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Security fix for spark on devnet and testnet #1944

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Security fix for spark on devnet and testnet #1944

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346cf6b
Devnet HF block numbers for sigma vulnerability fix
psolstice Sep 2, 2026
136cd9d
Testnet H1/H2 HFs
psolstice Sep 3, 2026
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8 changes: 4 additions & 4 deletions src/chainparams.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -747,8 +747,8 @@ class CTestNetParams : public CChainParams {
consensus.nLelantusStartBlock = ZC_LELANTUS_TESTNET_STARTING_BLOCK;
consensus.nLelantusFixesStartBlock = ZC_LELANTUS_TESTNET_FIXES_START_BLOCK;
consensus.nSparkStartBlock = SPARK_TESTNET_START_BLOCK;
consensus.nSparkSingleInputStartBlock = INT_MAX;
consensus.nSparkChaumV2StartBlock = INT_MAX;
consensus.nSparkSingleInputStartBlock = 210700; // H1
consensus.nSparkChaumV2StartBlock = 210800; // H2: 100 blocks after H1
consensus.nLelantusGracefulPeriod = LELANTUS_TESTNET_GRACEFUL_PERIOD;
consensus.nSigmaEndBlock = ZC_SIGMA_TESTNET_END_BLOCK;
consensus.nZerocoinV2MintMempoolGracefulPeriod = ZC_V2_MINT_TESTNET_GRACEFUL_MEMPOOL_PERIOD;
Expand Down Expand Up @@ -1020,8 +1020,8 @@ class CDevNetParams : public CChainParams {
consensus.nLelantusFixesStartBlock = 1;

consensus.nSparkStartBlock = 1500;
consensus.nSparkSingleInputStartBlock = INT_MAX;
consensus.nSparkChaumV2StartBlock = INT_MAX;
consensus.nSparkSingleInputStartBlock = 3600; // H1: ~87 blocks / ~7h15m after devnet height 3513
consensus.nSparkChaumV2StartBlock = 3700; // H2: ~187 blocks / ~15h35m after devnet height 3513
consensus.nLelantusGracefulPeriod = 6000;
consensus.nSigmaEndBlock = 3600;
consensus.nMaxSigmaInputPerBlock = ZC_SIGMA_INPUT_LIMIT_PER_BLOCK;
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