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trie: use stateless keccak

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Piotr Mikołajczyk 2025-11-18 11:25:39 +01:00
parent 1b0bf9608f
commit b406245737
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GPG key ID: 2E4C2AAD5E71D22D
1 changed files with 2 additions and 22 deletions
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24
trie/hasher.go
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@ -28,7 +28,6 @@ import (
// hasher is a type used for the trie Hash operation. A hasher has some // hasher is a type used for the trie Hash operation. A hasher has some
// internal preallocated temp space // internal preallocated temp space
type hasher struct { type hasher struct {
sha crypto.KeccakState
tmp []byte tmp []byte
encbuf rlp.EncoderBuffer encbuf rlp.EncoderBuffer
parallel bool // Whether to use parallel threads when hashing parallel bool // Whether to use parallel threads when hashing
@ -39,7 +38,6 @@ var hasherPool = sync.Pool{
New: func() any { New: func() any {
return &hasher{ return &hasher{
tmp: make([]byte, 0, 550), // cap is as large as a full fullNode. tmp: make([]byte, 0, 550), // cap is as large as a full fullNode.
sha: crypto.NewKeccakState(),
encbuf: rlp.NewEncoderBuffer(nil), encbuf: rlp.NewEncoderBuffer(nil),
} }
}, },
@ -74,7 +72,7 @@ func (h *hasher) hash(n node, force bool) []byte {
copy(buf, enc) copy(buf, enc)
return buf return buf
} }
hash := h.hashData(enc) hash := crypto.Keccak256(enc)
n.flags.hash = hash n.flags.hash = hash
return hash return hash
@ -89,7 +87,7 @@ func (h *hasher) hash(n node, force bool) []byte {
copy(buf, enc) copy(buf, enc)
return buf return buf
} }
hash := h.hashData(enc) hash := crypto.Keccak256(enc)
n.flags.hash = hash n.flags.hash = hash
return hash return hash
@ -186,24 +184,6 @@ func (h *hasher) encodedBytes() []byte {
return h.tmp return h.tmp
} }
// hashData hashes the provided data. It is safe to modify the returned slice after
// the function returns.
func (h *hasher) hashData(data []byte) []byte {
n := make([]byte, 32)
h.sha.Reset()
h.sha.Write(data)
h.sha.Read(n)
return n
}
// hashDataTo hashes the provided data to the given destination buffer. The caller
// must ensure that the dst buffer is of appropriate size.
func (h *hasher) hashDataTo(dst, data []byte) {
h.sha.Reset()
h.sha.Write(data)
h.sha.Read(dst)
}
// proofHash is used to construct trie proofs, returning the rlp-encoded node blobs. // proofHash is used to construct trie proofs, returning the rlp-encoded node blobs.
// Note, only resolved node (shortNode or fullNode) is expected for proofing. // Note, only resolved node (shortNode or fullNode) is expected for proofing.
// //