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Mac encrypt file command line

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Have you ever wondered how to quickly encrypt a file from the command line? Generally, encryption allows you to hide the original contents of a file. With OpenSSL, you can encrypt and decrypt files very easily. Here is what the command would look like:. You will be asked to set and confirm a password before the encryption is complete, do not lose this password or you will lose access to the file.

You can also just use an input file within the filename, but that may cause issues. To prevent any unexpected problems, do not specify the same file as the input and output. This means the original file will stick around either before or after encryption, and you will want to deal with that file individually, preferably through a secure delete method. Similar to what we have for encrypting the file, the command for decrypting the file is as below:. The previously set password will be required to decrypt the file.

Other than switching the placement of the input and output, where again the original file stays put, the main difference here is the -d flag which tells openssl to decrypt the file. The file will remain unreadable until it has been decrypted through openssl again.There are many tools for encrypting files in OS X. GUI apps to do that have varying prices. Unfortunately, OS X itself doesn't have many built-in ways to encrypt a file. I'll show you the two native methods available in OS X.

Encryption is a vast and complex subject. There are many nuances and gotchas. In this article, we'll keep it short and sweet for beginners so that it's easily understandable for a specific, simple task. For those who want to go further and expand their knowledge, I'll list some resources at the end of this How-to. Method 1. Encrypted DMG. A "DMG" file, short for "disk image," can be used as a container to store one or more files if desired. It uses AES encryptionwhich is considered fairly strong encryption.

Password Protect Zip Files in Mac OS X

You've likely seen DMG files before because they're handy ways to distribute software. In this case, we'll encrypt the contents of a DMG file and set a passcode to decrypt it. The example here uses the version found in OS X The Disk Utility File menu.

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You'll see and popup with fields to fill out. The third field, "Name" is the name of the volume that will mount. They can be the same, but make them different to easily, visually differentiate them. As soon as you select the encryption method, AES, you'll be prompted for the passcode. Make it at least 12 characters and don't forget it. After you select a volume size, you can leave the rest of the items as the default. Click save. On your desktop you'll see your encrypted DMG file and also the mounted volume that you named above.

You can drag the files you want encrypted into this volume, then unmount it. Don't forget to delete the originals. Now your data is fairly safe. Your encrypted DMG file looks like this. To access the now encrypted data, double click your DMG file. You'll be promoted for the passcode you entered in step 4 above. The decrypted volume will mount, and you can access the original files.

Now you have a secure container in which you can drag anything you like.Summary: In this blog, we will share the methods to encrypt, decrypt, and recover files from an encrypted or corrupted Mac storage drive.

Recovering data from an encrypted Mac storage drive is achievable with Stellar Data Recovery Professional for Mac tool. Do download the free trial of the software from the below link and use it to see on your own. However, what if you delete important files or the storage drive becomes corrupt. You would want to recover the data, but conventional Mac data recovery tools do not provide recovery from an encrypted storage drive.

To encrypt a storage drive, you can use any one of the following methods that befit your requirement:. After Mac finishes the process, the storage drive is encrypted.

You can unlock the drive by keying in its password. Mac encrypts your disk in the background. You can check the encryption progress from the FileVault section.

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After encryption when you restart your Mac, the system needs the password to finish starting up. Disk Utility now completes the erase process of your storage drive. When it finishes, the drive mounts on the computer, and you can use it to transfer files. If you forget the password, the drive turns inaccessible. Similar to encrypting a storage drive, macOS also makes the process of decryption easy.

To decrypt a storage drive, use any one of the following methods suitable for your case. Mac decrypts your disk in the background. You can check the decryption progress from the FileVault section. It is vital to decrypt data in the right way using the command line as the incorrect operation can result in data loss.

Note : Backup your data from the encrypted drive before executing the below command. You know data recovery from an encrypted storage drive was an uphill task. However, Stellar Data Recovery Professional for Mac made deleted file recovery easier from a password-protected volume s.There are two basic ways to go about this — both using features of things that are primarily intended for a different purpose.

The first is Disk Utility, which is primarily intended as a disk repair and imaging utility. Off we go! To start this encryption adventure, we need to start Disk Utility. Now go find that folder you made and select it. Now, pick your encryption method and save. You can now open this disk image to use files as normal, but when you close the image it will be encrypted.

Enter passwords for whatever options you choose, and save. As you may have noticed, Disk Utility gives you two options, and lets you know that choosing the more secure option is somewhat slower. This is a truism for all security matters — more secure is necessarily slower. You can choose from bit or bit AES.

They will help make it more difficult to gather data from your files or folders, so that you can share or back them up with more peace of mind.

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We recommend a multi-layered approach to security, which is the best way to secure your Mac from all threats. Follow IntegoSecurity. The Mac Security Blog. Search for:. Share Shares.

mac encrypt file command line

Email address:.Do you want to provide the strongest protection for your folders and files on Mac? Use encryption and password protection. Moreover, macOS offers various ways to do that free. No additional apps are required and no fees are charged!

