From 99af8a369e60c46b324737c2d08e99111e485d62 Mon Sep 17 00:00:00 2001
From: Mehdi Abaakouk <sileht@sileht.net>
Date: Tue, 25 May 2021 23:33:29 +0200
Subject: [PATCH] fix: handle case where the key have no cypher

gpg may have packet that looks like:

  gnu-dummy S2K, algo: 0, simple checksum, hash: 0
---
 lib/pgp.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/pgp.js b/lib/pgp.js
index 72adaca19..374e936ff 100644
--- a/lib/pgp.js
+++ b/lib/pgp.js
@@ -1164,6 +1164,8 @@ class CipherParams extends bio.Struct {
 
   blockSize() {
     switch (this.cipher) {
+      case cipherTypes.NONE:
+        return 0;
       case cipherTypes.IDEA:
       case cipherTypes.DES3:
       case cipherTypes.CAST5: