From 8be74649ceda39a3bce8e9c32dbed0dabdcc3bb5 Mon Sep 17 00:00:00 2001
From: Vitor Pamplona <vitor@vitorpamplona.com>
Date: Wed, 28 Aug 2024 17:59:59 -0400
Subject: [PATCH] Protects against empty nip04 content

---
 .../src/main/java/com/vitorpamplona/quartz/crypto/nip04/Nip04.kt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/quartz/src/main/java/com/vitorpamplona/quartz/crypto/nip04/Nip04.kt b/quartz/src/main/java/com/vitorpamplona/quartz/crypto/nip04/Nip04.kt
index c9cb73a69..7ee60712b 100644
--- a/quartz/src/main/java/com/vitorpamplona/quartz/crypto/nip04/Nip04.kt
+++ b/quartz/src/main/java/com/vitorpamplona/quartz/crypto/nip04/Nip04.kt
@@ -154,6 +154,7 @@ class Nip04(
 
             fun isNIP04(encoded: String): Boolean {
                 val l = encoded.length
+                if (l < 28) return false
                 return encoded[l - 28] == '?' && encoded[l - 27] == 'i' && encoded[l - 26] == 'v' && encoded[l - 25] == '='
             }