Using GPG to encrypt and decrypt a file

in this quick video you can see how to use GPG commands to encrypt and decypt a file.
- demo using GnuPG/GPG CLI
- GPG to encrypt and decrypt a (data) file
- Key lifecycle - Export and import keys (public and private keys)
------------------------------------------------------------------------
Install:
--------
apt-get install gnupg
List keys:
----------
gpg --list-secret-keys
gpg --list-keys
Generate keys:
-------------
gpg --full-generate-key
OR
gpg --gen-key
Export/Import keys:
-------------------
gpg --export -a Melvin > melvin_public.key
gpg --import melvin_public.key
gpg --export-secret-keys Melvin > melvin-private-key.key
gpg --import melvin-private-key.key
Encrypt & Decrypt
-----------------
gpg -e -r "Melvin" users.csv
gpg --always-trust -e -r "Melvin" users.csv
gpg -d users.csv.gpg
gpg --batch --passphrase demo users.csv.gpg

[@philchapman7980]

Thanks for the tutorial of GPG. By far it’s the best I have been able to find on the internet.

[@googlewalle8904]

I work with Encryption Appliance solutions but never had the need to understand Exporting/Importing keys (due to separation of duties these days) and it really just helped me understand another important component where you can separate out the Private and Public keys and Encrypt files at another source. Excellent video Melvin and great job explaining it.

[@machinarum]

Great video! It goes straight to my library. I will share the link if someone asks me about the subject.

[@motivationadda163]

OMG man you nailed it, i wasted days but this 18 min video saves me

[@ehabbustami7691]

Thanks for clear and organized explanation for the GnuPG CLI.

[@borjonx]

Thank you from 1.5 years later! Exactly what I needed. Clear, concise & to the point. Thank you also for having your commands pre-typed; that saves time & we can pause as necessary.

[@melvinl5797]

Welcome 😀

[@Mohitparmar1830]

i need gpg encrypted so any have contacts me teligram @decoded4444

[@genkiferal7178]

what he said. thanks for typing it all out so we can practice along with the video...pause video, then cut and paste into our own terminal.
i would like the comment and video, but since Google doesn't trust me/us with the power to dislike, i figure i cannot be trusted to like, either. i might mess it up somehow.

[@FranciscoLegonDev]

Thank you for such a clear step-by-step explanation. This is great content

[@saarang4637]

Fantastic video, to the point information.
Thank you for helping me understand how to use gpg :)

[@michaelbenett410]

Certified GOAT. thx a lot

[@SelectFrom]

Thank you a lot for the clear explanation!

[@egorshumanskii8026]

Finally I get it. Thanks so much! Good job!

[@majorblazer9055]

thanks so much and thanks for providing the examples, copy pasted to my cheat sheet :)

[@fs8820]

Liked, subscribed, bookmarked. That was the BEST, clearest demo. Thank you!

[@Uneke]

Ubuntu is a Debian based OS, Debian is a kernel, Ubuntu is not a kernel… just thought I’d correct your remark at 1:40
Other than that, very informative! I’ve been following the Man page of gpg… but I keep running into issues with card keys and a couple other options lol so I gave your bid a try, to get a better scope of things.
Thanks!

[@odigity]

Debian is not a kernel, it's a distribution - kernel + init process + libraries + executables.
The Linux kernel is the kernel.
The term "Linux" technically refers to the kernel, but is colloquially used for all distributions based on the Linux kernel, such as Debian and Ubuntu.

[@chrischiu2335]

Thanks Melvin. It is a great tutorial for the gpg tutorial.

[@hasanerhanaydinoglu3617]

very accurate and useful infromation. thanks

[@douniazedbehloul5766]

pretty cool ! and well explained thank you

[@pharandess]

Very useful thanks lot

[@gawronwwa]

you have a problem with mic volume, we can barely hear you. Nice tutorial though :)

[@cjbaezilla]

Thank you very much Melvin

[@nagarocky]

Great explanation. Simply superb. Thanks.

[@8080VB]

Thankyou so much Melvin 🎈⚡

[@rameshbhilai]

Sir earlier in windows 7 system i encrypted the folder subsequently i formatting the system with windows 10 now when I opening the file it show access denied plz help me

[@BernoTheSage]

Thanks for this video, it's very helpful.

[@gnuPirate]

Great demo, thanks!

[@OthmanAlikhan]

Thanks for the video, very useful =)

[@MrMoscs]

Thank you

[@KhrThy]

Can we set remember passphrase after restarting the machine?

[@RoHanTecH03]

Sir. Also my all file in pc are encrypted by. NLAH. extention please help me plz tell me what to do. Plz sir 😭😭😭😭😭😭🙏🙏🙏

[@saraalobaidli]

How you opened both screens in both sides?

[@Arek_Frac]

good job Melvin!

[@aaronmoon7084]

For encrypt terminal, do I have to open another kali linux vm ? Or can I simply open another terminal on same vm for encryption? I assume the original terminal for decryption...

[@mrinalinivverma]

Hi,
Thanks for the video .
While decryption of the file in Linux, I am getting the following erro. using this command error: gpg -o filename -d filename.gpg You need a passphrase to unlock the secret key for user:"username(remarks)" 2048 bit rsa key , id , created date (main id)
gpg:canncelled by user gpg encrypted with RSA key ID , DATE, "username(remarks)" gpg: public key decryption failed :Operation cancelled gpg: decryption failed: No secret key.
not able to enter passphrase as it is directly adding the error

[@user-hh3uu1ob8d]

Thanks! You a really help!

[@leandroocampos6262]

How do you encrypt more than one file at a time?
In my script I have the following line:
--trust-model always --encrypt --recipient myPublickey "path file"
But I can only encrypt one file at a time, I can't do it per batch.

[@melvinl5797]

Create a tar with the required files. Then you only have to encrypt the tar file

[@workpfeiffer3428]

well done

[@alireza2974]

Thanks

[@R_Ultraloud]

Thanks!

[@philchapman7980]

Please explain the batch so you won't need to enter the passcode

[@philchapman7980]

I finally realized that batch, is a GPG command and not a batch file.

[@ibaadofnaqvi]

How do I decrypt a ransom ware encrypted file

[@AnthonyDentinger]

Normally you can’t ; that’s the point : they encrypt your data and ask you money or something else to give you the private key to decrypt it.

[@m0rphe0-8]

not work, "gpg: agent_genkey failed: Permiso denegado"

[@AnthonyDentinger]

You probably ran the command in a directory that you cannot write to, or you are not allowed to read the file you were running this command for, or you were trying to overwrite a file you weren’t allowed to write to. Use "ls -l" to tell what the permissions of the file and the directory are.

[@georgeunknown2833]

I don't use real name. Instead of it I name myself something like "RaC9veof6ahKaeshie" (generated by pwgen).

[@paullambert1981]

He loses me from the beginning. He doesn't tell me how he got into whatever program he is in. I have no idea how he got into that. Because of that, I am out.

[@melvinl5797]

Let me see if I understand your comment . You don’t understand that I opened a terminal ? You have never used /seen a terminal and you were expecting I only click on buttons in a video. Perhaps I should start my video with “first switch on the computer” to cater to absolute beginners