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 gives "boot file not written" error

I'm trying to enable FileVault 2 in Mountain Lion, but a few steps into the process of turning on the encryption I get the error "Boot file not written" and the encryption fails to succeed. Anyone ...
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TLS Certificate for SMTP Server

I have an e-mail account that uses a TLS client certificate as an additional layer of security on both incoming and outgoing e-mails. NOTE: This is different from simply encrypting the connection (...
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Decrypting with gnupg just halts and does not work

I couldn't find a solution to this: I cannot decrypt my precious files anymore (on my main computer). I am using pass which relies on gnupg. Trying to decrypt a file just halts and doesn't give any ...
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Is there any way to decrypt a hardware-encrypted internal SSD?

My mid-2019 MacBook Pro has a fault on the mainboard that causes it to crash soon after (sometimes while) it boots. I’m trying to get the data off the internal SSD. When I boot it in target mode (by ...
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What is minimum MacOS version to decrypt external Mac hard disk encrypted through Finder?

If you want to encrypt and password protect an external Mac HD/SSD and don't want to reformat it (because, perhaps, it already has data on it), one can use this technique, which involves right-...
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dd macOS disk – encrypted after dd

I am trying to clone a regular macOS disk (iMac to MacBook – MacBook connected in disk mode) with APFS (not encrypted or something). For this I am using dd to clone the whole disk. Strange is, that ...
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fatal error: openssl/conf.h: No such file or directory | Home-brew OpenSSL on MacOS

Question It seems like gcc can't read the headers in the include folder of OpeenSSL. Shouldn't the flags I added in the ~/.zprofile help with finding that, though? What am I missing? Original Task ...
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How do I set password and AES 256 for external HDD?

I want to set a password and AES(128/256) encryption for my external HDD so one has to enter a password to gain access. How can I do this? I’m asking because I don’t see such an option in Disk Utility ...
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App store connect (erroneously?) does not prompt me for encryption exempt documents

I have a LOB app that allows users to encrypt files with a specified password. Hashing is used to derive a fixed length-key which is then used by AES to encrypt the content. (It also uses HTTPS and ...
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File Vault decryption paused, switch to external?

I have an old MacBook Pro that was running super sloooow. I decided to upgrade to an SSD. The original drive was encrypted, so I wanted to decrypt before I cloned the drive. I think that's where I ...
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How to recover encrypted/locked volume on M1 Mac with recovery key, missing password?

I set up my new M1 Macbook Pro about 3 months ago and made a separate volume for safekeeping things inside. This volume shows up in Disk Utility, described as "APFS Volume, APFS (Encrypted)" ...
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Big Sur automatic hfs_convert to APFS STUCK at 10% on external rotational drive

So I have a 3TB external rotational drive that I only ever used with older macOS versions. Big Sur then decided to automatically do a background hfs_convert to APFS on the external rotational drive ...
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Recovery of deleted files from an iPad 2

I'm trying to recover a book (actually, just a video in the book) made by Book Creator on an iPad 2. The book was deleted and is no longer in recently deleted items. As far as I understand it is not ...
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I have an incomplete physical encrypted iPhone backup that quit halfway through. Can I rebuild it with pieces from a complete backup?

I have an iPhone 6s running iOS 13.5.x, it was in the middle of a physical backup to my MacBook Pro when the iPhone started to bootloop (shortage of memory, Error 14). I have half of a complete backup....
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Extreme hardening of my Macbook pro from physical hacking

Is the a way to double encrypt my macbook pro? I have followed a guide to harden my macbook pro but I wanted to know if I can harden it more. I have for example used file vault to encrypt my disk and ...
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User folder on a different, AFPS Encrypted volume as Home folder?

I have one of these iMac 5K which came with 128 GB Flash storage and 1 TB HD as Fusion Drive. Very quickly I replaced the disk with 2 TB SSD. For some time, I used the Flash as boot & apps & ...
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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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How can I *unlock* a CoreStorage volume that is not recognized?

