private uint[] calc_skein_mining_hash(byte[] d)
{
//Console.WriteLine("hash input : " + Utilities.hex(d, ", 0x"));
byte[] skein_out = skein_hash.ComputeBytes(d).GetBytes();
byte[] sha256_out = sha256_hash.ComputeBytes(skein_out).GetBytes();
uint[] hash = new uint[8];
Buffer.BlockCopy(sha256_out, 0, hash, 0, 32);
//Console.WriteLine("hash output : " + Utilities.hex(hash, ", 0x"));
return(hash);
}
/*
* public void TTT()
* {
* // TESTING
* HashLib.IHash hash = HashLib.HashFactory.Crypto.SHA3.CreateKeccak256();
* uint nonce = 1555736682;
*
* for (nonce = 1555736682-30; nonce < 1555736682+30; nonce++)
* {
* uint[] test_d = {
* 0x02000000,
* 0x1bf623cb,
* 0x95be646d,
* 0x1b9517bb,
* 0xddcaf549,
* 0x8ea62844,
* 0x0764def0,
* 0x73330000,
* 0x00000000,
* 0x808b4238,
* 0xc4277388,
* 0xab539e45,
* 0xc86d024c,
* 0x5c673def,
* 0xe0ce09dd,
* 0x16f4b072,
* 0xeb3242d5,
* 0xd54ff75a,
* 0xc2a9561a };
* byte[] hashIn = new byte[80];
* Buffer.BlockCopy(test_d, 0, hashIn, 0, 19 * 4);
* hashIn = Utilities.FlipByteArrayUInt32(hashIn);
* hashIn[76] = (byte)((nonce >> 24) & 0xff);
* hashIn[77] = (byte)((nonce >> 16) & 0xff);
* hashIn[78] = (byte)((nonce >> 8) & 0xff);
* hashIn[79] = (byte)((nonce) & 0xff);
* byte[] h = hash.ComputeBytes(hashIn).GetBytes();
* uint[] h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine("TTT H1: " + Utilities.hex(h32, " "));
*
* Buffer.BlockCopy(test_d, 0, hashIn, 0, 19 * 4);
* hashIn = Utilities.FlipByteArrayUInt32(hashIn);
* hashIn[79] = (byte)((nonce >> 24) & 0xff);
* hashIn[78] = (byte)((nonce >> 16) & 0xff);
* hashIn[77] = (byte)((nonce >> 8) & 0xff);
* hashIn[76] = (byte)((nonce) & 0xff);
* h = hash.ComputeBytes(hashIn).GetBytes();
* h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine("TTT H2: " + Utilities.hex(h32, " "));
* }
* }
*/
public void FoundNonce(uint nonce)
{
if (curWork == null)
{
return;
}
UInt64 target = (UInt64)((double)0xffff0000UL / (kcs.Difficulty / 256));
//UInt64 target = (UInt64)((double)0xffff0000UL / (kcs.Difficulty / 512));
//Console.WriteLine("target : " + String.Format("0x{0:X16}", target));
byte[] hashIn = curWork.Blob;
hashIn[79] = (byte)((nonce >> 24) & 0xff);
hashIn[78] = (byte)((nonce >> 16) & 0xff);
hashIn[77] = (byte)((nonce >> 8) & 0xff);
hashIn[76] = (byte)((nonce) & 0xff);
byte[] h = keccak_hash.ComputeBytes(hashIn).GetBytes();
uint[] h32 = new uint[h.Length >> 2];
Buffer.BlockCopy(h, 0, h32, 0, h.Length);
/* Difficulty check */
ulong val = ((ulong)h32[6]) | ((ulong)h32[7] << 32);
if (val <= target)
{
kcs.Submit(device, curWork, nonce);
Program.Logger("submit val:" + String.Format("0x{0:X16}", val) + " t64:" + String.Format("0x{0:X16}", target));
return;
}
if (prevWork != null)
{
hashIn = prevWork.Blob;
hashIn[79] = (byte)((nonce >> 24) & 0xff);
