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// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.13
// +build go1.13
package wycheproof
import (
func TestEddsa(t *testing.T) {
// Jwk the private key in webcrypto format
type Jwk struct {
// Key unencoded key pair
type Key struct {
// Notes a description of the labels used in the test vectors
type Notes struct {
// SignatureTestVector
type SignatureTestVector struct {
// A brief description of the test case
Comment string `json:"comment,omitempty"`
// A list of flags
Flags []string `json:"flags,omitempty"`
// The message to sign
Msg string `json:"msg,omitempty"`
// Test result
Result string `json:"result,omitempty"`
// A signature for msg
Sig string `json:"sig,omitempty"`
// Identifier of the test case
TcId int `json:"tcId,omitempty"`
// EddsaTestGroup
type EddsaTestGroup struct {
// the private key in webcrypto format
Jwk *Jwk `json:"jwk,omitempty"`
// unencoded key pair
Key *Key `json:"key,omitempty"`
// Asn encoded public key
KeyDer string `json:"keyDer,omitempty"`
// Pem encoded public key
KeyPem string `json:"keyPem,omitempty"`
Tests []*SignatureTestVector `json:"tests,omitempty"`
Type interface{} `json:"type,omitempty"`
// Root
type Root struct {
// the primitive tested in the test file
Algorithm string `json:"algorithm,omitempty"`
// the version of the test vectors.
GeneratorVersion string `json:"generatorVersion,omitempty"`
// additional documentation
Header []string `json:"header,omitempty"`
// a description of the labels used in the test vectors
Notes *Notes `json:"notes,omitempty"`
// the number of test vectors in this test
NumberOfTests int `json:"numberOfTests,omitempty"`
Schema interface{} `json:"schema,omitempty"`
TestGroups []*EddsaTestGroup `json:"testGroups,omitempty"`
var root Root
readTestVector(t, "eddsa_test.json", &root)
for _, tg := range root.TestGroups {
pub := decodePublicKey(tg.KeyDer).(ed25519.PublicKey)
for _, sig := range tg.Tests {
got := ed25519.Verify(pub, decodeHex(sig.Msg), decodeHex(sig.Sig))
if want := shouldPass(sig.Result, sig.Flags, nil); got != want {
t.Errorf("tcid: %d, type: %s, comment: %q, wanted success: %t", sig.TcId, sig.Result, sig.Comment, want)