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// Copyright 2023 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.
package note
import (
"crypto/rand"
"testing"
"time"
"golang.org/x/mod/sumdb/note"
)
func TestSignerRoundtrip(t *testing.T) {
skey, _, err := note.GenerateKey(rand.Reader, "test")
if err != nil {
t.Fatal(err)
}
s, err := NewSignerForCosignatureV1(skey)
if err != nil {
t.Fatal(err)
}
msg := "test\n123\nf+7CoKgXKE/tNys9TTXcr/ad6U/K3xvznmzew9y6SP0=\n"
n, err := note.Sign(¬e.Note{Text: msg}, s)
if err != nil {
t.Fatal(err)
}
if _, err := note.Open(n, note.VerifierList(s.Verifier())); err != nil {
t.Fatal(err)
}
}
func TestSignerVerifierRoundtrip(t *testing.T) {
skey, vkey, err := note.GenerateKey(rand.Reader, "test")
if err != nil {
t.Fatal(err)
}
s, err := NewSignerForCosignatureV1(skey)
if err != nil {
t.Fatal(err)
}
v, err := NewVerifierForCosignatureV1(vkey)
if err != nil {
t.Fatal(err)
}
msg := "test\n123\nf+7CoKgXKE/tNys9TTXcr/ad6U/K3xvznmzew9y6SP0=\n"
n, err := note.Sign(¬e.Note{Text: msg}, s)
if err != nil {
t.Fatal(err)
}
if _, err := note.Open(n, note.VerifierList(v)); err != nil {
t.Fatal(err)
}
}
func TestVerifierInvalidSig(t *testing.T) {
skey, _, err := note.GenerateKey(rand.Reader, "test")
if err != nil {
t.Fatal(err)
}
s, err := NewSignerForCosignatureV1(skey)
if err != nil {
t.Fatal(err)
}
msg := "test\n123\nf+7CoKgXKE/tNys9TTXcr/ad6U/K3xvznmzew9y6SP0=\n"
if _, err := note.Sign(¬e.Note{Text: msg}, s); err != nil {
t.Fatal(err)
}
if _, err := note.Open([]byte("nobbled"), note.VerifierList(s.Verifier())); err == nil {
t.Fatal("Verifier validated incorrect signature")
}
}
func TestSigCoversExtensionLines(t *testing.T) {
skey, _, err := note.GenerateKey(rand.Reader, "test")
if err != nil {
t.Fatal(err)
}
s, err := NewSignerForCosignatureV1(skey)
if err != nil {
t.Fatal(err)
}
msg := "test\n123\nf+7CoKgXKE/tNys9TTXcr/ad6U/K3xvznmzew9y6SP0=\nExtendo\n"
n, err := note.Sign(¬e.Note{Text: msg}, s)
if err != nil {
t.Fatal(err)
}
n[len(n)-2] = '@'
if _, err := note.Open(n, note.VerifierList(s.Verifier())); err == nil {
t.Fatal("Signature did not cover extension lines")
}
}
func TestCoSigV1NewVerifier(t *testing.T) {
for _, test := range []struct {
name string
pubK string
wantErr bool
}{
{
name: "works",
pubK: "TEST+7997405c+AQcC+FTVKf0jlTdHDY3rbevmnKxxPjigCXlVtGe6RIr6",
}, {
name: "wrong number of parts",
pubK: "bananas.sigstore.dev+12344556",
wantErr: true,
}, {
name: "invalid base64",
pubK: "rekor.sigstore.dev+12345678+THIS_IS_NOT_BASE64!",
wantErr: true,
}, {
name: "invalid algo",
pubK: "rekor.sigstore.dev+12345678+AwEB",
wantErr: true,
}, {
name: "invalid keyhash",
pubK: "rekor.sigstore.dev+NOT_A_NUMBER+" + sigStoreKeyMaterial,
wantErr: true,
}, {
name: "incorrect keyhash",
pubK: "rekor.sigstore.dev" + "+" + "00000000" + "+" + sigStoreKeyMaterial,
wantErr: true,
},
} {
t.Run(test.name, func(t *testing.T) {
_, err := NewVerifier(test.pubK)
if gotErr := err != nil; gotErr != test.wantErr {
t.Fatalf("NewVerifier(%q): %v", test.pubK, err)
}
})
}
}
func TestCoSigV1Timestamp(t *testing.T) {
for _, test := range []struct {
name string
sig note.Signature
wantErr bool
wantTime time.Time
}{
{
name: "works",
sig: note.Signature{Base64: "ZGhGuQAAAABm/qTPeyKXD+R2rzyQsxPiP8mXum7qq/iF0u4vanlqJyocWODBt97w9uL+8qT7S5gxEHWWOworDcFiEBYJXORmnFBOBA=="},
wantTime: time.Unix(1727964367, 0),
}, {
name: "wrong type of signature",
sig: note.Signature{Base64: "eQjRQm6eSKzFoiYalgwCPXu2y3ijtg68is9M46JKxuZB+dRfTmeQeDBoXnvxZx2ugnkyV+MUMLXpWs1hPb/W/4xkNQY="},
wantErr: true,
}, {
name: "gibberish",
sig: note.Signature{Base64: "5%/$!\n 2"},
wantErr: true,
},
} {
t.Run(test.name, func(t *testing.T) {
gotTime, err := CoSigV1Timestamp(test.sig)
if gotErr := err != nil; gotErr != test.wantErr {
t.Fatalf("got error %q, want err: %v", err, test.wantErr)
} else if gotErr {
return
}
if gotTime != test.wantTime {
t.Fatalf("got time %v, want %v", gotTime.UnixMilli(), test.wantTime.UnixMilli())
}
})
}
}
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