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28 lines
522 B
Go
28 lines
522 B
Go
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package utils
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import (
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"encoding/hex"
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"errors"
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"strings"
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"github.com/btcsuite/btcutil/bech32"
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)
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// DecodeNpub decodes a Bech32 encoded npub to its corresponding pubkey
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func DecodeNpub(npub string) (string, error) {
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hrp, data, err := bech32.Decode(npub)
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if err != nil {
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return "", err
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}
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if hrp != "npub" {
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return "", errors.New("invalid hrp")
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}
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decodedData, err := bech32.ConvertBits(data, 5, 8, false)
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if err != nil {
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return "", err
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}
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return strings.ToLower(hex.EncodeToString(decodedData)), nil
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}
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