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by sunfish 2408 days ago
It's not specifically referring to certification or process, it's more about software architecture. It's referring to how the core WebAssembly instruction set has no I/O instructions, so it can't do anything other than what the APIs given to it allow. And with WASI APIs, the goal is for the APIs to have a similar property, where access to external resources are represented by handles, and WASI-level API functions won't let you do anything without being passed a handle.