# \#encryption **URL:** https://help.nextcloud.com/tag/encryption/488.md [Latest](https://help.nextcloud.com/latest.md) · [Categories](https://help.nextcloud.com/categories.md) · [Tags](https://help.nextcloud.com/tags.md) --- ## [Need Encryption Solution for ZimaOS + Nextcloud 33.0.5 - Protect Against Server Access](https://help.nextcloud.com/t/need-encryption-solution-for-zimaos-nextcloud-33-0-5-protect-against-server-access/246018)
**Author:** [@Keysox](https://help.nextcloud.com/u/Keysox)\ **Replies:** 9\ **Last updated:** [June 20, 2026, 2:31pm UTC](https://help.nextcloud.com/t/need-encryption-solution-for-zimaos-nextcloud-33-0-5-protect-against-server-access/246018 "2026-06-20T14:31:53Z")
Hi :wave: I’m currently improving the security of my Nextcloud instance and want to enable encryption. Current setup: - ZimaOS - Nextcloud 33.0.5 (bigbeartechworld/big-bear-nextcloud-with-smbclient:33.0.5) Problem w… --- ## [Summary of different encryption modes in NC, let's see if I understood it](https://help.nextcloud.com/t/summary-of-different-encryption-modes-in-nc-lets-see-if-i-understood-it/234466)
**Author:** [@lobianco](https://help.nextcloud.com/u/lobianco)\ **Replies:** 5\ **Last updated:** [October 23, 2025, 12:00pm UTC](https://help.nextcloud.com/t/summary-of-different-encryption-modes-in-nc-lets-see-if-i-understood-it/234466 "2025-10-23T12:00:11Z")
I manage for our team a NC instance hosted/managed by Hetzner. Please confirm me that I have understood correctly the 3 main forms of encryption offered by Nextcloud. The following is based on Data encryption methods in… --- ## [Issue getting Nextcloud AIO working with a local \`.home.arpa\` domain](https://help.nextcloud.com/t/issue-getting-nextcloud-aio-working-with-a-local-home-arpa-domain/234280)
**Author:** [@Cyberhead](https://help.nextcloud.com/u/Cyberhead)\ **Replies:** 0\ **Last updated:** [October 19, 2025, 8:58am UTC](https://help.nextcloud.com/t/issue-getting-nextcloud-aio-working-with-a-local-home-arpa-domain/234280 "2025-10-19T08:58:42Z")
The Basics Nextcloud Server version (e.g., 29.x.x): Nextcloud AIO v11.10.0 Operating system and version (e.g., Ubuntu 24.04): OpenMediaVault 7.7.17 (Debian based) Web server and version (e.g, Apache 2.4.25): I di… --- ## [Decrypting files with decrypt-all-files.php - key path problem](https://help.nextcloud.com/t/decrypting-files-with-decrypt-all-files-php-key-path-problem/233277)
**Author:** [@Marcus.E](https://help.nextcloud.com/u/Marcus.E)\ **Replies:** 4\ **Last updated:** [October 13, 2025, 2:59pm UTC](https://help.nextcloud.com/t/decrypting-files-with-decrypt-all-files-php-key-path-problem/233277 "2025-10-13T14:59:19Z")
▶ Nextcloud Server version (e.g., 29.x.x): 31.0.2.1 Operating system and version (e.g., Ubuntu 24.04): Debian 12.12 Web server and version (e.g, Apache 2.4.25): Apache2 2.4.65 Reverse proxy and version \_(e.g. n… --- ## [Understanding the current Server-Side Encryption Tools](https://help.nextcloud.com/t/understanding-the-current-server-side-encryption-tools/233001)
**Author:** [@Toorero](https://help.nextcloud.com/u/Toorero)\ **Replies:** 1\ **Last updated:** [September 29, 2025, 12:48am UTC](https://help.nextcloud.com/t/understanding-the-current-server-side-encryption-tools/233001 "2025-09-29T00:48:21Z")
Short Summary I was migrating my Nextcloud instance running on a Raspberry-Pi to a new UGREE NAS where I faced problems with the signing verification of the server-side encryption (because of my own laziness) I had enabl… --- ## [Message encryption](https://help.nextcloud.com/t/message-encryption/225825)
