[WIP, 0.17] Signed blocks #452
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this branch is in the wrong repo, oh well |
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All tests are complete and passing! |
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closing in favor of #478 |
stevenroose
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Dec 19, 2018
ff32b17 elements style genesis block commits to signblockscript in CommitToArguments (Gregory Sanders) 3169d38 added blocksign functional test (Gregory Sanders) d78f076 Signed blocks by default for custom chains (Gregory Sanders) 8723deb RPC support for signed blocks, compact blocks infrastructure (Gregory Sanders) 5877da8 Expose signed block information over RPC when active (Gregory Sanders) 0d7e0f9 Miner support for signed blocks (Gregory Sanders) 0e47322 Expose signed blocks in validation.cpp (Gregory Sanders) cd4e553 CProof (re)setting and validation helper functions (Gregory Sanders) 2a3dcde Set genesis block CProof to signblockscript if signed blocks active (Gregory Sanders) 6ad13bb Signed blocks have work of 1 each (Gregory Sanders) 6856beb Have chainstate store CProof for each block header (Gregory Sanders) 60f7062 Define block signatures, active IFF g_signed_blocks active (Gregory Sanders) f7c5cf7 Add not yet enforced chainparam arguments for signed blocks (Gregory Sanders) 7bc578a Add SimpleSignatureChecker, SCRIPT_NO_SIGHASH_BYTE validation flag (Gregory Sanders) 6c91446 Expose check_pow for compact blocks, helper to get available Tx list (Gregory Sanders) Pull request description: Squashed and rebased version of: #452 on my own repo. Adds `-con_signed_blocks` which enables signed block mode with `-signblockscript` defining the encumbrance, which replaces pow-based data in block headers with that script. `-con_max_block_sig_size` is a novel argument compared to `elements-0.14.1`, which caps the total size of the signature in the block header. This avoids all number of DoS concerns and simplifies the miner code. This also creates signed block RPCs, as well as compact block RPCs for blocksigner use. Tree-SHA512: af2624ff8d456673c40fba283f3cdbd2559b528b87ff9b10335f5fb893ff7d7b286655c9856bb23f84b5722c7ad0091e77208c89c18a6f71b1cbd18076841071
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Need to do history cleanup, and more sanity checks for rpc calls that use signed blocks.