Uint64List not supported in web mode

[redDwarf03]

Hello

i have this issue in web mode :

"Error: Unsupported operation: Uint64List not supported on the web.
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 266:49  throw_
dart-sdk/lib/_internal/js_dev_runtime/patch/typed_data_patch.dart 115:5       new
packages/pointycastle/block/modes/gcm.dart 81:36                              [_computeInitialCounter]
packages/pointycastle/block/modes/gcm.dart 61:16                              prepare
packages/pointycastle/src/impl/base_aead_block_cipher.dart 217:5              reset
packages/pointycastle/block/modes/gcm.dart 47:11                              reset
packages/pointycastle/src/impl/base_aead_block_cipher.dart 117:5              init
packages/pointycastle/block/modes/gcm.dart 40:11                              init
packages/crypto_keys/src/symmetric_operator.dart 71:16                        encrypt
packages/archethic_lib_dart/src/utils/crypto.dart 673:16                      aesAuthEncrypt
packages/archethic_lib_dart/src/utils/crypto.dart 400:11                      ecEncrypt
packages/archethic_lib_dart/src/services/api_service.dart 483:46              newKeychainTransaction
packages/aewallet/util/keychain_util.dart 98:54                               createKeyChain
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54            runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 123:5            _async
packages/aewallet/util/keychain_util.dart 70:30                               createKeyChain
packages/aewallet/ui/views/intro/intro_backup_confirm.dart 547:28             createKeychain
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 45:50            <fn>
dart-sdk/lib/async/zone.dart 1653:54                                          runUnary
dart-sdk/lib/async/future_impl.dart 147:18                                    handleValue
dart-sdk/lib/async/future_impl.dart 766:44                                    handleValueCallback
dart-sdk/lib/async/future_impl.dart 795:13                                    _propagateToListeners
dart-sdk/lib/async/future_impl.dart 566:5                                     [_completeWithValue]
dart-sdk/lib/async/future_impl.dart 639:7                                     callback
dart-sdk/lib/async/schedule_microtask.dart 40:11                              _microtaskLoop
dart-sdk/lib/async/schedule_microtask.dart 49:5                               _startMicrotaskLoop
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 166:15           <fn>
"

any idea ? Thx

[redDwarf03]

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[mwcw]

JS has no native intger support only IEEE-754 floating point numbers and the dart team do not provide an analog for that during transpilation process.

In this case IEEE-754 can only represent a subset of unsigned 64 bit integers.

[richardheap]

There seems to be a simple fix. Change this line var length = Uint8List.view((Uint64List(2)..[0] = iv.length * 8).buffer);

to var length = Uint8List.view((Uint32List(4)..[0] = iv.length * 8).buffer);

Which would seem to be equivalent for all practical values of IV length.

[redDwarf03]

https://stackoverflow.com/questions/74523047/uint64list-not-supported-on-flutter-web/74526125#74526125

[redDwarf03]

@mwcw, hello. With @richardheap and stackoverflow answers, is it possible to reopen this issue please ?

[richardheap]

@redDwarf03 Please make the changes yourself, test and submit a PR.

[redDwarf03]

@richardheap . A PR is available.