Encrypt-decrypt using openssl on the commandline

decrypt.bash

#!/bin/bash

key="sup3r_s3cr3t_p455w0rd"

decrypted=$(openssl enc \
	-aes-256-ctr \
	-d \
	-k "$key" \
	-iv "504914019097319c9731fc639abaa6ec" \
	-in encrypted.txt)

echo "Decrypted message: $decrypted"

# Output: Decrypted message: This is my message, I hope you can see it. It's very long now.

decrypt.php

<?php
$encrypted = trim(file_get_contents("encrypted.txt"));
$iv = hex2bin("504914019097319c9731fc639abaa6ec");
$decrypted = openssl_decrypt(
	$encrypted,
	"aes-256-ctr",
	"sup3r_s3cr3t_p455w0rd",
	0,
	$iv,
);

echo "Decrypted message: $decrypted";

# Output: Decrypted message: ��c��������Pb�j��

encrypt.bash

#!/bin/bash

message="This is my message, I hope you can see it. It's very long now."
key="sup3r_s3cr3t_p455w0rd"

echo "$message" | openssl enc \
	-aes-256-ctr \
	-e \
	-k "$key" \
	-iv "504914019097319c9731fc639abaa6ec" \
	-out encrypted.txt