mirror of
https://github.com/tailscale/tailscale.git
synced 2025-11-04 00:55:11 +00:00
71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
69 lines
2.2 KiB
Go
69 lines
2.2 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package key
|
|
|
|
import "encoding/json"
|
|
|
|
// ControlPrivate is a Tailscale control plane private key.
|
|
//
|
|
// It is functionally equivalent to a MachinePrivate, but serializes
|
|
// to JSON as a byte array rather than a typed string, because our
|
|
// control plane database stores the key that way.
|
|
//
|
|
// Deprecated: this type should only be used in Tailscale's control
|
|
// plane, where existing database serializations require this
|
|
// less-good serialization format to persist. Other control plane
|
|
// implementations can use MachinePrivate with no downsides.
|
|
type ControlPrivate struct {
|
|
mkey MachinePrivate // unexported so we can limit the API surface to only exactly what we need
|
|
}
|
|
|
|
// NewControl generates and returns a new control plane private key.
|
|
func NewControl() ControlPrivate {
|
|
return ControlPrivate{NewMachine()}
|
|
}
|
|
|
|
// IsZero reports whether k is the zero value.
|
|
func (k ControlPrivate) IsZero() bool {
|
|
return k.mkey.IsZero()
|
|
}
|
|
|
|
// Public returns the MachinePublic for k.
|
|
// Panics if ControlPrivate is zero.
|
|
func (k ControlPrivate) Public() MachinePublic {
|
|
return k.mkey.Public()
|
|
}
|
|
|
|
// MarshalJSON implements json.Marshaler.
|
|
func (k ControlPrivate) MarshalJSON() ([]byte, error) {
|
|
return json.Marshal(k.mkey.k)
|
|
}
|
|
|
|
// UnmarshalJSON implements json.Unmarshaler.
|
|
func (k *ControlPrivate) UnmarshalJSON(bs []byte) error {
|
|
return json.Unmarshal(bs, &k.mkey.k)
|
|
}
|
|
|
|
// SealTo wraps cleartext into a NaCl box (see
|
|
// golang.org/x/crypto/nacl) to p, authenticated from k, using a
|
|
// random nonce.
|
|
//
|
|
// The returned ciphertext is a 24-byte nonce concatenated with the
|
|
// box value.
|
|
func (k ControlPrivate) SealTo(p MachinePublic, cleartext []byte) (ciphertext []byte) {
|
|
return k.mkey.SealTo(p, cleartext)
|
|
}
|
|
|
|
// SharedKey returns the precomputed Nacl box shared key between k and p.
|
|
func (k ControlPrivate) SharedKey(p MachinePublic) MachinePrecomputedSharedKey {
|
|
return k.mkey.SharedKey(p)
|
|
}
|
|
|
|
// OpenFrom opens the NaCl box ciphertext, which must be a value
|
|
// created by SealTo, and returns the inner cleartext if ciphertext is
|
|
// a valid box from p to k.
|
|
func (k ControlPrivate) OpenFrom(p MachinePublic, ciphertext []byte) (cleartext []byte, ok bool) {
|
|
return k.mkey.OpenFrom(p, ciphertext)
|
|
}
|