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)

learn more… | top users | synonyms

0
votes
1answer
22 views

open bitlocker USB stick on mac os X

I have a USB stick encrypted by Windows 7 built-in tool (bitlocker). I would like to open it on my Mac OS X El Capitan. When I open it, all I get is a file "BitLockerToGo.exe" and another "Read ...
3
votes
1answer
26 views

Is there any part of OSX that gets a significant speed boost from Intel AES instructions?

I've been comparing some specs between Mac Pro models, specifically with the jump from Harpertown (a.k.a. Core 2) to Gulftown/Westmere (a.k.a. Core i7). While there were expected incremental ...
0
votes
0answers
29 views

Permanently Decrypt non-CoreStorage Partition Encrypted with FileVault

I am asking this on the behalf of someone who did not want to sign up for the SE network. I will use first-person for simplicity. When I bought my computer, it came with FileVault enabled as default. ...
0
votes
0answers
14 views

How can I make a secondary encrypted volume open during the boot process?

When booting off a FileVault encrypted volume, OSX is capable of accessing the volume for the boot process once the user has entered their password at FileVault prompt. I want to configure my system ...
2
votes
0answers
14 views

Difference between FileVault and setting a partition format to Mac OS (Journaled, Encrypted)

Since I have multiple partitions (some for Linux and some for Mac OS) I can't enable File Vault. It somehow complains that it can't do the encryption, given that there are other partitions. Now what ...
0
votes
1answer
32 views

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 ...
0
votes
1answer
28 views

Can iPhone storage be read without the 4-digit password? Or is it encrypted?

I had a problem with the digitizer connector in my iPhone 5S so I can't use the screen anymore, I couldn't even unlock it to back it up. So I send it to a logic board specialist to replace damaged ...
3
votes
1answer
36 views

OpenSSL encryption method doesn't work on El Capitan

The following file encryption method works on OS X Yosemite: Encrypt: openssl enc -aes-256-cbc -salt -in file.zip -out file.zip.enc Decrypt: openssl enc -aes-256-cbc -d -in file.zip.enc -out ...
-3
votes
0answers
40 views

TrueCrypt OSXFUSE error

I am quite late in stopping the use of TrueCrypt. In the meantime I wanted to open my encrypted files in order to move everything to another app. But this time I tried to open and I got this alert: ...
1
vote
1answer
34 views

In which part of iOS is the auto-erase feature implemented and how does it work?

I followed the Apple vs FBI case a bit, and I'm super curious how Apple implemented the auto-erase feature. Reading their documentation, it seems like it is as simple as erasing a key that is used to ...
0
votes
1answer
59 views

Apple Mail doesn't show when a mail is encrypted (using S/MIME)

I have recently started using S/MIME since we got a certificate from our school and are advised to use it when possible. I am using El Capitan 10.11.4. The encryption and decryption process ITSELF ...
0
votes
1answer
50 views

unlock external locked encrypted disk with applescript command by filling dialog box to cracking password by force brut

I make a terrible mistake. I totally lost my paper with the secret password for my encrypted external GUID hard drive. This external drive contains many pictures but also some works documents very ...
0
votes
0answers
51 views

How to list failed login attempts on Mac OS X 10.11 El Capitan (FileVault enabled)?

Just now, something strange when I open my Macbook Pro Retina : the password entry was locked for 30 seconds and a tooltip saying me to use the machine's encryption passphrase to unlock it. I wonder ...
1
vote
1answer
57 views

iTunes local backup of iOS device: can't disable encryption

I have a strange problem with iTunes local backup of an iOS device (an iPod, in this case). I know I've backed up the iPod to my computer before, but iTunes states, "Latest Backup: Your iPod has ...
0
votes
2answers
32 views

Always ask for password when mounting encrypted partition

I have an external disk with partitions A and B. B is an encrypted HFS volume with as password. (Presented as "Apple_CoreStorage" or "Logical Volume OS X Extended"). When I connect the drive, OS X ...
2
votes
1answer
113 views

Does FileVault protect against ransomware?