**Author:** [@theking2](https://help.nextcloud.com/u/theking2)\ **Replies:** 2\ **Last updated:** [May 30, 2025, 3:13pm UTC](https://help.nextcloud.com/t/message-encryption/225825 "2025-05-30T15:13:12Z")
Nextcloud Server version: Nextcloud 31.0.5 Operating system and version: #1 SMP PREEMPT Debian 1:6.12.25-1+rpt1 (2025-04-30) Web server and version: Server version: Apache/2.4.62 (Debian) Reverse proxy and vers… --- ## [shared file for external user not decryptable, error Server 500](https://help.nextcloud.com/t/shared-file-for-external-user-not-decryptable-error-server-500/225876)
**Author:** [@s3renity](https://help.nextcloud.com/u/s3renity)\ **Replies:** 0\ **Last updated:** [May 28, 2025, 1:51pm UTC](https://help.nextcloud.com/t/shared-file-for-external-user-not-decryptable-error-server-500/225876 "2025-05-28T13:51:08Z")
The Basics Nextcloud Server version (e.g., 29.x.x): 31.0.5 Operating system and version (e.g., Ubuntu 24.04): Debian 5.10.223-1 (2024-08-10) x86\_64 GNU/Linux (Webhosting Platform) Web server and version (e.g, Apac… --- ## [E2EE - Not working on iOS :(](https://help.nextcloud.com/t/e2ee-not-working-on-ios/218280)
**Author:** [@SaifAhmed777](https://help.nextcloud.com/u/SaifAhmed777)\ **Replies:** 8\ **Last updated:** [May 20, 2025, 4:51pm UTC](https://help.nextcloud.com/t/e2ee-not-working-on-ios/218280 "2025-05-20T16:51:46Z")
Hi! Just need a bit of help here, I have server side encryption activated, with the E2EE working brilliantly on my Windows and MacOS Clients. I have tried to get it to work on my iOS client. But, it’s being a bit weird,… --- ## [Need Help with S3 External Storage Setup (with SSE-C key)](https://help.nextcloud.com/t/need-help-with-s3-external-storage-setup-with-sse-c-key/220707)
**Author:** [@MeSo2](https://help.nextcloud.com/u/MeSo2)\ **Replies:** 3\ **Last updated:** [April 2, 2025, 8:14pm UTC](https://help.nextcloud.com/t/need-help-with-s3-external-storage-setup-with-sse-c-key/220707 "2025-04-02T20:14:05Z")
Nextcloud Server version: 30.0.2 PHP version: 8.3 Installation method: FTP onto Shared Web Host (no SSL) nginx Are you using CloudfIare, mod\_security, or similar? (Yes / No) do not know Issue: Sorry (I am new to NC)… --- ## [Nextcloud AIO did not restore Serverside encryption keys?](https://help.nextcloud.com/t/nextcloud-aio-did-not-restore-serverside-encryption-keys/219866)
**Author:** [@Wrought7888](https://help.nextcloud.com/u/Wrought7888)\ **Replies:** 2\ **Last updated:** [March 13, 2025, 10:04pm UTC](https://help.nextcloud.com/t/nextcloud-aio-did-not-restore-serverside-encryption-keys/219866 "2025-03-13T22:04:39Z")
Hi, I’ve been having problems with my nextcloud instance. To make a long story short I restored a backup using the built in borg-backup tool from August 2024 and files that were encrypted using server side encryption are… --- ## [Encrypt NCs Data Folder with Luks](https://help.nextcloud.com/t/encrypt-ncs-data-folder-with-luks/217406)
