lazysecret

Description:

lazysecret

lazysecret #
Lazysecret is a comprehensive Flutter implementation of the libsodium using secret_box library.
Usage #

pubspec.yml

dependencies:
lazysecret: ^1.0.2
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Dart

final lazysecret = LazySecret.instance;
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Function #
Future<Uint8List> randomBytesBuf(int size)

Future<String> toHex(Uint8List bytes)

Future<Uint8List> toBin(String hexString)

Future<String> cryptoBoxBeforeNm(KeyPair keyPair)

Future<String> cryptoSecretBoxEasy(String plaintext, String nonce, String key)

Future<String> cryptoSecretBoxOpenEasy(String ciphertext, String nonce, String key)

Future<KeyPair> cryptoKxKeyPair()

Future<int> cryptoSecretBoxKeyBytes()

Future<int> cryptoSecretBoxNonceBytes()

Future<int> cryptoSecretBoxMacBytes()
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Android #

proguard-rules.pro

-keep class com.sun.jna.** { *; }
-keep class * implements com.sun.jna.** { *; }
-dontwarn java.awt.*
-keepclassmembers class * extends com.sun.jna.* { public *; }
-keepclassmembers class * extends com.sun.jna.** {
<fields>;
<methods>;
}
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Web #

Download the sodium.js file

https://raw.githubusercontent.com/jedisct1/libsodium.js/master/dist/browsers-sumo/sodium.js

Add sodium.js to web directory

.
└── web
├── ...
└── sodium.js <- here
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Add script in web/index.html

<script src="sodium.js"></script>
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Add LazySecret.init() in main.dart

void main() async {
WidgetsFlutterBinding.ensureInitialized();

await LazySecret.init();

runApp(const MyApp());
}
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Documentation #
https://libsodium.gitbook.io/doc/secret-key_cryptography/secretbox
Sodium is a modern, easy-to-use software library for encryption, decryption, signatures, password hashing, and more.