I have a 4TB Seagate Expansion Portable Drive with <1 TB data. It's HFS+, GUID Partition, encrypted with File Vault. It was unplugged without disconnecting, and now the disk image does not mount. ...
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Recover overwritten Encrypted OS X volume (APFS)

Is there a possibility to recover a 2TB APFS partition that has been altered by a fomatting command to a new 2TB APFS partion (i.e. the real data has not been deleted, encryption password is knonw, ...
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How to create a Windows Compatible Encrypted disk image?

I need to send a file over Email securely. My idea was to use a Disk Image containing the file. Unfortunately, the person who I am sending the file to has a PC running Windows 10. I need a way (...
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How to encrypt a Disk Image with Touch ID?

I have a MacBook Pro 2017 with Touch bar, and therefore Touch ID. I have tried to setup everything that I can to use Touch ID including login and to authenticate the sudo command. I create a lot of ...
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How to Add Password Control to Open Folder

I'd like to add protection to a folder on my computer (OSX El Capitan) where it requires a password for a user to open it in finder. I've tried googling this and all the answers seem to involve ...
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Unable to access older time machine backups after turning file vault off?

I've had FileVault turned one since I purchased my Mac. I recently turned it off and I've found that I can no longer access my older backups from when FileVault was enabled. Is there any way to gain ...
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How to mount VeraCrypt full disk encrypted volume in read write mode under macOS?

I am able to mount VeraCrypt full disk encrypted volume under macOS Sierra, but I am not able to write to it. The VeraCrypt disk shows read-only as false, but I don't have permission to write. The ...
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Is there a way to have an encrypted folder on macOS with fast read/write operations?

I've tried and used Disk Utility to create an encrypted image, so I can store data in it securely. However, when I tried to write files to this image, the write operation was too slow (to write ~50 GB ...
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iTunes refuses to deactivate encryption for backups

I have an iPhone 5S which I used to backup towards my old MBP. At some point I moved to a new MBP and I realized that I had forgotten my backup encryption password. Obviously there is no point to a ...
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Can't encrypt SanDisk 8GB

I've formatted my SanDisk flash drive to a OSX Extended format with the GUID Partition Map. But when I go to encrypt the drive I continually get this error: "A partition, not a whole disk, is ...
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Mac OS X 10.10.5 - How can I get remote access with Apple Screen Sharing with an activated Apple FileVault

I'm a developer and work from home. At home I use an Apple MacBook Pro. At work I have a Mac mini with OS X 10.10.5 and FileVault enabled. This machine is on and booted to the login screen. Other ...
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Fatal: Unknown scheme: SHA512-CRYPT - is This mac related?

You can see from the output of the samples shows in the first case, that SHA512-CRYPT seems to be Unknown. The code I used is from a Linux based tutorial on setting up Postfix+Dovecot+MySQL on a site. ...
Harry McGovern's user avatar
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CoreStorage encryption fails - Is it possible to have multiple encrypted partitions on an external drive?

I have a 2TB WD MyBook Studio drive connected via FireWire to my MBP. What I would like to have is two encrypted partitions. So what I do: Disk Utility > Partition and then right click on each ...
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decrypting FileVault2 WDE seems stuck, how to unstick?

This is happening on an MBP Mid2010 running Mac OS X 10.9.3 I have been using FileVault2 full-disk encryption for several years now; however, I needed to decrypt to repartition the disk for BootCamp. ...
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iOS 5 now encrypts my text message backup?

I've always used MesaSQLite to open the SQLite database that stores my iPhone's text messages. I've also used python's sqlite3 module to programmatically do some things with my text messages. After I ...
alexpelan's user avatar
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Prevent macOS Sierra from prompting for the password for other encrypted volume

If dual boot is used to run a second macOS installation off a different volume on the same hard disk, and that volume is encrypted, booting the first macOS will prompt for the encryption password for ...
Make Mark's user avatar
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John the Ripper and sparsebundle password help

Around January 2014, my original hdd died on me, I bought a new hard drive and let the old one sit. Got myself an external enclosure recently, to recover my old work, only to realize my main folder ...
Liath's user avatar
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How does my just-booted and encrypted iPhone still receive messages before I decrypt it with the passcode?

