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Validating CODEOWNERS rules …
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# This file is used to define a set of default reviewers. | ||
* @justkawal |
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# These are supported funding model platforms | ||
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github: # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2] | ||
patreon: # Replace with a single Patreon username | ||
open_collective: # Replace with a single Open Collective username | ||
ko_fi: kawal | ||
tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel | ||
community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry | ||
liberapay: # Replace with a single Liberapay username | ||
issuehunt: # Replace with a single IssueHunt username | ||
otechie: # Replace with a single Otechie username | ||
lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry | ||
custom: https://paypal.me/justkawal |
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# This workflow uses actions that are not certified by GitHub. | ||
# They are provided by a third-party and are governed by | ||
# separate terms of service, privacy policy, and support | ||
# documentation. | ||
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name: Dart | ||
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on: | ||
push: | ||
branches: [ main ] | ||
pull_request: | ||
branches: [ main ] | ||
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jobs: | ||
build: | ||
runs-on: ubuntu-latest | ||
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steps: | ||
- uses: actions/checkout@v3 | ||
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# Note: This workflow uses the latest stable version of the Dart SDK. | ||
# You can specify other versions if desired, see documentation here: | ||
# https://github.com/dart-lang/setup-dart/blob/main/README.md | ||
# - uses: dart-lang/setup-dart@v1 | ||
- uses: dart-lang/setup-dart@9a04e6d73cca37bd455e0608d7e5092f881fd603 | ||
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- name: Install dependencies | ||
run: dart pub get | ||
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# Uncomment this step to verify the use of 'dart format' on each commit. | ||
- name: Verify formatting | ||
run: dart format --output=none --set-exit-if-changed . | ||
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# Consider passing '--fatal-infos' for slightly stricter analysis. | ||
- name: Analyze project source | ||
run: dart analyze --fatal-infos | ||
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# Your project will need to have tests in test/ and a dependency on | ||
# package:test for this step to succeed. Note that Flutter projects will | ||
# want to change this to 'flutter test'. | ||
- name: Run tests | ||
run: dart test |
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# https://dart.dev/guides/libraries/private-files | ||
# Created by `dart pub` | ||
.dart_tool/ | ||
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# Avoid committing pubspec.lock for library packages; see | ||
# https://dart.dev/guides/libraries/private-files#pubspeclock. | ||
pubspec.lock |
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## 1.0.0 | ||
- Initial version. | ||
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## 1.0.1 | ||
- Publish version. |
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The MIT License (MIT) | ||
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Copyright (C) 2023 - Kawaljeet Singh | ||
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Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
this software and associated documentation files (the "Software"), to deal in | ||
the Software without restriction, including without limitation the rights to | ||
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of | ||
the Software, and to permit persons to whom the Software is furnished to do so, | ||
subject to the following conditions: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | ||
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | ||
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | ||
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
Empty file.
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# This file configures the static analysis results for your project (errors, | ||
# warnings, and lints). | ||
# | ||
# This enables the 'recommended' set of lints from `package:lints`. | ||
# This set helps identify many issues that may lead to problems when running | ||
# or consuming Dart code, and enforces writing Dart using a single, idiomatic | ||
# style and format. | ||
# | ||
# If you want a smaller set of lints you can change this to specify | ||
# 'package:lints/core.yaml'. These are just the most critical lints | ||
# (the recommended set includes the core lints). | ||
# The core lints are also what is used by pub.dev for scoring packages. | ||
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include: package:lints/recommended.yaml | ||
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# Uncomment the following section to specify additional rules. | ||
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linter: | ||
rules: | ||
prefer_final_fields | ||
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# analyzer: | ||
# exclude: | ||
# - path/to/excluded/files/** | ||
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# For more information about the core and recommended set of lints, see | ||
# https://dart.dev/go/core-lints | ||
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# For additional information about configuring this file, see | ||
