Dan Guido dguido

Important organizational announcement Due to feedback from several people who wish to contribute, this project is being moved to it's own repository. The master copy is now at SalusaSecondus/CryptoGotchas. This will let us more easily take PRs/Issues and track contributions.

Introduction

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Context

This is for programmers who want to ramp on Go, without resources that reiterate programming fundamentals. This would not be a good list of resources for folks who are learning to program using Go as their first language. Some resources that I dismiss here would be super valuable for newer folks. This is a selection of resources for those who understand programming fundamentals in a different language already.

Advice

First steps = Tour of Go
Don't waste time on Go Fundamentals-type books - it all lives in tour of Go.
Consider joining the Gophers Slack
When you need help, the Go Playground allows you make a quick scratch file and share it. Others trying to help can run your code easily this way.

Answers to Deep Questions about Solidity

The following list of questions was taken from https://www.reddit.com/r/ethereum/comments/72reba/do_you_have_deep_questions_about_solidity_or_the/

An updated summary on the different ways one could have two contracts interact (DELEGATECALL, STATICCALL, libraries, all that stuff) with clear pros/cons for each (gas cost, whether it requires EVM assembly directives, etc)

Question by /u/drcode

I won't talk about low-level opcodes here because of the brevity of the answer. In general, there are four ways functions can be called in Solidity:

#Loading Tweaks in the Simulator

With the latest updates to the simulator, this turns out to be pretty simple:

You need to be using kirb/theos

In order not to require MobileSubstrate to be loaded and your tweak to be compiled for i386/x86_64, add

In your makefile:

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?

The purpose of this document is to make recommendations on how to browse in a privacy and security conscious manner. This information is compiled from a number of sources, which are referenced throughout the document, as well as my own experiences with the described technologies.

I welcome contributions and comments on the information contained. Please see the How to Contribute section for information on contributing your own knowledge.

Most VPN Services are Terrible

Short version: I strongly do not recommend using any of these providers. You are, of course, free to use whatever you like. My TL;DR advice: Roll your own and use Algo or Streisand. For messaging & voice, use Signal. For increased anonymity, use Tor for desktop (though recognize that doing so may actually put you at greater risk), and Onion Browser for mobile.

This mini-rant came on the heels of an interesting twitter discussion: https://twitter.com/kennwhite/status/591074055018582016

	<?xml version="1.0" encoding="utf-8"?>
	<SiPolicy xmlns="urn:schemas-microsoft-com:sipolicy">
	<VersionEx>10.0.0.0</VersionEx>
	<PolicyTypeID>{A244370E-44C9-4C06-B551-F6016E563076}</PolicyTypeID>
	<PlatformID>{2E07F7E4-194C-4D20-B7C9-6F44A6C5A234}</PlatformID>
	<Rules>
	<Rule>
	<Option>Enabled:Unsigned System Integrity Policy</Option>
	</Rule>
	<Rule>

	#!/usr/bin/env bash
	#
	# american fuzzy lop - corpus minimization tool
	# ---------------------------------------------
	#
	# Written and maintained by Michal Zalewski <[email protected]>
	#
	# Copyright 2014, 2015 Google Inc. All rights reserved.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");