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Questions tagged [encryption]

the process of converting information using an algorithm (or cipher) to render the information unreadable to anyone who doesn't have the algorithm (also known as a key)

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FileVault 2 Full-Disk Encryption Alternative with LDAP Support

Has anyone come across a full-disk encryption alternative to FileVault 2 for macOS with better LDAP user support? I've been trying to identify a solution for macOS Mojave that: offers pre-boot, full-...
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How to prevent auto mounting of encrypted APFS volumes by diskarbitrationd

running 10.14.5 on a 2019 iMac. diskarbitrationd is responsible for noticing the appearance of new block devices and mounting them. this kind of auto mounting can be prevented by configuring /etc/...
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How can I mount an encrypted disk image so that it is read-write?

I have created an encrypted disk image containing a folder whose contents that I want to keep secure, using the disk utility app. I am able to mount this either by clicking on the image or by using ...
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How does the iTunes “Restore” erase method on MacOS compare to “Erase All Content and Settings” within iOS from a security view?

The “Erase all content and settings” option in Settings obliterates all the keys in Effaceable Storage, rendering all user data on the device cryptographically inaccessible. Therefore, it’s an ...
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Slow read performance in Mac OS X terminal, with external encryption enabled hard drive

Anyone experienced really slow performance with Mac OS Extended (Journaled, Encrypted) file systems? I have git LFS project on my hard drive and for some reason even as simple as cd project-folder ...
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How do scheduled backups work on encrypted dmg and filevault 2

Under mojave with CCC5 on a 2019 iMac, I intend to clone an encrypted startup disk (filevault2) to a destination volume that will also have filevault enabled. When the system boots up the startup disk ...
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Keychain password from my Gmail address is gibberish

I have a fairly simple password for my bla@gmail.com address, let's call it foobar123 If I open 'keychain access' app on MacOS, under keychains -> login, category -> all items, I can see bla@...
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Decrypt Safari's Form Values file

Back on Mac OS 10.7, there was an encrypted file called Form Values in the folder /home/Users/${user}/Library/Safari. This encrypted file contained all "auto-fill" form values in Safari. I don't know ...
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How to force Disk Encryption password on boot for ALL users?

I want my MBP to be unlocked with Disk Encryption Password before getting access to the login screen. (read : I want to have two passwords prompts before the MBP can be used) Therefore, I made a ...
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Automatically Mount Encrypted Core Storage Volume (10.14.4+)

Prior to Mojave 10.14.4, macOS would automatically attempt to mount locked Core Storage volumes, and if the necessary password was found in the current user's keychain this would occur automatically. ...
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Encrypted drive log of mounts/unmounts?

Do encrypted volumes contain any log telling when they were mounted and unmounted? I have several encrypted USB thumb drives and I would like to know whether someone has tried to put them into ...
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How do I use my GPG agent for SSH everywhere?

On my system, I'm trying to set up SSH authentication through my GPG agent (installed via brew). So far, I have this working in my terminal thanks to adding the following lines to ~/.profile: # ...
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unlock macOS encrypted Volume on linux

How can i unlock a Partition that has been created and encrypted using Apples Disk Utility on a linux machine? There are 2 formats one can encrypt Volumes with Disk Utility : CoreStorage encrypted ...
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Disk encryption format for external drives that works on both macos and linux

Is there any disk encryption scheme or format that can be used on both macos and linux? Linux cannot read Apple's drive encryption format, and LUKS is not supported on MacOS. I tried using VeraCrypt ...
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Private / Public Key

Provisioning profiles are available in ~/Library/MobileDevice/Provisioning\ Profiles. But, when creating a Certificate Signing Request, where are the public and private key stored on Mac OS? Meaning,...
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Creating Encrypted Time Capsule disk is taking DAYS!

