https://roland.zone/ Recent content on roland.zone Hugo -- gohugo.io en-us https://roland.zone/m1-go-benchmarks/ Thu, 19 Nov 2020 09:41:58 -0700 https://roland.zone/m1-go-benchmarks/ Wondering how Go performance on a Apple M1 based laptop compares to an Intel based laptop? The table below contains deltas between performance on a M1 based 2020 13" MacBook Pro and an Intel based 2017 13" MacBook Pro (i5-7267U) for all of the benchmarks in the Go standard library. Given the Intel laptop is a somewhat older model this isn’t going to be a perfect test of M1 vs. Intel performance, but should give a good idea of how they stack up (especially for the entry level models that the M1 chips are now competing against). https://roland.zone/virtualizing-windows-with-pci-passthrough/ Fri, 27 Mar 2020 20:56:10 -0700 https://roland.zone/virtualizing-windows-with-pci-passthrough/ In the last couple years I’ve had little reason to use Windows other than when I get the urge to play video games. Given that it often feels somewhat excessive to have a machine solely for this purpose. I could sacrifice a machine to dual boot but the only suitable one I have, an ageing AMD 1920X box, currently serves as a ESXi host running a number of long lived services. https://roland.zone/about/ Sat, 21 Mar 2020 10:58:02 -0700 https://roland.zone/about/ Hello, I’m Roland Bracewell Shoemaker. Previously I worked at Internet Security Research Group developing Boulder, the software that runs Let’s Encrypt, from scratch. It now powers what is arguably the largest public Certificate Authority. I currently work at Google on the Go Security team. You can find me on Twitter and GitHub. Publications RFC 8555 - Automatic Certificate Management Environment (ACME) RFC 8737 - Automated Certificate Management Environment (ACME) TLS Application-Layer Protocol Negotiation (ALPN) Challenge Extension RFC 8738 - Automated Certificate Management Environment (ACME) IP Identifier Validation Extension (only when writing this list did I notice we messed up expanding the ACME acronym in RFCs 8737 and 8738, whoopsie) https://roland.zone/go-lab-notebook/ Sat, 21 Mar 2020 10:58:02 -0700 https://roland.zone/go-lab-notebook/ 21 June 2021 - Some fuzzing thoughts around call graphs Can call graph analysis provide a better approach to directed fuzzing than traditional block coverage counters? Most traditional directed fuzzing techniques involve breaking a program into basic execution blocks and instrumenting those blocks with counters. These counters are then used to determine whether a mutated input expands the set of blocks which are executed by inspecting the set of non-zero counters. https://roland.zone/replacing-pfsense-with-a-barebones-linux-router/ Sat, 21 Mar 2020 09:41:58 -0700 https://roland.zone/replacing-pfsense-with-a-barebones-linux-router/ After years of suffering a DSL internet connection I recently switched to a provider offering gigabit fiber. Unfortunately my building isn’t setup to get a strand dropped directly into my apartment so instead I have to live with an ethernet drop (this is typically referred to as a Fiber to the Building, or FTTB, setup). After doing away with the awful CPE router I’d been stuck with for the last few years I realized I had an opportunity to replace it with something better.