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2016-02-12Merge #7184: Implement SequenceLocks functions for BIP 68Wladimir J. van der Laan
b043c4b fix sdaftuar's nits again (Alex Morcos) a51c79b Bug fix to RPC test (Alex Morcos) da6ad5f Add RPC test exercising BIP68 (mempool only) (Suhas Daftuar) c6c2f0f Implement SequenceLocks functions (Alex Morcos)
2016-02-10Implement SequenceLocks functionsAlex Morcos
SequenceLocks functions are used to evaluate sequence lock times or heights per BIP 68. The majority of this code is copied from maaku in #6312 Further credit: btcdrak, sipa, NicolasDorier
2016-01-05Add missing copyright headersMarcoFalke
2015-12-13Bump copyright headers to 2015MarcoFalke
2015-11-27Switch blocks to a constant-space Merkle root/branch algorithm.Pieter Wuille
This switches the Merkle tree logic for blocks to one that runs in constant (small) space. The old code is moved to tests, and a new test is added that for various combinations of block sizes, transaction positions to compute a branch for, and mutations: * Verifies that the old code and new code agree for the Merkle root. * Verifies that the old code and new code agree for the Merkle branch. * Verifies that the computed Merkle branch is valid. * Verifies that mutations don't change the Merkle root. * Verifies that mutations are correctly detected.
2015-11-27Add merkle.{h,cpp}, generic merkle root/branch algorithmPieter Wuille
2015-11-12Merge pull request #6931Pieter Wuille
33c90cf Make skipping BIP30 check chain agnostic (Alex Morcos) 06d81ad Skip BIP30 check after BIP34 activation (Alex Morcos)
2015-11-03Restore MedianTimePast for locktime.Gregory Maxwell
Revert "Revert "Add rules--presently disabled--for using GetMedianTimePast as endpoint for lock-time calculations"" This reverts commit 40cd32e835092c3158175511da5193193ec54939. After careful analysis it was determined that the change was, in fact, safe and several people were suffering momentary confusion about locktime semantics.
2015-11-02Make skipping BIP30 check chain agnosticAlex Morcos
2015-11-01Revert "Add rules--presently disabled--for using GetMedianTimePast as ↵Gregory Maxwell
endpoint for lock-time calculations" This reverts commit 9d55050773d57c0e12005e524f2e54d9e622c6e2. As noted by Luke-Jr, under some conditions this will accept transactions which are invalid by the network rules. This happens when the current block time is head of the median time past and a transaction's locktime is in the middle. This could be addressed by changing the rule to MAX(this_block_time, MTP+offset) but this solution and the particular offset used deserve some consideration.
2015-10-23Add rules--presently disabled--for using GetMedianTimePast as endpoint for ↵Mark Friedenbach
lock-time calculations The lock-time code currently uses CBlock::nTime as the cutoff point for time based locked transactions. This has the unfortunate outcome of creating a perverse incentive for miners to lie about the time of a block in order to collect more fees by including transactions that by wall clock determination have not yet matured. By using CBlockIndex::GetMedianTimePast from the prior block instead, the self-interested miner no longer gains from generating blocks with fraudulent timestamps. Users can compensate for this change by simply adding an hour (3600 seconds) to their time-based lock times. If enforced, this would be a soft-fork change. This commit only adds the functionality on an unexecuted code path, without changing the behaviour of Bitcoin Core.
2015-10-19Added fPowNoRetargeting field to Consensus::Params that disables nBits ↵Eric Lombrozo
recalculation.
2015-08-06Add debug message to CValidationState for optional extra informationWladimir J. van der Laan
Add a field `strDebugMessage` which can be passed to DoS or Invalid, and queried using GetDebugMessage() to add extra troubleshooting information to the validation state.
2015-06-30Add absurdly high fee message to validation state (for RPC propagation)Shaul Kfir
2015-06-26Merge pull request #6124Wladimir J. van der Laan
ffd75ad Enable CHECKLOCKTIMEVERIFY as a standard script verify flag (Peter Todd) bc60b2b Replace NOP2 with CHECKLOCKTIMEVERIFY (BIP65) (Peter Todd) 48e9c57 Move LOCKTIME_THRESHOLD to src/script/script.h (Peter Todd) 99088d6 Make CScriptNum() take nMaxNumSize as an argument (Peter Todd)
2015-06-04use const references where appropriatePhilip Kaufmann
2015-05-15Consensus: MOVEONLY: Move CValidationState from main consensus/validationjtimon
2015-05-09Move LOCKTIME_THRESHOLD to src/script/script.hPeter Todd
Will now be needed by CHECKLOCKTIMEVERIFY code.
2015-04-20Consensus: Create consensus/consensus.h with some constantsjtimon
2015-04-20ensure consistent header comment naming conventionsPhilip Kaufmann
- BITCOIN_FOLDER_SUBFOLDER_FILENAME_H
2015-04-10consensus: don't use arith_uint256 in consensus.hCory Fields
Requiring arith_uint256 at such a base level is not good for modularity.
2015-03-25Consensus: Refactor: Introduce Consensus::Params classJorge Timón