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32 lines
911 B
Go
32 lines
911 B
Go
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// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package controlclient
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import (
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"crypto"
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"errors"
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"fmt"
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"time"
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"tailscale.com/types/wgkey"
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)
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var (
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errNoCertStore = errors.New("no certificate store")
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errCertificateNotConfigured = errors.New("no certificate subject configured")
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)
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// HashRegisterRequest generates the hash required sign or verify a
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// tailcfg.RegisterRequest with tailcfg.SignatureV1.
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func HashRegisterRequest(ts time.Time, serverURL string, deviceCert []byte, serverPubKey, machinePubKey wgkey.Key) []byte {
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h := crypto.SHA256.New()
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// hash.Hash.Write never returns an error, so we don't check for one here.
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fmt.Fprintf(h, "%s%s%s%s%s",
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ts.UTC().Format(time.RFC3339), serverURL, deviceCert, serverPubKey, machinePubKey)
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return h.Sum(nil)
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}
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