# https://dart.dev/guides/language/analysis-options |
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import 'dart:convert'; | ||
import 'dart:typed_data'; | ||
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import 'package:convert/convert.dart'; | ||
import 'package:merlin/merlin.dart'; | ||
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void main() { | ||
{ | ||
//Simple Transcript | ||
final mt = Transcript('test protocol'); | ||
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mt.appendMessage(Uint8List.fromList(utf8.encode('some label')), | ||
Uint8List.fromList(utf8.encode('some data'))); | ||
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final cBytes = | ||
mt.extractBytes(Uint8List.fromList(utf8.encode('challenge')), 32); | ||
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// d5a21972d0d5fe320c0d263fac7fffb8145aa640af6e9bca177c03c7efcf0615 | ||
final cHex = hex.encode(cBytes); | ||
print(cHex); | ||
} | ||
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{ | ||
// Complex Transcript | ||
final tr = Transcript('test protocol'); | ||
tr.appendMessage(utf8.encode('step1'), utf8.encode('some data')); | ||
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final data = Uint8List(1024)..fillRange(0, 1024, 99); | ||
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late List<int> chlBytes; | ||
for (var i = 0; i < 32; i++) { | ||
chlBytes = tr.extractBytes(utf8.encode('challenge'), 32); | ||
tr | ||
..appendMessage(utf8.encode('bigdata'), data) | ||
..appendMessage(utf8.encode('challengedata'), chlBytes); | ||
} | ||
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// a8c933f54fae76e3f9bea93648c1308e7dfa2152dd51674ff3ca438351cf003c | ||
final chlHex = hex.encode(chlBytes); | ||
print(chlHex); | ||
} | ||
} |
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import 'dart:convert'; | ||
import 'dart:typed_data'; | ||
import 'package:strobe/strobe.dart'; | ||
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const merlinProtocolLabel = 'Merlin v1.0'; | ||
const domainSeparatorLabel = 'dom-sep'; | ||
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class Transcript { | ||
late Strobe s; | ||
Transcript(String appLabel) { | ||
s = Strobe.initStrobe(merlinProtocolLabel, Security.bit128); | ||
appendMessage(utf8.encode(domainSeparatorLabel), utf8.encode(appLabel)); | ||
} | ||
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// Append adds the message to the transcript with the supplied label. | ||
void appendMessage(List<int> label, List<int> message) { | ||
final sizeBuffer = Uint8List(4); | ||
ByteData.view(sizeBuffer.buffer) | ||
.setUint32(0, message.length, Endian.little); | ||
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final labelSize = Uint8List.fromList([...label, ...sizeBuffer]); | ||
s | ||
..aD(true, labelSize) | ||
..aD(false, message); | ||
} | ||
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// ExtractBytes returns a buffer filled with the verifier's challenge bytes. | ||
// The label parameter is metadata about the challenge, and is also appended to | ||
// the transcript. See the Transcript Protocols section of the Merlin website | ||
// for details on labels. | ||
List<int> extractBytes(List<int> label, int outLen) { | ||
final sizeBuffer = Uint8List(4); | ||
ByteData.view(sizeBuffer.buffer).setUint32(0, outLen, Endian.little); | ||
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final labelSize = Uint8List.fromList([...label, ...sizeBuffer]); | ||
s.aD(true, labelSize); | ||
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return s.prf(outLen); | ||
} | ||
} |
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name: merlin | ||
description: A starting point for Dart libraries or applications. | ||
version: 1.0.1 | ||
repository: https://github.com/justkawal/merlin | ||
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environment: | ||
sdk: ^3.1.5 | ||
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dependencies: | ||
strobe: ^1.0.1 | ||
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dev_dependencies: | ||
convert: ^3.1.1 | ||
lints: ^3.0.0 | ||
test: ^1.21.0 |
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import 'dart:convert'; | ||
import 'dart:typed_data'; | ||
import 'package:convert/convert.dart'; | ||
import 'package:merlin/merlin.dart'; | ||
import 'package:test/test.dart'; | ||
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void main() { | ||
test('Test Simple Transcript', () { | ||
final mt = Transcript('test protocol'); | ||
mt.appendMessage(Uint8List.fromList(utf8.encode('some label')), | ||
Uint8List.fromList(utf8.encode('some data'))); | ||
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final cBytes = | ||
mt.extractBytes(Uint8List.fromList(utf8.encode('challenge')), 32); | ||
final cHex = hex.encode(cBytes); | ||
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expect(cHex, | ||
'd5a21972d0d5fe320c0d263fac7fffb8145aa640af6e9bca177c03c7efcf0615'); | ||
}); | ||
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test('Test Complex Transcript', () { | ||
final tr = Transcript('test protocol'); | ||
tr.appendMessage(utf8.encode('step1'), utf8.encode('some data')); | ||
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final data = Uint8List(1024)..fillRange(0, 1024, 99); | ||
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late List<int> chlBytes; | ||
for (var i = 0; i < 32; i++) { | ||
chlBytes = tr.extractBytes(utf8.encode('challenge'), 32); | ||
tr | ||
..appendMessage(utf8.encode('bigdata'), data) | ||
..appendMessage(utf8.encode('challengedata'), chlBytes); | ||
} | ||
final chlHex = hex.encode(chlBytes); | ||
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expect(chlHex, | ||
'a8c933f54fae76e3f9bea93648c1308e7dfa2152dd51674ff3ca438351cf003c'); | ||
}); | ||
} |