Most users are faced daily with the need to send data using the Internet. This simplifies our lives, but, at the same time, constantly exposes us to the risk that our files could fall into the wrong hands. For example, you were at a private party with friends, and now you all need some way to share information or photographs without anyone else knowing about it, or you might need to send your annual financial report to the boss.

First of all, you should think about securing your Mac itself. This way of encryption protects all the contents on your drive. Set a strong password for your user account. If you have problems with password creation, use random password generator. It will ask you a method of unlocking your disk in case you forget your password to it. The recovery key consists of 24 characters, which you should save. If you choose iCloud, restarting your Mac will be required.

If you pick up the recovery key, another window with it will appear. The FileVault protects your files all the time, even if your Mac is off and you are logged out.

After you log in, the data becomes accessible, so someone can easily get it while you are away from your Mac. A screen saver password can be used for preventing this. Check how it works by throwing your mouse pointer to this corner. The screen saver has to appear immediately. If you want to save your Mac from booting it off some startup device, set a firmware password. You'll see nothing new, but an ordinary login window. But if you try to start your Mac from OS X recovery or another drive, a password field will appear.

It is ready to boot from recovery now. Keep holding that keys and don't be surprised, if it takes a bit of time, it's quite normal.

Then a progress bar should appear. Every time when you or someone else tries to access your Mac from recovery or another startup disk, this window will appear:. And now I'd like to tell you how to protect your files and documents from unauthorized access and not to share personal files with everyone, but only with those people who need it. Here are several ways of doing that, so you are free to choose the one that suits you the best. Honestly saying, this application is often underestimated by Mac users.

One of it's features is the files encryption. I'll show you an example, let's take a random picture This method works for any image or document that can be opened by the Preview app. Maybe you already have a PDF file that has to be encrypted. You can easily do it with the Preview app as well! You'll be able to set a password by clicking 'Show Details' button.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Super User is a question and answer site for computer enthusiasts and power users. It only takes a minute to sign up. Are there any built in command-line tools that I can encrypt and decrypt a text file and provide it some sort of password.

Mac OS X has the ability to create encrypted container files similar to e. Truecryptthat can optionally grow with the amount of data placed in them. Use Disk Utility to do this.

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How to Encrypt and Protect Files and Folders on your Mac

Simple built-in way to encrypt and decrypt a file on a Mac via command-line? Ask Question. Asked 8 years, 3 months ago. Active 4 years, 6 months ago. Viewed 45k times.

Chris W. Rea Active Oldest Votes. You can use the following commands: encrypt file. Bradford 2 2 silver badges 8 8 bronze badges. Dennis Dennis Once you executed any of the above openssl commands, it asks you to enter aescbc encryption password. Wildcard Yes, the salt actually, initialization vector gets stored with the ciphertext in the encrypted file.

KolobCanyon Encryption is never lossy. By definition, it requires being able to decrypt the ciphertext to restore the original plaintext. Just don't forget the key. I've built a shell script for that. You can use it on Mac or on Linux.

Needless use of -a will needlessly bloat the output file. From the command line, the same functionality is available via the hdiutil program. A bit overkill for a single text file intended for command line access, isn't it?If you want to add an extra layer of security to files and folders on your Apple computer, Mac OS X comes with several preloaded options right in front of you. OS X's preloaded encryption services are convenient, but they aren't your only options for protecting your files.

Unlike Microsoft's EFS, which encrypts via the file system, FileVault 2 turns your hard drive into an encrypted volume. Anything stored on your hard drive or at least the partition of your hard drive running Mac OS X will then be encrypted.

You can do so by clicking the Apple icon at the upper left of your screen and selecting "About This Mac. Check the version number in the "About this Mac" window. Beneath the letters "OS X" you should see your version number in gray font. If the number is less than Update your operating system by clicking on the "Software Update button. Make sure you have OS X Recovery downloaded. This is another Mac app that comes with OS X Lion, Mountain Lion and Mavericks, so if you're running one of these operating systems you should be all set.

From the "System Preferences" window, select the "Security and Privacy" icon in the first row. You'll then see a new window asking you to choose which user accounts on the computer will be able to access the encrypted volume you're about to create. If that button is grayed out, it means FileVault is turned off in your system settings.

To turn it on, follow these steps:. Click on the gold-colored padlock icon in the lower left corner of the "Security and Privacy" window.

mac encrypt file command line

You'll be asked to enter the username and password for the administrator account on the computer. Once you do so the gold padlock will switch to look unlocked instead of locked. Choose which user accounts can access the encrypted volume you're about to make.

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The account from which you're making the volume will be checked by default. If you want any other accounts to have access, manually select them.

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Make sure these accounts have passwords set before you choose them. When you're done, click "Continue. Write down your recovery key. You should now see a window displaying a "recovery key" which acts as a backup password for your encrypted volume if you ever forget your account password.

mac encrypt file command line

The key should be twenty-four characters long. The only way to change it is to re-encrypt the FileVault volume.

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Write this key down somewhere and secure it in a safe place. Press "Continue" once you've secured your recovery key. Choose whether you want Apple to store your recovery key or not.


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