> For the complete documentation index, see [llms.txt](https://ret2basic.gitbook.io/ctfnote/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ret2basic.gitbook.io/ctfnote/crypto/aes/byte-at-a-time.md).

# Byte at a Time

## Challenge: pwnable.kr crypto1

We have isolated the authentication procedure to another box using RPC. The credential information between RPC is encrypted with AES-CBC, so it will be secure enough from sniffing. I believe no one can login as admin but me :p

Download : <http://pwnable.kr/bin/client.py> Download : <http://pwnable.kr/bin/server.py>

Running at : `nc pwnable.kr 9006`

## Code Review

## Solution

## Implementation

```python
```