I bought a G-Drive 8TB external USB-C hard drive to use as a Time Machine disk for my new 15" 2018 MacBook which is appointed with 32GB of RAM & 4TB SSD storage. Snappiest MacBook you can buy, or ...
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Full Disk Encryption with Time Machine Backup

I don't know the appropriate setup to encrypt whole disk drive using FileVault 2 and Automatically backup it without issues. Currently, I'm using a 2nd-gen Intel i7 MBP running macOS High Sierra 10.13....
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Decrypting external HD via terminal, seems stuck

I originally started to encrypt an external drive via right clicking the image and hitting "encrypt". It got to about 4% progress when I decided to reverse the process. Running OSX Sierra. I ran a ...
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Certificate encrypts, but won't decrypt emails

I obtained a .p12 file from my employer for its internal public key infrastructure that should allow me to sign, encrypt and decrypt emails. I have installed it as a profile on my iOS device and can ...
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FileVault alternative

Re. this question on Super user, I can't use iPad + Luna as primary monitor and FileVault simultaneously. My question is then, is there another way to conveniently encrypt the Document folder on the ...
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macOS Mojave hibernatemode 25 | Dark Wake/ sleep wake

I have set hibernate mode to 25 and the standby time to 0 in macOS Mojave. Now my idea is that the Mac goes to deep sleep (no power to RAM). Most of the time it works; if I open the lid I see this ...
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Timemachine backups to Encrypted APFS partition. Checkbox turn off encryption

I am trying to use a newly created APFS encrypted case sensitive APFS partition with Time Machine backups. If I do not check the box encrypt backups, it prompts for the password to turn off encryption....
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Multiple Time Machine backups, both encrypted and unencrypted

I have an unencrypted Time Machine backup with a long history. I'm planning to add a brand new disk to the Time Machine, and use both to do backups simultaneously. The new disk will be stored in an ...
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287 views

How does FileVault work compared to LUKS

I currently use LUKS to encrypt my the drive of my Linux computer. I am planning to buy a Mac and want to enable full-disk encryption. With LUKS you will be prompted for your password before the ...
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334 views

Updating to Mojave & enabling FileVault at the same time

Recently I decided to update to Mojave. Additionally, FileVault encyption was mandated remotely. Upon the reboot all hell broke loose. The output of "diskutil apfs list" tells me Macintosh HD is "Not ...
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How can I decrypt my HD?

I'm trying to decrypt my disk and turn off FileVault, but I can't do that. Firstly, the Turn Off FileVault... button is disabled. Locked Unlocked Secondly, I try sudo fdesetup disable with Terminal ...
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APFS encryption passphrase questions

Out of curiosity, I have a couple of questions regarding APFS passphrases. Using diskutil I found out that each APFS encrypted volume includes several cryptographic users, which at least in my system ...
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Does FileVault encrypt the disk instantly?

I have recently found that FileVault is disabled on my machine. Although I remember that I set "encrypt" option when I was setting the machine up. I opened System Preferences and enabled FileVault. ...
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How to use HFS+ encrypted partition as Time Machine backup drive

I formatted one partition on my external drive as MacOS Extended (Journaled, Encrypted). Now when I open Time Machine and want to use that partition I see a checkbox Encrypt backups. Because I don'...
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iPhone thief phished iCloud password. Can they decrypt iPhone contents?

Long story short, a close friend had their iPhone stolen a few months ago. Just yesterday they got a text saying their phone was found with a link claiming to show the phone's location. Unfortunately, ...
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APFS Encrypted vs APFS + FileVault?

I upgraded the SSD in a Mac Mini and I'm reinstalling Mojave via internet recovery. The disk is completely erased right now, and when creating a new partition it asks me if I want to choose APFS or ...
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Encrypt drive with private key?

Is there any way to encrypt my drive with a private key, and no external tools (to be installed), and then unlock via command-line? I'm referring to my second drive and not my boot drive. I’m not ...
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How an I confirm my Bluetooth 3.0 Keyboard is encrypted?