I've already asked a question about ransomware on OS X in general. But I failed to get a response regarding whether FileVault protects against it. That is what this question is about. I'm also ...
0
votes
0answers
7 views

Preview of pictures in Cloudfogger wanted

I used to work with Cloudfogger on Windows. I like it there. On Mac I do not like the implementation that much. For example the preview of photos does not work from within Finder. Does anyone have a ...
3
votes
2answers
59 views

Do files copied to an encrypted disk image (dmg) encrypt themselves?

Disclaimer: I'm not sure whether or not this belongs in Ask Different or security.stackexchange.com, but I'm using a .dmg and Disk Utility, so I'll put it here. End of disclaimer. The title says most ...
0
votes
1answer
41 views

Error when encrypting .dmg disk image

I have a .dmg file of approximately 32 GB and I want to encrypt it. When I try to, using Disk Utility > Images > Convert, I get an error "status 28". Any idea what this means?
3
votes
1answer
32 views

How do I encrypt emails using Apple Mail?

Gnu PGP was integrated into Mail using this project, but it appears to be dead (only supports old versions of OSX) http://www.sente.ch/software/GPGMail/English.lproj/GPGMail.html Is there any other ...
7
votes
3answers
569 views

TrueCrypt alternative for Mac OS X

I'd need to create an encrypted volume on my MacBook Pro running OS X El Capitan. It's been a while since I needed to do something like that, I think it was 2010 when I used TrueCrypt. I know that ...
0
votes
0answers
36 views

howto encrypt “WD My Passport Pro” online? support.wdc.com with dangerous solution (no security)

I wish to encrypt my WD My Passport Pro drive. I receive error With Google I found An error message occurs when attempting to create an encrypted backup on a My Book Thunderbolt Duo in the Mac ...
6
votes
2answers
460 views

Logging in to main user turns off the mac

I am not a mac user, and honestly, I have no idea how to use one (besides the terminal). So, a friend asked if I could help them out with fixing their computer. She says the last thing she was on, was ...
1
vote
0answers
28 views

Is TRIM enabled for FileVault encrypted disks?

On a stock MacBook Pro without FileVault, TRIM should be enabled out of the box according to wikipedia. Infosec experts warn against TRIM in conjunction with full disk encryption. When ...
0
votes
2answers
38 views

Need a cli to check the sha256 hash of a file

To check the sha1 of a file I would use openssl sha1 <file> I'm not sure what to use to check the sha256 hash of the file however, what would you recommend?
0
votes
0answers
23 views

Can data be recovered from a drive which was encrypted

I encrypted a USB drive of 16 GB few months back and stored files on it. Yesterday I destroyed its encryption using terminal diskutil cs list command without realizing that it had important data ...
3
votes
3answers
131 views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
0
votes
1answer
11 views

I've added a second HD into my Macbook 2011 instead of CD-ROM. Is it safe to encrypt it using Finder?

Years ago I changed my cdrom in my Macbook for a second hard drive, and have been using a SSD as a first drive ever since. This HD is shown in Finder, and, clicking on it with two fingers, there's an ...
1
vote
1answer
155 views

How to open an encrypted dmg file in Windows?

I made encrypted disk image on my MacBook. Now I want to open it on my PC (Windows 10). How can I open (mount) an encrypted dmg image file in Windows 10?
0
votes
0answers
53 views

Keychain multiple

I´m new with Mac OS X, my system is El Captain 10.11.3. A few days ago I use keychain to generate two certificates for special purposes with other email address, do the export and all is ok. As I ...
1
vote
1answer
31 views

10.11: Good Samaritan message not showing on Filevault2 unlock screen

You can set up a lock Message under System Preferences => Security & Privacy => General => Set Lock Message. This Message is stored in NVRAM. Under 10.9 Mavericks it was not only shown on ...
0
votes
1answer
104 views

OS X 10.11 Disk Utility, encrypted dmg password and keychain

In previous versions of Disk Utility there were checkboxes whether to store the password in the keychain or not while creating an encrypted dmg image. Now there are less options. Does the new version ...
1
vote
1answer
29 views

Change encrypted internal HD permissions to prevent password prompts

I have an iMac (running OS X 10.11.3) with a dual disk setup. A ssd for the OS (with Filevault turned on) and a HDD for storage that is formatted OS X Extended and Encrypted. The intention is to ...
2
votes
1answer
192 views

Encrypt FAT USB drive under El Capitan (10.11)

I have a USB drive I would like to encrypt. It's formatted in FAT (for use with Mac & Win) and I can't seem to find a way to encrypt it as: FileVault doesn't encrypt FAT. TrueCrypt can be ...
0
votes
1answer
30 views

Is there a limit on logical volume size for FileVault?

