Function getPublicKeyImpl

lib/internal/crypto/webcrypto.js:1333–1347

(key, keyUsages)

}

function getPublicKeyImpl(key, keyUsages) {
  emitExperimentalWarning('The getPublicKey Web Crypto API method');
  const prefix = prepareSubtleMethod(this, 'getPublicKey', arguments.length, 2);
  let i = 0;
  key = convertSubtleArgument(prefix, 'CryptoKey', key, i++);
  const usages = convertSubtleArgument(
    prefix, 'sequence<KeyUsage>', keyUsages, i++);

  const type = getCryptoKeyType(key);
  if (type !== 'private')
    throw lazyDOMException('key must be a private key',
                           type === 'secret' ? 'NotSupportedError' : 'InvalidAccessError');

  return toPublicCryptoKey(key, usages);
}

function encapsulateBits(encapsulationAlgorithm, encapsulationKey) {
  return callSubtleCryptoMethod(encapsulateBitsImpl, this, arguments);