Encrypt files mac command line

Contents

  1. Mac OS X 10.9 Mavericks
  2. How to encrypt files on your Mac
  3. Set a Zip Password in Mac OS X
  4. Mac encrypt file command line

This works for almost any file, image or document, and from most applications that support the macOS print options. It can be an image through the Preview app, a website through Safari or a TextEdit document. Keep in mind that this method will always result in a PDF file so you lose the ability to edit. It is, however, ideal for quickly protecting a file if it has to be sent to someone.

Your needs may vary slightly, so pick what works for you in that moment. If you are creating a new document in Pages, Numbers or Keynote we're sticking with the free, built-in apps here there is no need to save your document as a PDF; open it in Preview and password protect it from there. You can password protect the actual document and keep it as an editable file.

To password protect your Pages, Numbers or Keynote document, click here and follow these steps:. If, for whatever reason, you cannot password protect the file itself, then the file needs to be compatible with another operating system or any of several scenarios; wrapping the file, files or a whole folder in a. Any file, whether it's an image, document or video, can be archived. Size is not an issue either but will depend on what you're doing with the archive once it's created.

If you're sending it through email, you may be limited to 20MB unless you use iCloud's Mail Drop or a mail host that's not stuck in Creating a password protected archive is convenient if you need to send a handful of files quickly, securely and if it needs to be compatible. So if you're sending this to a Windows user, he or she can open it. If you plan on creating large archives for storage or to transport on a flash drive, I recommend using the above mentioned encrypted disk image instead. Creating a password protected zip is unfortunately not as easy as the above mentioned methods, it will require the use of the command line.

This is your Mac's name, directory location and your account username. It will be there before every command you enter. In this example I have a file on my desktop "Kitties.

Mac OS X 10.9 Mavericks

JPG" that I want to put in a password protected. So in Terminal I'd type the following: zip -ej "zip -ej " including the space at the end will tell the Terminal you want to create a zip archive zip with encryption e and no file paths included j. Now you have to tell it where to save the zip file and what name it must get. The simplest way to do this is to drag the file you want to encrypt into the Terminal window.

JPG Now hit enter and Terminal will prompt you for a password. Terminal will not show any cursor movements while you are typing the password. Hit enter and you will be asked to verify the password by typing it again. Hit enter a third time and Terminal will create the zip archive. Attempting to open it will result in a password prompt as intended. You'll notice the Archive Utility that automatically opens when a.

A security flaw in my opinion so if you don't want to give away what kind of information may be contained in the file, give it a generic name before zipping it.

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How to encrypt files on your Mac

Archiving a Folder. We just gave the change directory cd command and pointed Terminal straight o the desktop.


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To archive a folder I have found that typing out the directory path like we did before does not always work so specifying the save directory prior to giving the zip command is far more reliable. The command to archive a folder is also slightly different: zip -er As with archiving a single file, "zip" tells Terminal what kind of archive to create and the e in -er tells it to encrypt the file.

In this case the r means recursive which tells Terminal to grab all the folder contents. Since we're already pointed at the desktop, specifying the saved file name does not require any path information, In my case I am saving it as "files. Your Mac may be set up like Fort Knox , but your backups are done on an external drive or server.

If your backups are not encrypted an unauthorized user doesn't need to go through all the trouble of accessing your Mac, they can take your backups instead.

Set a Zip Password in Mac OS X

Luckily, Apple makes it very easy to encrypt your Time Machine backups. There are two ways to go about this, I will cover both. In this example, I will walk through the first time setup of Time Machine. The process for backing up to a server or Time Capsule is mostly the same as backing up to an external drive or external drive partition. Follow these steps to backup data to a server or Time Capsule:.

If you need to send a file to someone, see if they use iMessage. For sharing files between two or more Macs that occupy the same space office, Starbucks, etc. As long as your Mac is within 30 feet of another Mac, you can use AirDrop to wirelessly send files. No existing Wi-Fi network required, so this will work even in the middle of a park. The sender and recipient Mac create a network between them which is encrypted and secured by firewall, so it's a secure connection even if other Macs are within range and have AirDrop enabled.

There you have it, all the built-in ways macOS lets you use encryption and password protection without spending a dime! Do you know how many people post this information, yet fail to give clear instructions? It is truly amazing how clueless some people are — all that work for useless information that ends up confusing and frustrating people.

You are not this at all. You are outstanding! A safe bet is to open the zip file without extracting the content within, in order to preview what is contained in the file for information on how to do so, see below. One of the worst types of zip file attacks is called a zip bomb pictured , which can hide thousands of terabytes of information inside a miniscule file. A zip bomb will cause your computer to crash and your hard drive to become unresponsive. If you recognize the information and content within the source, you are free to proceed with extracting the zipped file.

You can also run the file through your antivirus software.


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  • Though computers running older versions of Windows used to need a third-party tool in order to zip and unzip files, computers running MacOS have had the option to compress and decompress files for years built right into the operating system, making it easy to zip and unzip files as needed. First, find the file or folder you want to zip.

    No matter whether you are compressing a single file or a folder, the compression system with Archive Utility works the same.

    Mac encrypt file command line

    To open the compression menu, right-click on the file or folder inside Finder or on your desktop. Depending on the size of your file or folder, it may take some time to finish the compression step. For small files, the compression will occur almost immediately, and you will see a new file in the same directory as the unzipped file. Unzipping your file or folder, or unzipping a file or folder sent to you over the web, is just as easy as compressing the document.

    Locate the. To unzip the file, just double-click. A new, unzipped file will appear in the same folder or directory as the zipped file. While compressing and decompressing files on MacOS is incredibly easy, creating a password-protected zip file on your Mac takes a little more patience and effort than simply right-clicking on a file. Though MacOS can create a password-protected compressed file without the aid of an additional program or application, you will have to use Terminal on your Mac to enter commands manually into your computer.

    If you have never used Terminal before, it can seem terrifying or even impossible to do correctly. Rest assured, though — entering commands into your computer is a pretty simple task as long as you follow the instructions laid out below. Alternatively, you can use third-party software such as WinZip which, despite the name, does have a Mac version or Keka, an open-source alternative to WinZip, to place a password on your compressed files without having to use the command line.

    Press enter to set your directory. Once you have entered your directory and made sure the file or folder you wish to zip and password-protect is in the proper location, enter the following command without quotes and without brackets.


    • How to Create Encrypted Zip Files on Mac;
    • Opening the Password Protected Zip?
    • How to Encrypt a File or Folder in OSX?
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    • Password Protect Zip Files in Mac OS X.
    • Make sure to enter the file extension of your corresponding file; here, the file extension is. Finally, make sure the zip file you are creating matches the name of your original file or folder e. Once you hit enter from this command, you will be prompted to enter a password into Terminal.

      You will notice that even though Terminal has a cursor, it appears that nothing is being entered into the field on your computer and the terminal is not moving. This is entirely normal and expected, and is treated as a privacy aspect of Terminal. Although it seems like nothing is being entered, Terminal is tracking which keys you enter. Since you cannot check your password to verify a lack of typos, be as careful as possible when typing it out; a typo can render your zip file inaccessible.

      Hit enter, then enter your password again to verify. This new zip file can be sent to anyone regardless of operating system. Now that you know how to use Terminal, you can check the contents of a zip file without opening it.

      Using GPG to encrypt and decrypt a file

      As above, use Terminal to navigate to the folder where your zip file is. The resulting dialog will show you the files inside the zip file, when they were created, their original file names, and their original size.