Encode
# hash
printf 'hello' | sha1sum
sha1sum README.md
# encrypt
openssl aes-256-cbc -salt -in README.md -out README.enc.md
openssl aes-256-cbc -d -in README.enc.md -out README.md
User
whoami
cat /etc/passwd
# hash
printf 'hello' | sha1sum
sha1sum README.md
# encrypt
openssl aes-256-cbc -salt -in README.md -out README.enc.md
openssl aes-256-cbc -d -in README.enc.md -out README.md
whoami
cat /etc/passwd