public override void Run(object?arg)
{
string prefix1 = string.Concat(AddressPrefix, "3", keyword);
string prefix2 = string.Concat(AddressPrefix, "1", keyword);
string suffix1 = keyword;
byte[] seedBytes = new byte[32];
byte[] secretBytes = new byte[32];
byte[] indexBytes = new byte[4];
byte[] publicKeyBytes = new byte[32];
byte[] checksumBytes = new byte[5];
byte[] tmp = new byte[64];
AddressBuffer addressBuffer = new(AddressPrefix.Length + 60);
bool canMatchPrefix = this.canMatchPrefix;
bool canMatchSuffix = this.canMatchSuffix;
CancellationToken cancellationToken = this.cancellationToken;
System.Action <string, string> resultCallback = this.resultCallback;
addressBuffer.Append(AddressPrefix);
while (!cancellationToken.IsCancellationRequested)
{
random.GetBytes(seedBytes);
var hasher = Blake2b.CreateIncrementalHasher(32);
hasher.Update(seedBytes);
hasher.Update(indexBytes);
hasher.Finish(secretBytes);
Chaos.NaCl.Internal.Ed25519Ref10.Ed25519Operations.crypto_public_key(
secretBytes, 0, publicKeyBytes, 0, tmp);
Blake2b.ComputeAndWriteHash(5, publicKeyBytes, checksumBytes);
Reverse(checksumBytes);
NanoBase32(publicKeyBytes, ref addressBuffer);
NanoBase32(checksumBytes, ref addressBuffer);
bool isMatched = false;
if (canMatchPrefix)
{
isMatched = addressBuffer.StartsWith(prefix1) || addressBuffer.StartsWith(prefix2);
}
if (!isMatched && canMatchSuffix)
{
isMatched = addressBuffer.EndsWith(suffix1);
}
if (isMatched)
{
var address = addressBuffer.ToString();
if (resultCallback != null)
{
resultCallback.Invoke(HexUtils.HexFromByteArray(seedBytes), address);
}
else
{
FoundSeed = HexUtils.HexFromByteArray(seedBytes);
FoundAddress = address;
break;
}
}
++attempts;
addressBuffer.Length = AddressPrefix.Length;
}
}
public override void Run(object?arg)
{
string prefix1 = string.Concat(AddressPrefix, "3", keyword);
string prefix2 = string.Concat(AddressPrefix, "1", keyword);
string suffix1 = keyword;
int workSize = this.workSize;
byte[] bigPublicKeyBytes = new byte[32 * workSize];
byte[] bigChecksumBytes = new byte[5 * workSize];
byte[] bigSeedBytes = new byte[31 + workSize];
AddressBuffer addressBuffer = new(AddressPrefix.Length + 60);
bool canMatchPrefix = this.canMatchPrefix;
bool canMatchSuffix = this.canMatchSuffix;
CancellationToken cancellationToken = this.cancellationToken;
GCHandle hPublicKey = GCHandle.Alloc(bigPublicKeyBytes, GCHandleType.Pinned);
GCHandle hChecksum = GCHandle.Alloc(bigChecksumBytes, GCHandleType.Pinned);
GCHandle hSeed = GCHandle.Alloc(bigSeedBytes, GCHandleType.Pinned);
ComputePlatform platform = ComputePlatform.Platforms[platformIndex];
ComputeContext context = new(
ComputeDeviceTypes.Gpu,
new ComputeContextPropertyList(platform),
null, IntPtr.Zero);
ComputeProgram program = new(context, new string[]
{
OpenCl.Blake2b,
OpenCl.Curve25519Constants,
OpenCl.Curve25519Constants2,
OpenCl.Curve25519,
OpenCl.Entry,
});
program.Build(null, null, null, IntPtr.Zero);
ComputeKernel kernel = program.CreateKernel("generate_pubkey");
ComputeCommandQueue queue = new(context, context.Devices[0], ComputeCommandQueueFlags.None);
ComputeBuffer <byte> argPublicKey = new(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, bigPublicKeyBytes);
ComputeBuffer <byte> argChecksum = new(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, bigChecksumBytes);
ComputeBuffer <byte> argSeed = new(context, ComputeMemoryFlags.ReadWrite | ComputeMemoryFlags.UseHostPointer, bigSeedBytes);
addressBuffer.Append(AddressPrefix);
while (!cancellationToken.IsCancellationRequested)
{
random.GetBytes(bigSeedBytes);
queue.Write(argSeed, true, 0, bigSeedBytes.Length, hSeed.AddrOfPinnedObject(), null);
kernel.SetMemoryArgument(0, argPublicKey);
kernel.SetMemoryArgument(1, argChecksum);
kernel.SetMemoryArgument(2, argSeed);
queue.Execute(kernel, null, new long[] { workSize }, null, null);
queue.Read(argPublicKey, true, 0, bigPublicKeyBytes.Length, hPublicKey.AddrOfPinnedObject(), null);
queue.Read(argChecksum, true, 0, bigChecksumBytes.Length, hChecksum.AddrOfPinnedObject(), null);
queue.Finish();
string foundSeed = null;
for (int i = 0; i < workSize; ++i)
{
ArraySegment <byte> seed = new(bigSeedBytes, i, 32);
ArraySegment <byte> publicKey = new(bigPublicKeyBytes, i * 32, 32);
ArraySegment <byte> checksum = new(bigChecksumBytes, i * 5, 5);
Reverse(checksum);
NanoBase32(publicKey, ref addressBuffer);
NanoBase32(checksum, ref addressBuffer);
bool isMatched = false;
if (canMatchPrefix)
{
isMatched = addressBuffer.StartsWith(prefix1) || addressBuffer.StartsWith(prefix2);
}
if (!isMatched && canMatchSuffix)
{
isMatched = addressBuffer.EndsWith(suffix1);
}
if (isMatched)
{
var address = addressBuffer.ToString();
if (resultCallback != null)
{
resultCallback.Invoke(HexUtils.HexFromByteArray(seed), address);
}
else
{
foundSeed = HexUtils.HexFromByteArray(seed);
FoundSeed = foundSeed;
FoundAddress = address;
attempts += i;
break;
}
}
addressBuffer.Length = AddressPrefix.Length;
}
if (foundSeed != null)
{
break;
}
attempts += workSize;
}
argPublicKey.Dispose();
argChecksum.Dispose();
argSeed.Dispose();
hPublicKey.Free();
hChecksum.Free();
hSeed.Free();
}
