Posts

This "crypto"-currency is using cleartext in its proprietary wallet

Image
I recently became aware of the cryptocurrency Cortex from cortexlabs.ai. I'm not linking it because I don't intend to endorse it in any way. They purport to provide some AI inference on-chain. Never mind why you'd want that or how they do it. That's not my point today. My point is that this project provides their own proprietary wallet, and that is very bad. Well right below that there is a "MetaMask wallet using custom RPC" section that provides what you would need to connect using another wallet. The problem is that it is both out of date and does not work. Surely, I thought, they've just moved their RPC server and if I can figure out what it is, I can still connect with my own wallet. I just need to download their wallet and take a look. So I took the plunge, downloaded the Chrome extension, and searched the source for things that looked like URLs. What I learned there is that their wallet is just an old forked version of MetaMask. But no obvious RPC UR...
Post a Comment
Read more

A non-orthogonal feature of Golang and how it broke my transpiler

I just ran into a problem that illustrates a couple of strategies for implementing compilers, so let's dig into it and see what we can learn. I'm working on a Go transpiler, that is, a compiler that transforms Go code into different Go code.  One of the properties of this compiler is that we need to reify functions as objects, so function types also need to be translated to interfaces to capture their signatures. For our purposes, let's say we translate: type IntHasProperty func(int) bool into: type  IntHasProperty  interface {      Call(int) bool } This captures the essential input and output types of the function, and we can imagine extending it with generics if we need to. There is one fundamental problem. Suppose in our source code, we write: func (p  IntHasProperty ) IsNot(n int) bool {     return !p(n) } If we try to compile this method, we'd expect to transform the function call site: func (p  IntHasProperty ) IsNot(n int) bool { ...
Post a Comment
Read more