From 57e99ee96f17afe46780a6abfe4f8f93c8eadef8 Mon Sep 17 00:00:00 2001
From: Nicolas Gailly <nikkolasg@users.noreply.github.com>
Date: Wed, 8 Feb 2023 16:29:27 +0100
Subject: [PATCH] use correct threshold in dkg (#45)

This is fine for drand as we use our own threshold calculation in drand https://github.com/drand/drand/blob/master/key/group.go#L355 but the DKG package should use this as well.
n / 2 + 1 is the right number
---
 share/dkg/dkg.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/share/dkg/dkg.go b/share/dkg/dkg.go
index db2a50d8a..d7a9ec576 100644
--- a/share/dkg/dkg.go
+++ b/share/dkg/dkg.go
@@ -1093,7 +1093,7 @@ func findIndex(list []Node, index Index) (kyber.Point, bool) {
 }
 
 func MinimumT(n int) int {
-	return (n + 1) / 2
+	return (n >> 1) + 1
 }
 
 func isIndexIncluded(list []Node, index uint32) bool {