mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-15 04:28:17 +00:00
4da559d7cc
This iterates on the original signature format. Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
// Copyright (c) 2020 Tailscale Inc & 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 controlclient
|
|
|
|
import (
|
|
"crypto"
|
|
"errors"
|
|
"fmt"
|
|
"time"
|
|
|
|
"tailscale.com/tailcfg"
|
|
"tailscale.com/types/key"
|
|
)
|
|
|
|
var (
|
|
errNoCertStore = errors.New("no certificate store")
|
|
errCertificateNotConfigured = errors.New("no certificate subject configured")
|
|
errUnsupportedSignatureVersion = errors.New("unsupported signature version")
|
|
)
|
|
|
|
// HashRegisterRequest generates the hash required sign or verify a
|
|
// tailcfg.RegisterRequest.
|
|
func HashRegisterRequest(
|
|
version tailcfg.SignatureType, ts time.Time, serverURL string, deviceCert []byte,
|
|
serverPubKey, machinePubKey key.MachinePublic) ([]byte, error) {
|
|
h := crypto.SHA256.New()
|
|
|
|
// hash.Hash.Write never returns an error, so we don't check for one here.
|
|
switch version {
|
|
case tailcfg.SignatureV1:
|
|
fmt.Fprintf(h, "%s%s%s%s%s",
|
|
ts.UTC().Format(time.RFC3339), serverURL, deviceCert, serverPubKey.ShortString(), machinePubKey.ShortString())
|
|
case tailcfg.SignatureV2:
|
|
fmt.Fprintf(h, "%s%s%s%s%s",
|
|
ts.UTC().Format(time.RFC3339), serverURL, deviceCert, serverPubKey, machinePubKey)
|
|
default:
|
|
return nil, errUnsupportedSignatureVersion
|
|
}
|
|
|
|
return h.Sum(nil), nil
|
|
}
|