I have a MacBook pro Retina 15, Late 2013 running Mojave. I also have an off brand Bluetooth 3.0 Keyboard ( GeneralKeys PX-4068-675 ). The keyboard connects fine to the MacBook WITHOUT asking for a ...
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Password protecting a macOS .dmg file with a keyfile instead of a password, without using veracrypt

I need to create either an ISO, ZIP archive, or DMG image on Mac OS that is LOCKED, and can only be unlocked and decrypted using a special external keyfile. Essentially, this is the exact same thing ...
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Opening/saving encrypted zip file from iOS mail app

I have a problem with opening an encrypted/protected by a password zip file from an e-mail in an iOS mail app. I can enter the preview of the file, however it is a blank page with the file name only ...
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Mounting encrypted HFS partition after messed up partition table

I have an external 2 TB Harddisk that had a 1.5 TB exFAT Partition and a 500GB HFS+ encrypted Partition. I wanted to shrink the 1.5 TB to 1 TB. I used https://www.diskgenius.com/ to shrink the exFAT ...
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MacOS automatic external drive encryption/decryption

Question MacOS does offer automatic disc encryption for at least 2 "types" of hard drives in the system: Internal APFS Hard Drive with FileVault External Time Machine Hard Drive (If set up in Time ...
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How can I verify the backup password for an iOS device?

In iTunes, my iPad shows itself as backing up to "This Computer", and the "Encrypt Local Backup" button is checked. I believe I know the password, but I would like to be sure. How can I verify that ...
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Is iMessage open source?

My Google searches didn't turn up very many results on the subject. If it is open source, can someone link to the documentation?
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Are iMessage encryption keys sent to all listed devices even if they're broken?

Are iMessage encyption keys sent to all authenticated devices listed under Apple ID, even if the device isn't powered on and is broken?
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How to encrypt external network drive timemachine backup

I am following this: https://www.makeuseof.com/tag/turn-nas-windows-share-time-machine-backup/ Which basically says that you have to create a sparse disk image and put that on your external network ...
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1answer
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Decrypt files recovered from encrypted external hard drive

I am trying to recover the data from one of the external hard drives of my company. I ended up using DiskDrill to extract all the files into a new, non-encrypted hard drive. Unfortunately I made the ...
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278 views

External drive APFS encryption secure?

I just erased a newly purchased external USB disk using the Disk Utility program and set it to use the file system APFS Encrypted. I entered a strong password and the whole process took about a minute,...
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What is the character limit for an encrypted USB drive password in Disk Utility?

Is there a character limit for an encryption password when formatting a USB drive as Mac OS Extended (Journaled, Encrypted) in Disk Utility? I was able to use a very long 65-character password but was ...
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1answer
425 views

Newly-created SSH keys landed in my home folder rather than `.ssh` folder after creating with `ssh-keygen`

I used the ssh-keygen utility bundled with High Sierra to create keys, as directed by this page title How to Create SSH Keys with OpenSSH on Linux or macOS at DigitalOcean.com. Oddly, the prompt to ...
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93 views

Disable ECDSA SSH Host keys

I would like to disable ECDSA SSH host keys. I deleted the existing keys: $ sudo rm -f /etc/ssh/ssh_host_ecdsa_key* I uncomment ECDSA in /etc/ssh/sshd_config $ grep -i ecdsa /etc/ssh/sshd_config #...
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Is there a way to encrypt a folder and then only allow certain processes to have access to that folder?

I'm aware of technique for creating encrypted folders using disk utility. But I believe once it is unlocked and mounted, any process owned as you or root could read that folder. I'm looking for a ...
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Why am I getting “Time Machine is backing up an encrypted disk to an unencrypted disk” when I'm not using encryption?

I have a new MacBook Pro 2018 model. It is using APFS but I have not enabled File Vault. I'm backing up to a Synology NAS, just but when I run my backups, I get the message: Time Machine is ...
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51 views

iPhone - Whats the matter with the Passcode?

I'm just thinking about the passcode to unlock the iPhone. You have to retype the passcode regularly. Winter is coming - so wearing touch-gloves are fine for using the iPhone. To unlock the iPhone, ...
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Cloud storage encryption

Is it recommended to encrypt files stored via cloud. For example, although certain cloud repositories encrypt data in transit - should I still use a secondary encryption tool for cloud storage? ...