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| author | Sonic <sonic@dexon.org> | 2019-01-18 11:55:51 +0800 |
|---|---|---|
| committer | Wei-Ning Huang <w@byzantine-lab.io> | 2019-06-12 17:27:21 +0800 |
| commit | 1c01b079c42bf410997b800c8e97b699e3ce0a93 (patch) | |
| tree | 00626fcfc3bd1a4f63fd23efeb7c36f5498cbc9a /core/types.go | |
| parent | 65045b14287ee4f789a491ae542a58f1f7d559b6 (diff) | |
| download | go-tangerine-1c01b079c42bf410997b800c8e97b699e3ce0a93.tar.gz go-tangerine-1c01b079c42bf410997b800c8e97b699e3ce0a93.tar.zst go-tangerine-1c01b079c42bf410997b800c8e97b699e3ce0a93.zip | |
core, dex: use block hash as witness data (#160)
Using only state root and receipt root as witness data can not protect
other fields in block header, ex: bloom, difficulty, gas limit, gas
used...
So that everyone can manipulate these fields to create as many valid blocks
at the same height as he want. Although this will not effect the state,
one can spam us when syncing.
Using block hash as witness data can solve this.
Diffstat (limited to 'core/types.go')
| -rw-r--r-- | core/types.go | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/core/types.go b/core/types.go index 327031b01..04a787b1e 100644 --- a/core/types.go +++ b/core/types.go @@ -17,6 +17,7 @@ package core import ( + "github.com/dexon-foundation/dexon/common" "github.com/dexon-foundation/dexon/core/state" "github.com/dexon-foundation/dexon/core/types" "github.com/dexon-foundation/dexon/core/vm" @@ -35,7 +36,7 @@ type Validator interface { ValidateState(block, parent *types.Block, state *state.StateDB, receipts types.Receipts, usedGas uint64) error // ValidateWitnessData validates the given witness result. - ValidateWitnessData(height uint64, data types.WitnessData) error + ValidateWitnessData(height uint64, data common.Hash) error } // Processor is an interface for processing blocks using a given initial state. |