It's my understanding that personal data on the iPhone 6 is automatically encrypted with the user's passcode. This is why when you boot it for the first time the passcode is required instead of the ...
curiousitio's user avatar
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Is it possible to encrypt a hard drive that is dual booting ubuntu using rEFInd?

I recently installed ubuntu on my macbook pro. I am using rEFInd to dual boot ubuntu. Following the installation, I tried to encrypt my Macintosh HD partition by first converting the disk to core ...
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How are password protected Numbers files encrypted?

Does anybody know the security details behind password-protected spreadsheets in Numbers? I've checked the documentation on Apple.com, but it's not exactly flush with technical details. From Password-...
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macOS gpg decryption permission denied

I'm encountering an issue with GPG decryption when I try to decrypt a file with: gpg -decrypt filename.gpg I receive the following error messages: gpg: public key decryption failed: Permission denied ...
Joel's user avatar
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Prompt for password for encrypted root partition on every boot

I have a MacBook Air A2681 13" and I'd like to disable the auto unlock on the root partition so it prompts for a password on every boot before unlocking the root partition, loading the OS and ...
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Can I restore from Time Machine even when encryption is not finished?

My external drive is not encrypted and therefore the Time Machine takes FOR EVER to encrypt the disk after backing my computer up. I estimate about 1 to 2 weeks minimum with the computer on every ...
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How do I dedicate more of my machines resources to a specific task?

I don't know how FileVault even got turned on in my 2012 MacBook Pro running MacOS Catalina.. But it's been trying to do its initial encryption for 4 days now, over the past 20 hours I have simply let ...
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APFS Sparse Bundle Encrypted images on HFS+ HDD

macOS is no longer allowing me to use HFS+ encrypted for external disks. Is it safe to create a 20TB encrypted sparse bundle disk image on a HFS+ formatted mechanical hard drive? If so, can I use APFS ...
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Volume based encryption for different OS sharing the same disk

On my macbook M1, I created two volumes (one for my professional activity and one for my personal activity). Each volume has it's own macOS. The goal is to prevent remote administrators of one of the ...
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What is currently a good way to format and encrypt an external drive so that it's usable on both Mac and Linux?

I've looked at the threads on this, noting that there doesn't appear to be any new discussion since 2019. I would like to be able to encrypt an external drive, but still have it readable across ...
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Does the iPhone have an unencrytped boot partition?

I'm trying to understand how the iPhone (and any other device) accomplishes its full-disk-encryption. When I have experimented with this on a Linux machine, when I encrypted the disk with LUKS ...
Kalcifer's user avatar
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Does the Apple File System Reference specify the wrong encryption algorithm?

I’m trying to understand encryption in APFS. The Apple File System Reference (p. 136) states several times (steps 2, 5 and 7) that unwrapping is performed “according to the algorithm described in RFC ...
joriki's user avatar
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How do I compress an encrypted time machine disk image?

I have an archived read-only Time Machine drive sitting on a NAS. It is a straight dump (made with dd) of a CoreStorage encrypted HFS+ hard disk. It's taking up 10TB, and I expect that the much of the ...
Glyph's user avatar
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Timemachine multiple passwords

I have several standard user accounts on a Mac OS computer. I have setup a timemachine backup. This backup is protected by a password. So files are encrypted on the external backup drive. Each user ...
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Encrypted file image access

I have 3 users on a mac os computer: Administrator user A: Standard Account user B: Standard Account User A should not see User B files. And User B should not see User A files. User A has an ...
Bob5421's user avatar
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How to TurnOn FileVault for (Macintosh HD - Data) while it is already On for (Macintosh HD)

I saw on the Apple documents on their website ( Here: https://support.apple.com/en-us/HT210650 ) that Macintosh HD is read-only volume called maybe "startup disk" for system files and user ...
alphatask's user avatar