Chronicles from our peeps.
I was able to discover the crux of the problem from last week. Previously, we were baffled by the fact that the size of the private key that is generated by the server application appears to much smaller than the private key that was generated by XCA, even though they Read more
This is my ninth week of being an intern at Aeste Works. This week was testing whether the lwIP stack had been configured correctly and whether the interface can be successfully initialized. To initialize the network stack in a lwIP single-threaded core, the function lwip_init is called and then the network Read more
So last week, we discovered that client certificates could not successfully be imported in both macOS and Windows operating systems. Testing out with a manually generated certificate using XCA, we were able to confirm that the problem was that the PKCS#12 generated by our application does not contain the full Read more
The Setup Now that I have access to the production server, I had to pull the project’s code from our git repository into the server’s filesystem. Shortly after that, I needed to check if the server application could be built and executed. No major issues in that regard. Everything seemed Read more
This is my eighth week of being an intern at Aeste Works. This week was about setting up and integrating the lwIP stack with the USB CDC ECM device. The device currently does not run with an operating system and so must be configured for the lwIP NOSYS mode using the raw Read more
Time was passing really fast and this was the eighth week of internship. In this week I was working on a Wishbone RAM. To start off, I had to understand the mechanism of a dual port RAM. The dual port RAM fundamentally consisted of an instruction port (read only) and Read more
So I managed to implement the reusing of private keys as part of the renewal process. The problem was that I was calling the wrong API for Botan, which yields an unexpected outcome. Shortly after that, Dr Shawn wanted me to implement one more feature for the application. It basically Read more
In this week I was modifying the Wishbone switch so that it would gave correct signal outputs. To give an overview, the strobe signal from the previous wire must be passed to the next wire after one clock cycle, until it reached the I/O port. As a result, the I/O Read more
This is my seventh week as an intern at Aeste Works. This week was about figuring out which part of my USB CDC ECM code interfaces between the host and device in sending and receiving network packets so that I could integrate the lwIP TCP/IP stack later on. There are Read more
Nothing much to be said for this week. I attempted to implement based on what Dr Shawn suggested to me last week, i.e storing the public and private key pairs in the database, so that the private key could be reused for subsequent certificate renewals. This relies on the user Read more