From fea64f7572b810f5d1f32b4b5edb0c02bcf28164 Mon Sep 17 00:00:00 2001
From: Daniel Huigens <d.huigens@protonmail.com>
Date: Mon, 19 Jun 2023 16:29:10 +0200
Subject: [PATCH] Fix panic when parsing empty EdDSA public key

---
 openpgp/packet/public_key.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/openpgp/packet/public_key.go b/openpgp/packet/public_key.go
index ec903ee9..3402b8c1 100644
--- a/openpgp/packet/public_key.go
+++ b/openpgp/packet/public_key.go
@@ -415,6 +415,10 @@ func (pk *PublicKey) parseEdDSA(r io.Reader) (err error) {
 		return
 	}
 
+	if len(pk.p.Bytes()) == 0 {
+		return errors.StructuralError("empty EdDSA public key")
+	}
+
 	pub := eddsa.NewPublicKey(c)
 
 	switch flag := pk.p.Bytes()[0]; flag {