HowTo: Encrypt a File $ openssl enc -aes-256-cbc -salt -in file.txt -out Options If you want to use the same password for both encryption of plaintext and decryption of ciphertext, then you have to use a method that is known as symmetric-key algorithm.įrom this article you’ll learn how to encrypt and decrypt files and messages with a password from the Linux command line, using OpenSSL. OpenSSL is a powerful cryptography toolkit that can be used for encryption of files and messages.
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