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@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@Lekensteyn
Lekensteyn / inject-tls-secrets.py
Last active April 30, 2024 10:40
Extracts a subset of TLS secrets and injects them in an existing capture file (requires Wireshark 3.0).
#!/usr/bin/env python3
# Extracts a subset of TLS secrets and injects them in an existing capture file.
#
# Author: Peter Wu <peter@lekensteyn.nl>
import argparse
import os
import shlex
import subprocess
import sys
@paragonie-scott
paragonie-scott / crypto-wrong-answers.md
Last active April 21, 2024 23:48
An Open Letter to Developers Everywhere (About Cryptography)
@bitonic
bitonic / vectorized-atan2f.cpp
Last active April 16, 2024 12:17
Vectorized & branchless atan2f
// Copyright (c) 2021 Francesco Mazzoli <f@mazzo.li>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

Simple Security Guidelines

Using an iDevice? (Best option)

  • Use an iPod or an iPad without a SIM card
  • Use an iPhone
  • Do not jailbreak
  • Always upgrade to new iOS versions
  • Use Brave browser

Need Secure chat?

@andyrbell
andyrbell / scanner.sh
Last active April 5, 2024 09:01
Make a pdf look scanned using ImageMagick
# use ImageMagick convert
# the order is important. the density argument applies to input.pdf and resize and rotate to output.pdf
convert -density 90 input.pdf -rotate 0.5 -attenuate 0.2 +noise Multiplicative -colorspace Gray output.pdf

Foreward

This document was originally written several years ago. At the time I was working as an execution core verification engineer at Arm. The following points are coloured heavily by working in and around the execution cores of various processors. Apply a pinch of salt; points contain varying degrees of opinion.

It is still my opinion that RISC-V could be much better designed; though I will also say that if I was building a 32 or 64-bit CPU today I'd likely implement the architecture to benefit from the existing tooling.

Mostly based upon the RISC-V ISA spec v2.0. Some updates have been made for v2.2

Original Foreword: Some Opinion

The RISC-V ISA has pursued minimalism to a fault. There is a large emphasis on minimizing instruction count, normalizing encoding, etc. This pursuit of minimalism has resulted in false orthogonalities (such as reusing the same instruction for branches, calls and returns) and a requirement for superfluous instructions which impacts code density both in terms of size and

@haasn
haasn / about:config.md
Last active April 2, 2024 18:46
Firefox bullshit removal via about:config

Firefox bullshit removal

Updated: Just use qutebrowser (and disable javascript). The web is done for.

The Freenode resignation FAQ, or: "what the fuck is going on?"

IMPORTANT NOTE:

It's come to my attention that some people have been spamming issue trackers with a link to this gist. While it's a good idea to inform people of the situation in principle, please do not do this. By all means spread the word in the communities that you are a part of, after verifying that they are not aware yet, but unsolicited spam is not helpful. It will just frustrate people.

Update 3 (May 24, 2021)

A number of things have happened since the last update.