Ed25519

Dart port of ed25519 from Golang ed25519

Usage

import 'package:ed25519_edwards/ed25519_edwards.dart' as ed;

    void signAndVerify() {
      var keyPair = ed.generateKey();
        var privateKey = keyPair.privateKey;
        var publicKey = keyPair.publicKey;
        var message = utf8.encode('test message');
        var sig = ed.sign(privateKey, message as Uint8List);
        var result = ed.verify(publicKey, message, sig);
        assert(result == true);
      
        var wrongMessage = utf8.encode('wrong message');
        var wrongResult = ed.verify(publicKey, wrongMessage as Uint8List, sig);
        assert(wrongResult == false);
    }

APIs

Ed25519
public
seed
newKeyFromSeed
generateKey
sign
verify

Edwards25519
FeZero
FeOne
FeAdd
FeSub
FeCopy
FeCMove
FeFromBytes
FeToBytes
FeIsNegative
FeIsNonZero
FeNeg
FeCombine
FeMul
FeSqaure
FeSquare2
FeInvert
GeDoubleScalarMultVartime
PreComputedGroupElementCMove
GeScalarMultBase
ScMulAdd
ScReduce
ScMinimal

Benchmark

Simulate from pinenacl-dart Benchmark

MacBook Pro (16-inch, 2019), macOS Big Sur, with 2.4GHz i9 32GB

JiT (Dart VM) Benchmark

$ pub get
$ pub run benchmark/ed25519_benchmark.dart

type	rate	iterations	time	data throughput
Ed25519 - sign	47.10 MB/s	236 iterations	5010 ms	236.00 MB
Ed25519 - verify	99.31 MB/s	497 iterations	5004 ms	497.00 MB

AoT (native binary)

$ pub get
$ dart2native benchmark/ed25519_benchmark.dart -o ed25519_benchmark
$ ./ed25519_benchmark

type	rate	iterations	time	data throughput
Ed25519 - sign	21.96 MB/s	110 iterations	5008 ms	110.00 MB
Ed25519 - verify	43.10 MB/s	216 iterations	5012 ms	216.00 MB

Pub package