mpt source pure

 1var (
 2	ErrEmptyProof       = errors.New("mpt: empty proof")
 3	ErrInvalidRoot      = errors.New("mpt: invalid root length")
 4	ErrUnexpectedNode   = errors.New("mpt: unexpected node shape")
 5	ErrInvalidReference = errors.New("mpt: invalid child reference")
 6	ErrPathMismatch     = errors.New("mpt: path mismatch")
 7	ErrValueMismatch    = errors.New("mpt: value mismatch")
 8	ErrKeyPresent       = errors.New("mpt: key present")
 9	ErrKeyAbsent        = errors.New("mpt: key absent")
10	ErrUnusedProof      = errors.New("mpt: unused proof nodes")
11)

source

1func EmptyRoot() [32]byte

source

EmptyRoot is keccak256(rlp("")), the root of an empty Ethereum MPT.

1func Verify(root []byte, key []byte, value []byte, proof [][]byte) error

source

Verify verifies an Ethereum Merkle Patricia Trie existence proof.

root is the 32-byte trie root. key is expanded to nibbles and matched against the proof path. proof contains raw RLP-encoded nodes, ordered from root to leaf. value is the RLP string payload stored at the leaf or branch value slot.

1func VerifyAbsence(root []byte, key []byte, proof [][]byte) error

source

VerifyAbsence verifies that key is absent from the trie under root.

bytes stdlib
crypto/keccak256 stdlib
errors stdlib
gno.land/p/onbloc/encoding/rlp package

mpt source pure

Variables 1

var ErrEmptyProof, ErrInvalidRoot, ErrUnexpectedNode, ErrInvalidReference, ErrPathMismatch, ErrValueMismatch, ErrKeyPresent, ErrKeyAbsent, ErrUnusedProof

Functions 3

func EmptyRoot

func Verify

func VerifyAbsence

Imports 4

Source Files 2