I'm curious about (and was unable to find documentation for) any size limits for FileVault in OSX (10.9.5 Server). I'm concerned about any sort of corruption/instability that could occur after ...
1
vote
1answer
31 views

Protect files from other administrator accounts

So at work there is a "shared" server that people can run things on that take a long time. I make quite a bit of use of this machine to the point where I made my own login to separate my user files. ...
1
vote
0answers
30 views

Can a Standard User format an encrypted drive?

I have recently partitioned my drive into a trap OS. If my Macbook is stolen I want to give the users access to use the device to increase the chances they will connect it to the internet and I can ...
5
votes
2answers
173 views

Encrypt External Hard Drive for Mac and Linux

I have an external hard drive that I backup with Time Machine. I'm trying to determine the best way (or if it's even possible) to encrypt it so that Time Machine can still back it up and it can be ...
1
vote
1answer
41 views

Does using Sleep with FileVault negate some benefits of FileVault?

As I understand it, FileVault makes you login before you computer boots to the OS in order to unlock the drive. This means someone getting ahold of your laptop when it is off cannot get at the data. ...
0
votes
1answer
292 views

How to encrypt exFAT on external drive?

I have a lot of data on my external drive. The file system is the exFAT. I believe it is not possible to encrypt that filesystem with FileVault. Do you know how (tool maybe) to encrypt exFAT on an ...
0
votes
1answer
34 views

How to secure my mail in iOS? [duplicate]

Can you please advise what is the best application for email encryption using iPhones and iPads?
0
votes
0answers
16 views

I have the password but can't recover data from my encrypted filevault USB drive

I can open the drive and see the top level folders. Sometimes I can see file names, sometimes I can't. If I attempt to remove the encryption I get an error message. It's the same from the Finder or ...
0
votes
0answers
41 views

Is possible to create bootable encrypted partitions of Win10 + Debian + DATA on external SSD?

I'm dealing with pretty tricky problem. I want to have external disk completely separated from OS X running on internal SSD. On external SSD should be three partitions: Windows 10 - is possible to ...
0
votes
0answers
61 views

Store SSH public/private keys in iCloud Keychain

Is this possible? When going into the "Keys" category in iCloud Keychain, the + button seems to be disabled.
0
votes
1answer
42 views

How do I get my iPhone backups open

I'm trying to extract my old iPhone's backups. I'm using the iPhone Backup Extractor, and it tells me the status of my backup is "complete and encrypted". I don't recall ever encrypting my backup so ...
0
votes
1answer
23 views

Formatting mac and encrypted memory

Currently I have a 128GB SD for data in my macbook, but is encrypted using utility. If I format my mac, the stored key will be gone. How can I do this safely? Is there any way to do this without ...
0
votes
2answers
96 views

how safe is an HDD encrypted with filevault?

I have a macbook pro and I want to encrypt the whole system with filevault. My question is now, how secure are my data for removing hard disk from device and mount it in an external case? For ...
1
vote
1answer
24 views

Encrypted Hard Disk troubleshooting

I have problems to read an encypted hard disk. Unfortunatly I do not remember if I did encryted with Time machine or Disk Utitlity. I think I did it with the first one (Time Machine) as I used the ...
0
votes
1answer
113 views

Is it possible to encrypt the boot disk in El Capitan?

On my iMac running OS X 10.11.3 I'd like to encrypt as much as possible of the built-in disk -- like that I don't need to worry about replacing/sending in a broken disk. From a casual few web ...
2
votes
1answer
570 views

How (in)vulnerable is OS X to encryption ransomware?

These days, malicious software seems to be infecting Windows computers, encrypting their data against their will, and asking for a Bitcoin ransom in exchange for the encryption key. In order for ...