From 9bd3b5b89c60534a9066902ae54b52f5797365bd Mon Sep 17 00:00:00 2001
From: Brad Fitzpatrick <bradfitz@tailscale.com>
Date: Tue, 19 Jul 2022 14:39:55 -0700
Subject: [PATCH] types/key: add ControlPrivate.Shared wrapper too

Follow-up to cfdb8626738da.

Change-Id: Iab610d761f1e6d88e8bcb584d9c02cafe48fc377
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
---
 types/key/control.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/types/key/control.go b/types/key/control.go
index cdd18eb4a..3784c6e1c 100644
--- a/types/key/control.go
+++ b/types/key/control.go
@@ -56,6 +56,11 @@ func (k ControlPrivate) SealTo(p MachinePublic, cleartext []byte) (ciphertext []
 	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.