public static unsafe Block CreateBlock(int no, byte[] previous, int nonce, byte[] data)
{
if (previous.Length != 32)
{
throw new System.ArgumentOutOfRangeException("previous", "Invalid hash key.");
}
System.TimeSpan t = System.DateTime.UtcNow - new System.DateTime(1970, 1, 1);
Block block = new Block()
{
no = no,
nonce = nonce
};
fixed(byte *p = previous)
{
Block.Copy(block.previous, p, 32);
}
if (data != null)
{
block.len = data.Length;
if (block.len > 940)
{
throw new System.ArgumentOutOfRangeException("data", "Invalid data size.");
}
fixed(byte *p = data)
{
Block.Copy(block.data, p, block.len);
}
}
block.timestamp = (int)t.TotalSeconds;
byte[] hash = Block.Sign(CreateBlock(&block, false));
fixed(byte *p = hash)
{
Block.Copy(block.hash, p, 32);
}
return(block);
}
public static unsafe bool IsValidBlock(Block *src, byte *previous)
{
if (src == null)
{
return(false);
}
byte[] hash = src->GetHash();
if (!Compare(Block.Sign(CreateBlock(src, true)), hash))
{
return(false);
}
if (previous != null)
{
if (!Compare(src->GetPreviousHash(), previous))
{
return(false);
}
}
return(true);
}