From e4244c5fc822400d63bd8f28c5d8235c01736539 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=B4me=20Chilliet?= <come.chilliet@nextcloud.com>
Date: Mon, 23 Feb 2026 14:49:03 +0100
Subject: [PATCH] fix(encryption): Improve type strictness on decryption check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Otherwise decrypting a falsy value like '0' would be seen as a
 decryption failure.

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
---
 apps/encryption/lib/Crypto/Crypt.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/apps/encryption/lib/Crypto/Crypt.php b/apps/encryption/lib/Crypto/Crypt.php
index f80daec728a4d..0aadd64eaec1d 100644
--- a/apps/encryption/lib/Crypto/Crypt.php
+++ b/apps/encryption/lib/Crypto/Crypt.php
@@ -545,7 +545,7 @@ private function decrypt(string $encryptedContent, string $iv, string $passPhras
 			$options,
 			$iv);
 
-		if ($plainContent) {
+		if ($plainContent !== false) {
 			return $plainContent;
 		} else {
 			throw new DecryptionFailedException('Encryption library: Decryption (symmetric) of content failed: ' . openssl_error_string());