32 lines
847 B
Go
32 lines
847 B
Go
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package electrum
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import (
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"crypto/sha256"
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"encoding/hex"
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"github.com/btcsuite/btcd/btcutil"
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"github.com/btcsuite/btcd/chaincfg"
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"github.com/btcsuite/btcd/txscript"
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)
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// AddressToElectrumScriptHash converts valid bitcoin address to electrum scriptHash sha256 encoded, reversed and encoded in hex
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// https://electrumx.readthedocs.io/en/latest/protocol-basics.html#script-hashes
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func AddressToElectrumScriptHash(addressStr string) (string, error) {
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address, err := btcutil.DecodeAddress(addressStr, &chaincfg.MainNetParams)
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if err != nil {
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return "", err
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}
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script, err := txscript.PayToAddrScript(address)
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if err != nil {
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return "", err
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}
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hashSum := sha256.Sum256(script)
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for i, j := 0, len(hashSum)-1; i < j; i, j = i+1, j-1 {
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hashSum[i], hashSum[j] = hashSum[j], hashSum[i]
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}
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return hex.EncodeToString(hashSum[:]), nil
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}
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