protected override void Serialize(
SecureMemoryHandle keyHandle,
Span <byte> span)
{
Debug.Assert(keyHandle.Size == crypto_scalarmult_curve25519_SCALARBYTES);
Debug.Assert(span.Length == crypto_scalarmult_curve25519_SCALARBYTES);
keyHandle.CopyTo(span);
}
public static bool TryExport(
SecureMemoryHandle keyHandle,
Span <byte> blob,
out int blobSize)
{
blobSize = keyHandle.Size;
if (blob.Length < blobSize)
{
return(false);
}
keyHandle.CopyTo(blob);
return(true);
}
public static bool TryExport(
uint blobHeader,
int keySize,
int outputSize,
SecureMemoryHandle keyHandle,
Span <byte> blob,
out int blobSize)
{
Debug.Assert(keyHandle.Size == keySize);
blobSize = sizeof(uint) + sizeof(short) + sizeof(short) + keySize;
if (blob.Length < blobSize)
{
return(false);
}
BinaryPrimitives.WriteUInt32BigEndian(blob, blobHeader);
BinaryPrimitives.WriteInt16LittleEndian(blob.Slice(sizeof(uint)), (short)keySize);
BinaryPrimitives.WriteInt16LittleEndian(blob.Slice(sizeof(uint) + sizeof(short)), (short)outputSize);
keyHandle.CopyTo(blob.Slice(sizeof(uint) + sizeof(short) + sizeof(short), keySize));
return(true);
}