Jimmy Posted March 31, 2020 Share Posted March 31, 2020 (edited) Within this Github repository there is a simple C program that performs an XOR encryption on a string with an arbitrary key. Given is hex-encoded bytestream as the result of its use: https://gitlab.com/op8-recruitment/op8-ctf-assessments/-/tree/devel/decode-bytestream The decoded answer is a plain-text alphanumeric string as is the key. The aim is to decode the encoded string within the below code into plaintext and submit the key along with the decoded plaintext: Usage: ./encode "<key>" "<string>" 0x16 0x1a 0x10 0x6c 0x0f 0x02 I am wondering if anyone can help me out in figuring the answer to the right key and string. Thanks. Edited March 31, 2020 by Jimmy i5 10400F • MSI Z490-A PRO • XPG 16GB DDR4 3000MHz • MSI RX 570 4GB • NZXT H510 • Cooler Master MWE 650 V2 Link to comment Share on other sites More sharing options...
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