hashIn[78] = (byte)((nonce >> 16) & 0xff);
hashIn[77] = (byte)((nonce >> 8) & 0xff);
hashIn[76] = (byte)((nonce) & 0xff);
h = keccak_hash.ComputeBytes(hashIn).GetBytes();
uint[] prev_h32 = new uint[h.Length >> 2];
Buffer.BlockCopy(h, 0, prev_h32, 0, h.Length);
ulong val2 = ((ulong)prev_h32[6]) | ((ulong)prev_h32[7] << 32);
if (val2 <= target)
{
kcs.Submit(device, prevWork, nonce);
return;
}
/*
* Program.Logger("curw: " + Utilities.hex(h32, " "));
* Program.Logger("prew: " + Utilities.hex(prev_h32, " "));
* uint[] t = new uint[2];
* t[0] = (uint)(target & 0xFFFFFFFF);
* t[1] = (uint)(target >> 32);
* Program.Logger("Neither did meet the difficulty target of " + Utilities.hex(t, " "));*/
Program.Logger("val:" + String.Format("0x{0:X16}", val) + " val2: " + String.Format("0x{0:X16}", val2) + " t64:" + String.Format("0x{0:X16}", target));
}
/*
* // Test code to searc hfor right combo and nonce-slip
* HashLib.IHash hash = HashLib.HashFactory.Crypto.SHA3.CreateKeccak256();
*
* uint s_nonce = nonce - 30;
* uint e_nonce = nonce + 30;
* uint o_nonce = nonce;
*
* for (nonce = s_nonce; nonce < e_nonce; nonce++)
* {
*
* byte[] hashIn = curWork.Blob;
* hashIn[76] = (byte)((nonce >> 24) & 0xff);
* hashIn[77] = (byte)((nonce >> 16) & 0xff);
* hashIn[78] = (byte)((nonce >> 8) & 0xff);
* hashIn[79] = (byte)((nonce) & 0xff);
* byte[] h = hash.ComputeBytes(hashIn).GetBytes();
* uint[] h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine(""+(int)(nonce- o_nonce)+ " H1: " + Utilities.hex(h32, " "));
*
* hashIn = curWork.Blob;
* hashIn[79] = (byte)((nonce >> 24) & 0xff);
* hashIn[78] = (byte)((nonce >> 16) & 0xff);
* hashIn[77] = (byte)((nonce >> 8) & 0xff);
* hashIn[76] = (byte)((nonce) & 0xff);
* h = hash.ComputeBytes(hashIn).GetBytes();
* h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine("" + (int)(nonce - o_nonce) + " H2: " + Utilities.hex(h32, " "));
*
* hashIn = curWork.Blob;
* hashIn = Utilities.FlipByteArrayUInt32(hashIn);
* hashIn[76] = (byte)((nonce >> 24) & 0xff);
* hashIn[77] = (byte)((nonce >> 16) & 0xff);
* hashIn[78] = (byte)((nonce >> 8) & 0xff);
* hashIn[79] = (byte)((nonce) & 0xff);
* h = hash.ComputeBytes(hashIn).GetBytes();
* h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine("" + (int)(nonce - o_nonce) + " H3: " + Utilities.hex(h32, " "));
*
* hashIn = curWork.Blob;
* hashIn = Utilities.FlipByteArrayUInt32(hashIn);
* hashIn[79] = (byte)((nonce >> 24) & 0xff);
* hashIn[78] = (byte)((nonce >> 16) & 0xff);
* hashIn[77] = (byte)((nonce >> 8) & 0xff);
* hashIn[76] = (byte)((nonce) & 0xff);
* h = hash.ComputeBytes(hashIn).GetBytes();
* h32 = new uint[h.Length >> 2];
* Buffer.BlockCopy(h, 0, h32, 0, h.Length);
* Console.WriteLine("" + (int)(nonce - o_nonce) + " H4: " + Utilities.hex(h32, " "));
*
* }
*/
}
