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Update pow一致性算法.md #27

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4 changes: 3 additions & 1 deletion pow一致性算法.md
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
在CPU挖矿部分，CpuAgent的mine函数，执行挖矿操作的时候调用了self.engine.Seal函数。这里的engine是就是共识引擎。Seal为其中很重要的一个接口。它实现了nonce值的寻找和hash的计算。并且该函数是保证共识并且不能伪造的一个重要的函数。
再PoW共识算法中，Seal函数实现了工作证明。该部分源码在consensus/ethhash下。
### 共识引擎接口
```
type Engine interface {
// 获取区块挖掘者, 即coinbase
Author(header *types.Header) (common.Address, error)
Expand Down Expand Up @@ -39,6 +40,7 @@ type Engine interface {
// APIs 返回由共识引擎提供的RPC APIs
APIs(chain ChainReader) []rpc.API
}
```
### ethhash 实现分析
#### ethhash 结构体
```
Expand Down Expand Up @@ -621,4 +623,4 @@ func hashimotoLight(size uint64, cache []uint32, hash []byte, nonce uint64) ([]b
}
return hashimoto(hash, nonce, size, lookup)
}
```
```