66 lines
1.8 KiB
Go
66 lines
1.8 KiB
Go
// SPDX-License-Identifier: MPL-2.0
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package authwebauthn
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import (
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"crypto/ecdh"
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"crypto/rand"
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"errors"
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"testing"
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"gamertan.com/web/internal/webauthnvendored/protocol/webauthncbor"
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"gamertan.com/web/internal/webauthnvendored/protocol/webauthncose"
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wa "gamertan.com/web/internal/webauthnvendored/webauthn"
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)
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func TestEnforceCredentialAlgorithmUsesVerifiedCOSEKey(t *testing.T) {
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privateKey, err := ecdh.P256().GenerateKey(rand.Reader)
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if err != nil {
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t.Fatal(err)
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}
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publicKey := privateKey.PublicKey().Bytes()
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encoded, err := webauthncbor.Marshal(map[int64]any{
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1: int64(webauthncose.EllipticKey),
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3: int64(webauthncose.AlgES256),
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-1: int64(webauthncose.P256),
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-2: publicKey[1:33],
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-3: publicKey[33:65],
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})
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if err != nil {
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t.Fatal(err)
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}
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credential := &wa.Credential{
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PublicKey: encoded,
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// This value is absent when a standards-compliant client serializes the
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// mandatory attestation object without optional response conveniences.
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Attestation: wa.CredentialAttestation{PublicKeyAlgorithm: 0},
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}
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if err = enforceCredentialAlgorithm(credential); err != nil {
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t.Fatalf("verified ES256 COSE key rejected when convenience value was absent: %v", err)
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}
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}
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func TestEnforceCredentialAlgorithmRejectsOtherOrInvalidKeys(t *testing.T) {
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rsaKey, err := webauthncbor.Marshal(map[int64]any{
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1: int64(webauthncose.RSAKey),
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3: int64(webauthncose.AlgRS256),
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-1: []byte{0xff},
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-2: []byte{0x01, 0x00, 0x01},
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})
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if err != nil {
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t.Fatal(err)
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}
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for name, credential := range map[string]*wa.Credential{
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"nil": nil,
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"malformed": {PublicKey: []byte("not-cose")},
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"rsa": {PublicKey: rsaKey},
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} {
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t.Run(name, func(t *testing.T) {
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if err := enforceCredentialAlgorithm(credential); !errors.Is(err, ErrUnsupportedCredential) {
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t.Fatalf("error=%v", err)
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}
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})
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}
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}
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