Help me decode a string if I know the input and the output

My task is for educational purposes, and I have been offered the challenge from a friend, however, I'm stuck on this question:

This task may be fun for some folks. But basically, I think it's AES.

The input: G9S4DZ2 or 35419946942 (which is just base10 of first variable)



which is base64 for: 900HKyJ+TSqvbyaNNpHJXA==

From there, I have no idea what the encryption type is :(

Taidot: Verkkoturva, Python, C-ohjelmointi, JavaScript

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Tietoa työnantajasta:
( 66 arvostelua ) Brooklyn, United States

Projektin tunnus: #28994911

3 freelanceria on tarjonnut keskimäärin $93 tähän työhön


Hello, I am expert Programmer having 5+ years experience. I am ready to help you with it. Please contact me. Thank you Regards, Bilal

$130 USD 2 päivässä
(39 arvostelua)

Hi Interesting. Let me give a try. It is some encoding scheme used. It can be AES but we need to check Best

$50 USD 7 päivässä
(6 arvostelua)

Hello, It's very easy job I can decode from your input and output data I'm ready to start right now Please contact me Best Jose

$100 USD 7 päivässä
(2 arvostelua)