**Author:** [@notarobot](https://help.nextcloud.com/u/notarobot)\ **Replies:** 10\ **Last updated:** [February 16, 2025, 4:27pm UTC](https://help.nextcloud.com/t/encrypt-ncs-data-folder-with-luks/217406 "2025-02-16T16:27:24Z")
I want to encrypt my data folder, in my case a drive, with luks so that theft of my hard drive won’t give easy access to all of my data. Merely being an on and off linux user, by no means an expert and new to nextcloud,… --- ## [NC App in transit encryption, avoid L7 firewall/inspection](https://help.nextcloud.com/t/nc-app-in-transit-encryption-avoid-l7-firewall-inspection/213284)
**Author:** [@tonyalbers](https://help.nextcloud.com/u/tonyalbers)\ **Replies:** 1\ **Last updated:** [December 23, 2024, 5:27pm UTC](https://help.nextcloud.com/t/nc-app-in-transit-encryption-avoid-l7-firewall-inspection/213284 "2024-12-23T17:27:17Z")
Hiya, I know the NC Client uses TLS to talk to a NC server, but I have a worry: At a customer site, they are going to implement a) a L7 firewall which does packet and session inspection, and b) forward proxying using a… --- ## [NextCloud client on linux - safety/awareness of fscrypt](https://help.nextcloud.com/t/nextcloud-client-on-linux-safety-awareness-of-fscrypt/195671)
**Author:** [@nneul](https://help.nextcloud.com/u/nneul)\ **Replies:** 1\ **Last updated:** [June 20, 2024, 4:44pm UTC](https://help.nextcloud.com/t/nextcloud-client-on-linux-safety-awareness-of-fscrypt/195671 "2024-06-20T16:44:03Z")
I’m considering doing partial home directory encryption with fscrypt. One area of concern is how this will interact with NextCloud client. Since fscrypt results in filenames being hashed during encrypted state - my conce… --- ## [I am confused about encryption reading an NC article Is user-key-encryption possible?](https://help.nextcloud.com/t/i-am-confused-about-encryption-reading-an-nc-article-is-user-key-encryption-possible/192761)
**Author:** [@Anders\_Yuran](https://help.nextcloud.com/u/Anders_Yuran)\ **Replies:** 2\ **Last updated:** [May 19, 2024, 1:47pm UTC](https://help.nextcloud.com/t/i-am-confused-about-encryption-reading-an-nc-article-is-user-key-encryption-possible/192761 "2024-05-19T13:47:43Z")
Hi! Reading this article Encryption in Nextcloud It states that encryption or not is possible on user level. I assumed that this is not possible. If the server use encryption, everything is encrypted. Is it so or are t… --- ## [Purpose of Nextcloud Encryption](https://help.nextcloud.com/t/purpose-of-nextcloud-encryption/184213)
**Author:** [@simon-forb](https://help.nextcloud.com/u/simon-forb)\ **Replies:** 3\ **Last updated:** [March 26, 2024, 8:47am UTC](https://help.nextcloud.com/t/purpose-of-nextcloud-encryption/184213 "2024-03-26T08:47:08Z")
I have recently installed a Nextcloud on a server run by a commercial hosting provider. To have the highest security available, I have also activated Encryption which is directly available from Nextcloud. As far as I un… --- ## [Files does not open anymore (files not decrypted)](https://help.nextcloud.com/t/files-does-not-open-anymore-files-not-decrypted/182355)
**Author:** [@Blade\_Pif](https://help.nextcloud.com/u/Blade_Pif)\ **Replies:** 5\ **Last updated:** [February 21, 2024, 4:25pm UTC](https://help.nextcloud.com/t/files-does-not-open-anymore-files-not-decrypted/182355 "2024-02-21T16:25:52Z")
Describe the bug Files can not be opened anymore error in log file “Cannot decrypt this file, probably this is a shared file. Please ask the file owner to reshare the file with you.” But error also appear if Im logged …