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118 lines
5.7 KiB
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118 lines
5.7 KiB
Markdown
[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (FinalCrypt – An Open Source File Encryption Application)
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[#]: via: (https://itsfoss.com/finalcrypt/)
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[#]: author: (Ankush Das https://itsfoss.com/author/ankush/)
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FinalCrypt – An Open Source File Encryption Application
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======
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I usually don’t encrypt files – but if I am planning to organize my important documents or credentials, an encryption program would come in handy.
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You may be already using a program like [GnuPG][1] that helps you encrypt/decrypt your files on your Linux machine. There is [EncryptPad][2] as well that encrypts your notes.
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However, I have come across a new free and open source encryption tool called FinalCrypt. You can check out their recent releases and the source on its [GitHub page][3].
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In this article, I will be sharing my experience of using this tool. Do note that I won’t be comparing this with any other program available out there – so if you want a detailed comparison between multiple solutions, let us know in the comments.
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![FinalCrypt][4]
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### Using FinalCrypt to encrypt files
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FinalCrypt uses the [One-Time pad][5] key generation cipher to encrypt files. In other words, it generates an OTP key which you will use for encrypting or decrypting your files.
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The key will be completely random as per the size of the key – which you can specify. So, it is impossible to decrypt the file without the key file.
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While the OTP key method for encryption/decryption is simple and effective, but managing or securing the key file could be an inconvenience for some.
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If you want to use FinalCrypt, you can install the DEB/RPM files from its website. FinalCrypt is also available for Windows and macOS.
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Once downloaded, simply double click to [install it from deb][6] or rpm files. You can also build it from the source code if you want.
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### FileCrypt in Action
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This video shows how to use FinalCrypt:
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<https://youtu.be/6Ir8VcZ26E4>
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If you like Linux related videos, please [subscribe to our YouTube channel][7].
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Once you have installed FinalCrypt, you’ll find it in your list of installed applications. Launch it from there.
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Upon launch, you will observe two sections (split) for the items to encrypt/decrypt and the other to select the OTP file.
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![Using FinalCrypt for encrypting files in Linux][8]
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First, you will have to generate an OTP key. Here’s how to do that:
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![finalcrypt otp][9]
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Do note that your file name can be anything – but you need to make sure that the key file size is greater or equal to the file you want to encrypt. I find it absurd but that’s how it is.
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![][10]
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After you generate the file, select the key on the right-side of the window and then select the files that you want to encrypt on the left-side of the window.
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You will find the checksum value, key file size, and valid status highlighted after generating the OTP:
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![][11]
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After making the selection, you just need to click on “ **Encrypt** ” to encrypt those files and if already encrypted, then “ **Decrypt** ” to decrypt those.
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![][12]
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You can also use FinalCrypt in command line to automate your encryption job.
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#### How do you secure your OTP key?
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It is easy to encrypt/decrypt the files you want to protect. But, where should you keep your OTP key?
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It is literally useless if you fail to keep your OTP key in a safe storage location.
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Well, one of the best ways would be to use a USB stick specifically for the keys you want to store. Just plug it in when you want to decrypt files and its all good.
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In addition to that, you may save your key on a [cloud service][13], if you consider it secure enough.
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More information about FinalCrypt can be found on its website.
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[FinalCrypt](https://sites.google.com/site/ronuitholland/home/finalcrypt)
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**Wrapping Up**
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It might seem a little overwhelming at the beginning but it is actually a simple and user-friendly encryption program available for Linux. There are other programs to [password protect folders][14] as well if you are interested in some additional reading.
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What do you think about FinalCrypt? Do you happen to know about something similar which is potentially better? Let us know in the comments and we shall take a look at them!
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/finalcrypt/
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作者：[Ankush Das][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/ankush/
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[b]: https://github.com/lujun9972
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[1]: https://www.gnupg.org/
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[2]: https://itsfoss.com/encryptpad-encrypted-text-editor-linux/
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[3]: https://github.com/ron-from-nl/FinalCrypt
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[4]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt.png?resize=800%2C450&ssl=1
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[5]: https://en.wikipedia.org/wiki/One-time_pad
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[6]: https://itsfoss.com/install-deb-files-ubuntu/
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[7]: https://www.youtube.com/c/itsfoss?sub_confirmation=1
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[8]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt.jpg?fit=800%2C439&ssl=1
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[9]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt-otp-key.jpg?resize=800%2C443&ssl=1
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[10]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt-otp-generate.jpg?ssl=1
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[11]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt-key.jpg?fit=800%2C420&ssl=1
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[12]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt-encrypt.jpg?ssl=1
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[13]: https://itsfoss.com/cloud-services-linux/
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[14]: https://itsfoss.com/password-protect-folder-linux/
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[15]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2019/02/finalcrypt.png?fit=800%2C450&ssl=1
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