Quick Tutorial: How to encrypt files using public keys with gpg

This tutorial covers how to encrypt files using public keys with gpg. If you have not created key pairs yet, Click Here for know the steps of generating key pairs using gpg. I assume you have created key pairs, now below are the steps need to be followed:

(1) Extract public keys and save it in current directory

cd .gnupg
gpg --export -a -o user-public-key.txt

(2) Share public keys with another user via mail. A public key is no secret and can be shared via email or any other electronic means. Other users encrypt it by using the public key.

gpg -s -e test.txt

(3) Now decrypt it with private key.

gpg -d test.txt.gpg

Conclusion

This is a quick tutorial to know how to encrypt files using public keys with gpg. You may refer to another tutorial in which you can signing data and verify it using gpg.

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Disclaimer: This tutorial is for educational purpose only. Individual is solely responsible for any illegal act.

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