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Description:

ed25519 edwards

Ed25519 #
Dart port of ed25519 from Golang ed25519
Pub package
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);
}
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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
50.54 MB/s
254 iterations
5025 ms
254.00 MB

Ed25519 - verify
97.38 MB/s
487 iterations
5001 ms
487.00 MB

AoT (native binary)

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

type
rate
iterations
time
data throughput

Ed25519 - sign
21.64 MB/s
109 iterations
5036 ms
109.00 MB

Ed25519 - verify
37.20 MB/s
187 iterations
5027 ms
187.00 MB

JS (Dart2JS) benchmark

$ pub get
$ pub run benchmark/ed25519_benchmark.dart -p chrome

type
rate
iterations
time
data throughput

Ed25519 - sign
50.17 MB/s
251 iterations
5002 ms
251.00 MB

Ed25519 - verify
95.21 MB/s
477 iterations
5009 ms
477.00 MB