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How to use the @polkadot/util-crypto.keccakAsHex function in @polkadot/util-crypto

To help you get started, we’ve selected a few @polkadot/util-crypto examples, based on popular ways it is used in public projects.

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polkadot-js / apps / packages / app-claims / src / util.ts View on Github

export function addrToChecksum (_address: string): string {
  const address = _address.toLowerCase();
  const hash = keccakAsHex(address.substr(2)).substr(2);
  let result = '0x';

  for (let n = 0; n &lt; 40; n++) {
    result = `${result}${
      parseInt(hash[n], 16) &gt; 7
        ? address[n + 2].toUpperCase()
        : address[n + 2]
    }`;
  }

  return result;
}

polkadot-js / apps / packages / app-claims / src / util.ts View on Github

export function publicToAddr (publicKey: Uint8Array): string {
  return addrToChecksum(`0x${keccakAsHex(publicKey).slice(-40)}`);
}