initial key $\displaystyle K_1$ = (124)(3)
firstly, i need help with finding out $\displaystyle K_2$ and $\displaystyle K_3$
then once i have those keys, i need to work out an 8-bit plaintext from the ciphertext 10011110
initial key $\displaystyle K_1$ = (124)(3)
firstly, i need help with finding out $\displaystyle K_2$ and $\displaystyle K_3$
then once i have those keys, i need to work out an 8-bit plaintext from the ciphertext 10011110
That is the shortest cipher text I've seen.
Since the Feistel algorithm is for both encryption and decryption, you have the end result. Plug that back into the $\displaystyle K_1$ round and proceed.