primitiveTag);
Assert.False(reader.HasData);
Assert.Equal(bytes1.ByteArrayToHex(), bytes2.ByteArrayToHex());
Assert.Equal("FF", bytes1.ByteArrayToHex());
}