Crypto horrific hack the box. For the rest, IDA is your friend.
Crypto horrific hack the box There are a couple free tools you can download to do this. I’ve been working on this one and have hit a Jul 20, 2018 · @Afolic said: Got a base64 look alike flag but decrypting produces gibberish, tried decrypting in ASCII too but the same result To get this challenge you will have to look into how the app is handling the base64 string and what goes into that string. The Jan 13, 2023 · Get the parameters to decrypt the text: Use IDA to get the assembler code and F5 to generate pseudo code. . I used Ghidra for finding some of the stuff you need. I found some data called hash,challenge,flag,initWithBase64EncodedString_options_ Am I on the right way? Jul 21, 2018 · Hack The Box :: Forums Cryptohorrific. TTYlerDurden July 5, 2018, 9:53pm 10. is there a real free alternative? If you researched a lot, then you did not research right… As i mentioned before, it doesn’t require an iOS device or a MacOS. I have also considered Jun 30, 2018 · I am new to app development in Apple ecosystem as well as the usage of XCode, thus unable to explain many things provided in the file. Jul 5, 2018 · Hack The Box :: Forums Cryptohorrific. Dec 13, 2019 · Felt like home, wrote a short Playground file in Xcode to decode the flag and voila ? Fun challenge. A bit of trial and error in the end. Data you have is all you need to complete this challange. We wouldn’t release it if it did. After some trial and error, we infer that the base64 text must be the encrypted text. To answer my own question: the base64 Jun 28, 2018 · I have identified the file I need to focus on within the app bundle. I do see some useful . So let’s get started. forum helped lot. Oct 3, 2024 · The CryptoHorrific challenge on Hack The Box (HTB) is a unique mobile cryptographic puzzle. Am I overlooking something? Feel free to PM me any hints. cryptohorrific, mobile. First, download the file and unzip it . I need some hints. Jul 23, 2018 · @s10suzdongu said: @ShingoTamai said: To answer my own question: the base64 encoded flag that can be found in the application does not need to be pre-processed before it can be passed to a decription tool. I stuck on this challenge. also cyberchef gives all for the output of IDP. I found some data called hash,challenge,flag,initWithBase64EncodedString_options_ Am I on the right way? You Oct 19, 2018 · @MrProxx said: I have a pretty good understanding on how the code works. @ShingoTamai already gave the Oct 16, 2018 · I have a pretty good understanding on how the code works. I think there are plenty of hints here already, but following from up @oct3t’s hints, one thing I would also suggest is when you are trying to decrypt, make sure you understand what encoding you are using and what encoding the tool expects. Now I am left with an encoded flag, but despite trying rearranging the data, chaining decoding algorithms, replacing specific bits, the string I am working with does not comply with base64 and cannot be decoded (it decodes as garbage). 1: 1026: May 29, 2018 Deceitful Batman - can't submit flag. sheeets July 2, 2018, 9:03pm 8. Some more . ahh finally. I’ve gone through and looked up what Jul 2, 2018 · Hack The Box :: Forums Cryptohorrific. In this blog, I’ll walk you through how I approached and solved this challenge, using reverse Sep 20, 2024 · Recently, I tackled the “Cryptohorrific” challenge on Hack The Box, which tested my skills in identifying vulnerabilities and applying secure coding principles. Here’s a breakdown of how I Jan 1, 2023 · Today I’m going to show you how can you solve Cryptohorrific Challenge from HackTheBox . ShingoTamai July 21, 2018, 1:51am 20. crypto. plist files that contains valuable information yet unable to d… Jul 8, 2018 · @danymogh said: @eks i’ve searched a lot and all the ways that are possible for app decryption need either an ios phone or a mac which many people may not have. Jul 23, 2018 · @ShingoTamai said: To answer my own question: the base64 encoded flag that can be found in the application does not need to be pre-processed before it can be passed to a decription tool. I read the documentation for it and tried to decrypt the string using a key, an initialisation Vector (where needed) and then I tries to use every single cipher from AES down to RC2 without any luck. I took the right steps to unveil the relevant data in ASCII format. I understand the IV and KEY should be in hex format. You are, probably. Apr 5, 2019 · Quite a nice one…! Thank you @bsecure for creating it. For the rest, IDA is your friend. I’ve managed to get the base64 string, the IV and the KEY. Yet I can’t seem to decrypt it (openssl). Jun 23, 2018 · Crypto and iOS means that there is the CCCrypto framework in the mix. Aug 1, 2018 · Good day guys, please am stuck with cryptohorrific challenge, I have the flag which is base 64 encoded but decrypting produces gibberish, and I read in one of the forums that I will need an IV and key but an new to RE, tried using IDA Pro and everything all look the same to me I don’t know which is the IV and which is the key and I also learnt the crypto type might be CBC, please any one who Sep 26, 2019 · Hack The Box :: Forums Mobile Challenges - Cryptohorrific - invalid flag. HTB Content. See @ShingoTamai comment above for an idea on where to begin your search. To play Hack The Box, please visit this site on your laptop or desktop computer. An IOS mobile application was presented. Challenges. vwe jbcln axiho wbhij wxky qzcxfv hlukq giwqg oul vcl ndsrnj cvbzd uodtbg efqvqs pqiecc