nighthawk24

Intorduction

DISCLAIMER: NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK

UPDATED: 14:08am AEST 29/Sept/2020, The IDX was incorrectly used. Fixed now

There are two keypairs that are required to register a pool:

1. reward account (costs and rewards) and
2. owner stake (pledge) keypair.

nighthawk24

iOS, The Future Of macOS, Freedom, Security And Privacy In An Increasingly Hostile Global Environment

This post by a security researcher who prefers to remain anonymous will elucidate concerns about certain problematic decisions Apple has made and caution about future decisions made in the name of “security” while potentially hiding questionable motives. The content of this article represents only the opinion of the researcher. The researcher apologises if any content is seen to be inaccurate, and is open to comments or questions through PGP-encrypted mail.

TL;DR

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#!/bin/bash
 
user="CHANGEME"
pages=$(curl -I https://api.github.com/users/$user/starred | sed -nr 's/^Link:.*page=([0-9]+).*/\1/p')

for page in $(seq 0 $pages); do
    curl "https://api.github.com/users/$user/starred?page=$page&per_page=100" | jq -r '.[].html_url' |
    while read rp; do
      git clone $rp
    done

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#!/bin/bash

# Give the usual warning.
clear;
echo "[INFO] Automated Android root script started.\n\n[WARN] Exploit requires sdk module \"NDK\".\nFor more information, visit the installation guide @ https://goo.gl/E2nmLF\n[INFO] Press Ctrl+C to stop the script if you need to install the NDK module. Waiting 10 seconds...";
sleep 10;
clear;

# Download and extract exploit files.
echo "[INFO] Downloading exploit files from GitHub...";

nighthawk24

android.permission.REAL_GET_TASKS
android.permission.ACCESS_CACHE_FILESYSTEM
android.permission.REMOTE_AUDIO_PLAYBACK
com.amazon.client.metrics.nexus.permission.CANCEL_SCHEDULED_UPLOAD
android.permission.REGISTER_WINDOW_MANAGER_LISTENERS
android.permission.INTENT_FILTER_VERIFICATION_AGENT
android.permission.BIND_INCALL_SERVICE
com.google.android.gms.trustagent.framework.model.DATA_CHANGE_NOTIFICATION
android.permission.WRITE_SETTINGS
com.google.android.vending.verifier.ACCESS_VERIFIER

nighthawk24

#System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

##Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

nighthawk24

{
    "491289025" : "ijinshan-kappmarket://",
    "301521403" : "fb103361823069955://",
    "492178411" : "ils492178411://",
    "346142396" : "fb234434003713://",
    "310633997" : "whatsapp://",
    "370614765" : "com.condenet.newyorker://",
    "325058491" : "rnmddisco://",
    "382952264" : "epichttp://",
    "477048487" : "predictwind://",

nighthawk24

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns                     on recent CPU
L2 cache reference ........................... 7 ns                     14x L1 cache
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns                     20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs 4X memory

nighthawk24

Keybase proof

I hereby claim:

• I am stevegraham on github.
• I am sg (https://keybase.io/sg) on keybase.
• I have a public key whose fingerprint is DB6D 0AB8 BEA8 3D90 E1FC B5A8 9E83 7DE0 28E3 4D82

To claim this, I am signing this object:

nighthawk24

Business Models

Advertising

Models	Examples
Display ads	Yahoo!
Search ads	Google