Function mlKemExportKey

lib/internal/crypto/ml_kem.js:82–115

(key, format)

}

function mlKemExportKey(key, format) {
  try {
    const handle = getCryptoKeyHandle(key);
    switch (format) {
      case kWebCryptoKeyFormatRaw: {
        return TypedArrayPrototypeGetBuffer(
          getCryptoKeyType(key) === 'private' ? handle.rawSeed() : handle.rawPublicKey());
      }
      case kWebCryptoKeyFormatSPKI: {
        return TypedArrayPrototypeGetBuffer(
          handle.export(kKeyFormatDER, kWebCryptoKeyFormatSPKI));
      }
      case kWebCryptoKeyFormatPKCS8: {
        const pkcs8 = handle.export(
          kKeyFormatDER, kWebCryptoKeyFormatPKCS8, null, null);
        // Edge case only possible when user creates a seedless KeyObject
        // first and converts it with KeyObject.prototype.toCryptoKey.
        // 86 = 22 bytes of PKCS#8 ASN.1 + 64-byte seed.
        if (TypedArrayPrototypeGetByteLength(pkcs8) !== 86) {
          throw lazyDOMException(
            'The operation failed for an operation-specific reason',
            { name: 'OperationError' });
        }
        return TypedArrayPrototypeGetBuffer(pkcs8);
      }
      default:
        return undefined;
    }
  } catch (err) {
    throw lazyDOMException(
      'The operation failed for an operation-specific reason',
      { name: 'OperationError', cause: err });
  }
}

function mlKemImportKey(
  format,