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# Requirements To create an account, you'll need the **Authenticator** app or any other that supports TOTP (time-based one-time passwords), since I don't want to store this kind of information in my database. :) ## What's next? Once you have it, go to the [sign-up](/sign-up) page and check if...

### First Part **Look at the files** ``` │>PHISH_MARKET │ docker-compose.yml │ start.sh │ ├───market │ Dockerfile │ market │ wait-for-it.sh │ └───mysql Dockerfile init-db.sql ``` As you may have noticed, there are 2 Docker...

### First Part Well, since the description was rather brief, we can't learn much from it. Therefore, it's a good practice to start examining the application by running the command: ``` strings program.ext ``` in Linux to see what ASCII strings are stored in the application. On...

## The Discrete Logarithm Problem Now that you understand modular arithmetic, we can move on to its applications. In the previous post, we discussed how to perform modular computations. Now, it's time to learn how these computations are used in cryptography. Calculating the remainder in an...

## Get Familiar with the Task I assume you've already read the description and noticed that the flag in this challenge resembles a familiar Base64 encoding. However, after decoding it, you see what looks like a series of random bits: ``` Q††Ð¤~“ĦZƒòÕöï!益§.§ä>îÓF7­Oþ²ë†Y+æèZs¶ ·¨2...

 ## Get Familiar with the Task In the first step, you have to figure out what the main task in this challenge is. As you may see, there is a text input form that updates the **textContent** depending on a strange-looking **if** statement. If you can manage to make this...