convertTmrAccesses method

SealdConvertTmrAccessesResult convertTmrAccesses(String tmrJWT, Uint8List overEncryptionKey, { SealdTmrAccessesConvertFilters? conversionFilters, bool deleteOnConvert = true, })

Convert all TMR Accesses addressed to a given auth factor and matching specified filters to classic message keys. All TMR accesses matching the specified filters must have been encrypted with the same overEncryptionKey.

tmrJWT - The TMR JWT. overEncryptionKey - The TMR over-encryption key. This MUST be a cryptographically random buffer of 64 bytes. conversionFilters - Convert tmr accesses filters. If multiple TMR Accesses with the auth factor, filter out the unwanted ones. deleteOnConvert - Whether or not to delete the TMR access after conversion. Returns the retrieved SealdConvertTmrAccessesResult instance.

Implementation

SealdConvertTmrAccessesResult convertTmrAccesses(
    String tmrJWT, Uint8List overEncryptionKey,
    {SealdTmrAccessesConvertFilters? conversionFilters,
    bool deleteOnConvert = true}) {
  if (_closed) {
    throw SealdException(
        code: "INSTANCE_CLOSED",
        id: "FLUTTER_INSTANCE_CLOSED",
        description: "Instance already closed.");
  }
  final Pointer<Utf8> nativeTmrJWT = tmrJWT.toNativeUtf8();
  final int deleteOnConvertInt = deleteOnConvert ? 1 : 0;
  final Pointer<NativeSealdTmrAccessesConvertFilters> nativeFilters =
      conversionFilters?._toC() ?? nullptr;
  // Dart FFI forces us to copy the data from Uint8List to a newly allocated Pointer<Uint8>
  final Pointer<Uint8> nativeOverEncryptionKey =
      calloc<Uint8>(overEncryptionKey.length);
  final pointerListOverEncryptionKey =
      nativeOverEncryptionKey.asTypedList(overEncryptionKey.length);
  pointerListOverEncryptionKey.setAll(0, overEncryptionKey);

  final Pointer<Pointer<NativeSealdConvertTmrAccessesResult>> result =
      calloc<Pointer<NativeSealdConvertTmrAccessesResult>>();
  final Pointer<Pointer<NativeSealdError>> err =
      calloc<Pointer<NativeSealdError>>();

  final int resultCode = _bindings.SealdSdk_ConvertTmrAccesses(
      _ptr.pointer(),
      nativeTmrJWT,
      nativeOverEncryptionKey,
      overEncryptionKey.length,
      nativeFilters,
      deleteOnConvertInt,
      result,
      err);

  calloc.free(nativeOverEncryptionKey);
  _bindings.SealdTmrAccessesConvertFilters_Free(nativeFilters);

  if (resultCode != 0) {
    calloc.free(result);
    throw SealdException._fromCPtr(err);
  } else {
    final SealdConvertTmrAccessesResult conversionResult =
        SealdConvertTmrAccessesResult._fromC(result.value);
    calloc.free(result);
    calloc.free(err);
    return conversionResult;
  }
}