From 967c04f9cfb7a410dafd97ea9d2843f7740e63a3 Mon Sep 17 00:00:00 2001 From: Sarah Jamie Lewis Date: Tue, 18 May 2021 12:11:00 -0700 Subject: [PATCH] Fix up documentation --- model/group.go | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/model/group.go b/model/group.go index dd64182..02cc7fc 100644 --- a/model/group.go +++ b/model/group.go @@ -88,13 +88,15 @@ func (g *Group) CheckGroup() bool { return g.GroupID == deriveGroupID(g.GroupKey[:], g.GroupServer) } +// deriveGroupID hashes together the key and the hostname to create a bound identifier that can later +// be referenced and checked by profiles when they receive invites and messages. func deriveGroupID(groupKey []byte, serverHostname string) string { data, _ := base32.StdEncoding.DecodeString(strings.ToUpper(serverHostname)) pubkey := data[0:ed25519.PublicKeySize] return hex.EncodeToString(pbkdf2.Key(groupKey, pubkey, 4096, 16, sha512.New)) } -// Compromised should be called if we detect a a groupkey leak +// Compromised should be called if we detect a groupkey leak func (g *Group) Compromised() { g.IsCompromised = true }