Ejemplo n.º 1
0
func (k *KexProvisioner) handlePleaseSign(ctx *Context, m *kex.Msg) error {
	eddsa := m.Args().SigningKey
	sig := m.Args().Sig

	keypair := libkb.NaclSigningKeyPair{Public: eddsa}
	sigPayload, _, err := keypair.VerifyStringAndExtract(sig)
	if err != nil {
		return err
	}

	k.G().Log.Debug("Got PleaseSign() on verified JSON blob %s\n", string(sigPayload))

	// k.deviceSibkey is public only
	if k.sigKey == nil {
		var err error
		arg := libkb.SecretKeyArg{
			Me:      k.user,
			KeyType: libkb.DeviceSigningKeyType,
		}
		k.sigKey, err = k.G().Keyrings.GetSecretKeyWithPrompt(nil, arg, k.engctx.SecretUI, "new device install")
		if err != nil {
			return err
		}
	}

	jw, err := jsonw.Unmarshal(sigPayload)
	if err != nil {
		return err
	}

	var newKID keybase1.KID
	var newKey libkb.GenericKey

	if newKID, err = libkb.GetKID(jw.AtPath("body.sibkey.kid")); err != nil {
		return err
	}

	if newKey, err = libkb.ImportKeypairFromKID(newKID); err != nil {
		return err
	}

	if err = k.verifyPleaseSign(jw, newKID); err != nil {
		return err
	}

	if err = jw.SetValueAtPath("body.sibkey.reverse_sig", jsonw.NewString(sig)); err != nil {
		return err
	}

	del := libkb.Delegator{
		NewKey:         newKey,
		ExistingKey:    k.sigKey,
		Me:             k.user,
		Expire:         libkb.NaclEdDSAExpireIn,
		DelegationType: libkb.SibkeyType,
		EldestKID:      k.user.GetEldestKID(),
		Contextified:   libkb.NewContextified(k.G()),
	}

	if err = del.CheckArgs(); err != nil {
		return err
	}

	if err = del.SignAndPost(ctx.LoginContext, jw); err != nil {
		return err
	}

	return nil
}
Ejemplo n.º 2
0
func (k *KexNewDevice) handleHello(ctx *Context, m *kex.Msg) (err error) {
	k.xDevKey, err = libkb.ImportKeypairFromKID(m.Args().DevKeyID)
	return
}