feat(cat-voices): enable browser crypto api in wasm (#3640)

* chore: enable browser crypto api in wasm

* chore: use official dart cryptography

* chore: workaround for browser crypto api

* chore: docs

Author: dt-iohk

catalyst_voices/packages/internal/catalyst_voices_shared/lib/src/crypto/local_crypto_service.dart

@@ -3,7 +3,13 @@ import 'dart:math';
 
 import 'package:catalyst_voices_models/catalyst_voices_models.dart';
 import 'package:catalyst_voices_shared/catalyst_voices_shared.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
+// TODO(dt-iohk): It will no longer be necessary to import this after that PR is merged:
+// https://github.com/emz-hanauer/dart-cryptography/pull/17
+// ignore: implementation_imports
+import 'package:cryptography_plus/src/browser/browser_cryptography_when_not_browser.dart'
+    if (dart.library.js_interop) 'package:cryptography_plus/src/browser/browser_cryptography.dart'
+    as br;
 import 'package:flutter/foundation.dart';
 
 final _logger = Logger('LocalCryptoService');
@@ -19,6 +25,9 @@ final _logger = Logger('LocalCryptoService');
 ///
 /// Supports version for future changes.
 final class LocalCryptoService implements CryptoService {
+  /// The length for the aes secret in bytes.
+  static const int _aesSecretLength = 32;
+
   /// Salt length for key derivation.
   static const int _saltLength = 16;
 
@@ -63,7 +72,8 @@ final class LocalCryptoService implements CryptoService {
         throw CryptoAlgorithmUnsupported('Algorithm $version');
       }
 
-      final algorithm = AesGcm.with256bits();
+      // ignore: avoid_redundant_argument_values
+      final algorithm = br.BrowserCryptography().aesGcm(secretKeyLength: _aesSecretLength);
       final secretKey = SecretKey(key.sublist(_saltLength));
 
       final encryptedData = data.sublist(2);
@@ -146,7 +156,8 @@ final class LocalCryptoService implements CryptoService {
     required Uint8List key,
   }) {
     Future<Uint8List> run() async {
-      final algorithm = AesGcm.with256bits();
+      // ignore: avoid_redundant_argument_values
+      final algorithm = br.BrowserCryptography().aesGcm(secretKeyLength: _aesSecretLength);
       final secretKey = SecretKey(key.sublist(_saltLength));
 
       final checksum = _checksum;

catalyst_voices/packages/internal/catalyst_voices_shared/pubspec.yaml

@@ -15,7 +15,12 @@ dependencies:
     path: ../catalyst_voices_models
   collection: ^1.19.1
   convert: ^3.1.2
-  cryptography: ^2.7.0
+  # TODO(dt-iohk): revert to pub.dev version once this is merged and released: https://github.com/emz-hanauer/dart-cryptography/pull/17
+  cryptography_plus:
+    git:
+      url: https://github.com/emz-hanauer/dart-cryptography
+      ref: 2eae39aa0f469cf065e67b760c9493b2628d3f8e
+      path: cryptography/
   equatable: ^2.0.7
   fake_async: ^1.3.3
   flutter:

catalyst_voices/packages/libs/catalyst_cardano_serialization/lib/src/signature.dart

@@ -2,7 +2,7 @@ import 'package:catalyst_cardano_serialization/src/types.dart';
 import 'package:catalyst_cardano_serialization/src/utils/hex.dart';
 import 'package:cbor/cbor.dart';
 import 'package:convert/convert.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 import 'package:equatable/equatable.dart';
 
 /// The public and private Ed25519 key pair.

catalyst_voices/packages/libs/catalyst_cardano_serialization/pubspec.yaml

@@ -5,6 +5,7 @@ issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues
 topics: [blockchain, cardano, cryptocurrency, wallet]
 version: 1.0.0
 resolution: workspace
+publish_to: none
 
 environment:
   sdk: ">=3.9.0 <4.0.0"
@@ -19,7 +20,12 @@ dependencies:
   cbor: 6.3.7
   collection: ^1.19.1
   convert: ^3.1.2
-  cryptography: ^2.7.0
+  # TODO(dt-iohk): revert to pub.dev version once this is merged and released: https://github.com/emz-hanauer/dart-cryptography/pull/17
+  cryptography_plus:
+    git:
+      url: https://github.com/emz-hanauer/dart-cryptography
+      ref: 2eae39aa0f469cf065e67b760c9493b2628d3f8e
+      path: cryptography/
   equatable: ^2.0.7
   logging: ^1.3.0
   meta: ^1.16.0

catalyst_voices/packages/libs/catalyst_cose/README.md

@@ -37,7 +37,7 @@ import 'dart:typed_data';
 import 'package:catalyst_cose/catalyst_cose.dart';
 import 'package:cbor/cbor.dart';
 import 'package:convert/convert.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 
 Future<void> main() async {
   await _coseSign1();

catalyst_voices/packages/libs/catalyst_cose/example/main.dart

@@ -6,7 +6,7 @@ import 'dart:typed_data';
 import 'package:catalyst_cose/catalyst_cose.dart';
 import 'package:cbor/cbor.dart';
 import 'package:convert/convert.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 
 Future<void> main() async {
   await _coseSign1();

catalyst_voices/packages/libs/catalyst_cose/pubspec.yaml

@@ -5,6 +5,7 @@ issue_tracker: https://github.com/input-output-hk/catalyst-voices/issues
 topics: [cryptography, encryption, codec]
 version: 1.0.0
 resolution: workspace
+publish_to: none
 
 environment:
   sdk: ">=3.9.0 <4.0.0"
@@ -13,7 +14,12 @@ dependencies:
   cbor: 6.3.7
   collection: ^1.19.1
   convert: ^3.1.2
-  cryptography: ^2.7.0
+  # TODO(dt-iohk): revert to pub.dev version once this is merged and released: https://github.com/emz-hanauer/dart-cryptography/pull/17
+  cryptography_plus:
+    git:
+      url: https://github.com/emz-hanauer/dart-cryptography
+      ref: 2eae39aa0f469cf065e67b760c9493b2628d3f8e
+      path: cryptography/
   equatable: ^2.0.7
   uuid_plus: ^0.1.0
 

catalyst_voices/packages/libs/catalyst_cose/test/cose_sign1_test.dart

@@ -2,7 +2,7 @@ import 'dart:convert';
 import 'dart:typed_data';
 
 import 'package:catalyst_cose/catalyst_cose.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 import 'package:test/test.dart';
 
 void main() {

catalyst_voices/packages/libs/catalyst_cose/test/cose_sign_test.dart

@@ -2,7 +2,7 @@ import 'dart:convert';
 import 'dart:typed_data';
 
 import 'package:catalyst_cose/catalyst_cose.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 import 'package:test/test.dart';
 
 void main() {

catalyst_voices/packages/libs/catalyst_key_derivation/lib/src/ed25519/ed25519_key_pair.dart

@@ -1,6 +1,6 @@
 import 'package:catalyst_key_derivation/src/ed25519/ed25519_private_key.dart';
 import 'package:catalyst_key_derivation/src/ed25519/ed25519_public_key.dart';
-import 'package:cryptography/cryptography.dart';
+import 'package:cryptography_plus/cryptography_plus.dart';
 import 'package:equatable/equatable.dart';
 
 /// The public and private Ed25519 key pair.