public static List <CTKey> GetKeyFromBlockchain(uint start, int count, UInt256 assetID, out List <MixRingCTKey> mixRingIndex)
{
List <CTKey> ret = new List <CTKey>();
mixRingIndex = new List <MixRingCTKey>();
uint endNumber = 0;
if ((int)Blockchain.Default.Height - 1 < 0)
{
endNumber = 0;
}
else
{
endNumber = Blockchain.Default.Height - 1;
}
while (ret.Count < count)
{
if (Blockchain.Default != null)
{
for (uint i = endNumber; i >= start; i--)
{
try
{
Block block = Blockchain.Default.GetBlock(i);
foreach (Transaction tx in block.Transactions)
{
if (tx is RingConfidentialTransaction rtx)
{
for (byte j = 0; j < rtx.RingCTSig.Count; j++)
{
if (assetID == Blockchain.GoverningToken.Hash || assetID == Blockchain.UtilityToken.Hash)
{
if (rtx.RingCTSig[j].AssetID == assetID)
{
for (byte k = 0; k < rtx.RingCTSig[j].outPK.Count; k++)
{
CTKey key = rtx.RingCTSig[j].outPK[k];
MixRingCTKey keyIndex = new MixRingCTKey(rtx.Hash, j, k);
ret.Add(key);
mixRingIndex.Add(keyIndex);
}
}
}
else if (rtx.RingCTSig[j].AssetID == Blockchain.StealthNormalHash)
{
AssetState asset = Blockchain.Default.GetAssetState(assetID);
if (asset.AssetType == AssetType.StealthToken)
{
for (byte k = 0; k < rtx.RingCTSig[j].outPK.Count; k++)
{
CTKey key = rtx.RingCTSig[j].outPK[k];
MixRingCTKey keyIndex = new MixRingCTKey(rtx.Hash, j, k);
ret.Add(key);
mixRingIndex.Add(keyIndex);
}
}
}
}
}
}
}
catch (Exception ex)
{
if ((int)Blockchain.Default.Height - 1 < 0)
{
endNumber = 0;
}
else
{
endNumber = Blockchain.Default.Height - 1;
}
break;
}
if (ret.Count >= count)
{
if ((int)Blockchain.Default.Height - 1 < 0)
{
endNumber = 0;
}
else
{
endNumber = Blockchain.Default.Height - 1;
}
break;
}
}
}
else
{
CTKey key = new CTKey(new ECPoint(), new ECPoint());
MixRingCTKey keyIndex = new MixRingCTKey(new UInt256(new byte[32]), 0xff, 0xff);
ret.Add(key);
mixRingIndex.Add(keyIndex);
}
}
return(ret);
}
