WebIn this paper, we lay the foundations for constant-time in the presence of speculative and out-of-order execution. We focus on constant-time for two key reasons. First, impact: constant-time pro-gramming is largely used in narrow, high-assurance code—mostly cryptographic implementations—where developers already go to WebConstant-time (CT) programming is a software development methodology where programs are carefully written to avoid these channels. In a nutshell, the idea is to only pass secret …
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WebJul 10, 2024 · If constant-time is a non-negotiable goal, one may be forced to use some of the aforementioned tricks to generate branchless code, making the code less clear. Also, performance is often a secondary and quite important goal, so the developer has to hope that the compiler will infer the intended operation behind the branchless code and emit an … WebSep 11, 2024 · SynthCT: Towards Portable Constant-Time Code. S. Dinesh, Grant Garrett-Grossman, Christopher W. Fletcher; Computer Science. NDSS. 2024; TLDR. SYNTH CT … paragon systems background investigator
dblp: Grant Garrett-Grossman
WebCommodity operating system kernels remain monolithic for practical and historical reasons.All kernel code shares a single address space, executes with elevated processor … WebJul 26, 2024 · On many platforms, mult1B_fast (perhaps, made inline) is close to the fastest portable C code free from data-dependent timing variation. However, especially on CPUs lacking a barrel shifter , it may be worth trying the mult1B_shift8 variation, which only shifts by a whole byte: the above technique is applied on the high byte 16-bit variables, hence & … WebFig. 10: DIVL-R32 semantics AST (a) Semantics of DIVL-R32 from the K-framework. DIVL-R32 takes the dividend as implicit inputs in registers rdx and rax and the divisor as an … paragon systems inc number