Function tapTweakHash

src/btc/btc-ecc.ts:42–47

(pubKey: Buffer, h: Buffer | undefined)

}

export function tapTweakHash(pubKey: Buffer, h: Buffer | undefined): Buffer {
  return bitcoin.crypto.taggedHash(
    "TapTweak",
    Buffer.concat(h ? [pubKey, h] : [pubKey])
  );
}

export function toXOnly(pubkey: Buffer): Buffer {
  return Buffer.from(pubkey.subarray(1, 33));