---

mkdir openssl_lab && cd openssl_lab && \
echo "My secret message." > secret.txt && \
cat secret.txt && \
openssl version && \
openssl enc -aes-256-cbc -salt -in secret.txt -out secret.enc -pbkdf2 && \
ls -l secret.enc && \
cat secret.enc && \
openssl enc -aes-256-cbc -d -in secret.enc -out decrypted.txt -pbkdf2 && \
cat decrypted.txt && \
diff secret.txt decrypted.txt && \
openssl enc -aes-256-cbc -d -in secret.enc -out wrong.txt -pbkdf2 && \
cat wrong.txt