hash

Documentation

Index

• Variables
• func DeriveSha(list DerivableList) (h types.Hash)
• func Hash(data []byte) [32]byte
• func PrefixedRlpHash(prefix byte, x interface{}) (h types.Hash)
• func RlpHash(x interface{}) (h types.Hash)
• type DerivableList

Variables

var (
	// NilHash sum(nil)
	NilHash = types.HexToHash("0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470")
	// EmptyUncleHash rlpHash([]*Header(nil))
	EmptyUncleHash = types.HexToHash("0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347")
)

var HasherPool = sync.Pool{
	New: func() interface{} { return sha3.NewLegacyKeccak256() },
}

hasherPool holds LegacyKeccak256 hashers for rlpHash.

Functions

func DeriveSha

func DeriveSha(list DerivableList) (h types.Hash)

DeriveSha creates the tree hashes of transactions and receipts in a block header.

func Hash

func Hash(data []byte) [32]byte

Hash defines a function that returns the sha256 checksum of the data passed in. https://github.com/ethereum/consensus-specs/blob/v0.9.3/specs/core/0_beacon-chain.md#hash

func PrefixedRlpHash

func PrefixedRlpHash(prefix byte, x interface{}) (h types.Hash)

PrefixedRlpHash writes the prefix into the hasher before rlp-encoding x. It's used for typed transactions.

func RlpHash

func RlpHash(x interface{}) (h types.Hash)

Types

type DerivableList

type DerivableList interface {
	Len() int
	EncodeIndex(int, *bytes.Buffer)
}

DerivableList is the input to DeriveSha. It is implemented by the 'Transactions' and 'Receipts' types. This is internal, do not use these methods.