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19 lines
517 B
Go
19 lines
517 B
Go
package utils
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import (
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libcommon "github.com/ledgerwatch/erigon-lib/common"
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)
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// Check if leaf at index verifies against the Merkle root and branch
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func IsValidMerkleBranch(leaf libcommon.Hash, branch []libcommon.Hash, depth uint64, index uint64, root [32]byte) bool {
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value := leaf
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for i := uint64(0); i < depth; i++ {
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if (index / PowerOf2(i) % 2) == 1 {
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value = Keccak256(append(branch[i][:], value[:]...))
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} else {
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value = Keccak256(append(value[:], branch[i][:]...))
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}
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}
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return value == root
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}
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