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Go Assembly Mutation Testing

While maintaining and developing the Go cryptography standard library, we often spend significantly more time on testing than on implementation. That’s good and an important part of how we achieve our excellent security track record. Ideally, this would be especially true for the least safe parts of the library. However, testing assembly cores presents unique challenges, due to their constant-time nature. This has been a long-standing issue. For Go 1.26, I am working on introducing a mutation

Bought an Ampere Altra System

In the hunt for a development machine, I got to the next phase. I did some shopping, and there it is: my own Ampere Altra-based system. Why? As you may have read in my previous post, I used several AArch64 systems for local development. And the latest one, an Apple MacBook Pro, is nice and fast but has some limits — does not support 64k page size. Which I need for my work. Let’s go cheap So I have decided to buy myself an Ampere Altra system. As cheap as possible. AArch64 server parts The