$4$ Task $3$: Decryption $($Lab is called SEED LAB Secret Key Encryption Lab and can be found online$)$

In this task, we will play with decrypting an image. In the files.zip, you will be able to find an image file

secret.bmp$.$ If you use an image viewer to open secret.bmp$,$ you will see that the picture is not

meaningful, as it has been encrypted. Your task is to use openss$1$ enc and$-$aes$-128-$ecb to decrypt this

image to find out its original look. You will need to read the manual of the openssl command $($by typing in the

command "man openss$1$ enc" in your terminal$)$ to figure out a way to decrypt the image. The encryption

key is given to you, which is $123456.$ Please attach the decrypted image in your report.