Merge pull request #23192 from owncloud/make-ancient-users-happy-with-totally-untested-stuff

Fallback for crappy ancient distributions

1 files changed, 7 insertions, 0 deletions

diff --git a/apps/encryption/lib/crypto/crypt.php b/apps/encryption/lib/crypto/crypt.php
index 645f1ff0547..ca70c88488f 100644
--- a/apps/encryption/lib/crypto/crypt.php
+++ b/apps/encryption/lib/crypto/crypt.php
@@ -266,6 +266,13 @@ class Crypt {
 			$cipher = self::DEFAULT_CIPHER;
 		}
 
+		// Workaround for OpenSSL 0.9.8. Fallback to an old cipher that should work.
+		if(OPENSSL_VERSION_NUMBER < 0x1000101f) {
+			if($cipher === 'AES-256-CTR' || $cipher === 'AES-128-CTR') {
+				$cipher = self::LEGACY_CIPHER;
+			}
+		}
+
 		return $cipher;
 	}