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How do I encrypt a string in Linux?
- Generate a private/public key pair $ openssl genrsa -out rsa_key.pri 2048; openssl rsa -in rsa_key.pri -out rsa_key.pub -outform PEM -pubout.
- Encrypt the string using public key, and store in a file $ echo “stockexchange.com” | openssl rsautl -encrypt -inkey rsa_key.pub -pubin -out secret.dat.
How do I password protect a text file in Linux?
While editing a file, press Esc to ensure you’re in command mode and not insert mode. Type :X and press Enter. You’ll be prompted to enter a password, which the text file will be encrypted with. Type the password you want to use, press Enter, and type it again to confirm.
