# beVX challenge on the operation table

DevFeed: [beVX challenge on the operation table](<https://devfeed.tech/articles/bevx-challenge-on-the-operation-table-39704.md>)

Original publisher: [Read original article](<https://doar-e.github.io/blog/2018/03/11/bevx-challenge-on-the-operation-table/>)

Author: Axel "0vercl0k" Souchet

Published: 2018-03-12T00:22:00Z

Content type: tutorial

Language: en

Sources: [Diary of a reverse-engineer](<https://devfeed.tech/sources/diary-of-a-reverse-engineer.md>)

Topics: [Reverse Engineering](<https://devfeed.tech/topics/reverse-engineering.md>), [Security](<https://devfeed.tech/topics/security.md>), [Encryption](<https://devfeed.tech/topics/encryption.md>), [Cryptography](<https://devfeed.tech/topics/cryptography.md>)

Tags: [bevx](<https://devfeed.tech/tags/bevx.md>), [conference](<https://devfeed.tech/tags/conference.md>), [encryption](<https://devfeed.tech/tags/encryption.md>), [private-key](<https://devfeed.tech/tags/private-key.md>), [reverse-engineering](<https://devfeed.tech/tags/reverse-engineering.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

A write-up of solving the beVX reverse-engineering challenge from OffensiveCon2018. The article explains how to set up the challenge locally, analyze its encryption service, and exploit the server to retrieve the private key.

## Source excerpt

Introduction About two weeks ago, my friend mongo challenged me to solve a reverse-engineering puzzle put up by the SSD team for OffensiveCon2018 (which is a security conference that took place in Berlin in February). The challenge binary is available for download here and here is one of the original ...