Let’s see how asymmetric encryption works and how is it different from Symmetric encryption which we generally use. It uses the concept of Asymmetric encryption. In this blog, I’ll tell you what GPG is and how you can use it to encrypt and decrypt files in the Linux system. How can you protect that from unauthorized access? One of the ways is encrypting the files using GPG. But what if the data you are storing is sensitive. In our next articles, we will come up with more Linux based tricks and tips.In Linux, you keep your data in form of files. In the above article, we have learnt – Learn how to Encrypt and Decrypt a file using GPG command on Linux. To decrypt the above file, use the following command – $ gpg -o abc.txt -d Ībove the command de-crypts the file and stores in same directory. The sample output should be like this – abc.txt Final_Url_Weight.csv site_health_depth5.txtĪbc.txt.gpg FINAL_URL_WEIGHT.db tp_Crawled_few.txtĮxtracting_keywors.py final_url_weight_sqlite.py Decrypt a File using GPG To verify it, use the following command – $ ls In the above command, it is encrypting abc.txt file. To encrypt a file using GPG, please use the command as shown below – $ gpg -c abc.txt While encrypting and decrypting a file, it will ask to Enter passphrase(password) and Repeat passphrase to secure a file Encrypt a File using GPG update-trustdb update the trust database refresh-keys update all keys from a keyserver search-keys search for keys on a key server gen-revoke generate a revocation certificate delete-secret-keys remove keys from the secret keyring delete-keys remove keys from the public keyring check-sigs list and check key signatures c, -symmetric encryption only with symmetric cipher b, -detach-sign make a detached signature Hash: MD5, SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224Ĭompression: Uncompressed, ZIP, ZLIB, BZIP2ĭefault operation depends on the input data There is NO WARRANTY, to the extent permitted by law.Ĭipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH, This is free software: you are free to change and redistribute it.
License GPLv3+: GNU GPL version 3 or later The sample output should be like this – gpg (GnuPG) 1.4.20Ĭopyright (C) 2015 Free Software Foundation, Inc. To get more information about GPG, use the following command – $ gpg -h This article explains about – How to Encrypt and Decrypt a file using GPG command on Linux. However, GPG provides the additional benefit to encrypting your data on a priority basis and transfers them securely over the internet. There are many choices on hand to secure your data.
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