Initial Commit for Preprint

Author: tillschlueter

README.md

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+# PreFence
+
+This repository contains the code artifact for the paper "A Scheduling-Aware Defense Against Prefetching-Based Side-Channel Attacks", to appear on arXiv as preprint.
+
+It comprises the following components:
+
+- `kernel_patch/`: A patch for the Linux kernel (v6.6.14). It extends the `prctl` system call to expose the `prefetch_disable` flag of a process to userspace and updates the scheduler to implement our countermeasure on Intel x86_64 CPUs.
+- `evaluation/`: A collection of small test programs and scripts that we used to evaluate PreFence (as presented in Section 6 of the paper).

evaluation/6_2_fetchbench/README.md

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+# Fork of FetchBench
+
+We forked this directory from [the original FetchBench repo at c657517](https://github.com/scy-phy/FetchBench/tree/c657517348a15cd0eb3a790a89e50710e21a5d1b)
+
+Our main additions:
+- Additional tests for the behavior of prefetchers when they are disabled: [`fetchbench/src/testcase_stride_strideexperiment.hh` (ll. 288-516)](fetchbench/src/testcase_stride_strideexperiment.hh) [`fetchbench/src/testcase_stride.hh` (ll. 905-1007)](fetchbech/src/testcase_stride.hh)
+- `mod-ctrlpf`: A kernel module that allows controlling the prefetchers on Intel processors and the ARM A72 through a low-overhead `ioctl` interface
+
+We omit parts of the original repository that are not related to our project (`aes-attack`, `covert-channel`).
+
+---
+
+(original README.md below)
+
+---
+
+# FetchBench
+
+Code artifact for the submission ["FetchBench: Systematic Identification and Characterization of Proprietary Prefetchers"](https://publications.cispa.saarland/3991/1/ccs23-fetchbench.pdf) to CCS2023.
+
+This repository contains:
+
+- `fetchbench/`: Our prefetcher identification and characterization framework (sections 3 and 4)
+- `aes-attack/`:  Our first case study (section 5.1): leaking parts of an AES key through the Cortex-A72 SMS prefetcher
+- `covert-channel/`: Our second case study (section 5.2): a covert channel between normal world and secure world based on the Cortex-A72 SMS prefetcher

evaluation/6_2_fetchbench/fetchbench/.gitignore

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+build/
+*.json
+*.svg
+*.log

evaluation/6_2_fetchbench/fetchbench/3rdparty/json11/LICENSE.txt

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+Copyright (c) 2013 Dropbox, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.