PPT-Chainspotting ! Building Exploit Chains with Logic

Bugs Chainspotting W ritten and D irected by G eorgi G eshev and R obert M iller CanSecWest 24 March 2018 Agenda Agenda Mobile Pwn2Own 2017 Samsung Galaxy S8 Android Nougat 70. Please do not alter or modify contents All rights reserved 1FQMFXIFFMMZVDDFGVMJNQMFNFUJHUIJLJMM hy does my child always have an attitude Shes often disruptive disrespectful or picking on other children Shes always the one with a chip on her shoulder Please do not alter or modify contents All rights reserved QVSIBTFE 1BJOMTT1BSOUJOHSUI1STDIMBST BDLTPU PMEF XXXMPWF E MPHDDPN 57513 2001 Jim Fay End the Bedtime Blues Parents Dont Need to Force Kids to Go to Sleep edtime is a time of frustration Closure properties in modal logic. Closure properties in modal logic. Specific modal logics. Specific . modal logics are . specified . by giving . formula schemes. , which are then called axioms, and . EAUC Scotland event on community engagement. 16. th. . April 2015. Liz Cooper, SRS Research and Policy Manager. Everything we buy . as institutions has an impact . on communities around the world. Livelihoods, Pay, Farmers, Extractives/mining, Manufacturing. ?. Anatoliy. . Konversky. ,. academician of National Academy . of Science of Ukraine,. D. ean of Philosophy Faculty. Taras. Shevchenko National University of Kyiv. . Dear colleagues. , participants of the conference! . Grigore. . Rosu. University of Illinois at . Urbana-Champaign (UIUC). Joint work with. Chucky Ellison . (UIUC). Wolfram Schulte . (Microsoft Research). How It Started. NASA project runtime . verification effort. You will need 2 sheets of paper and your . Chains. book.. One sheet is for notes, and the other for your assignment.. Hyperbole. Exaggerating . for emphasis or effect. .. Examples.   . Yeah, I already beat that game 80,000 years . We already know that the language of the machine is . binary. – that is, sequences of 1’s and 0’s. But why is this? . At the hardware level, computers are streams of signals. These signals only have two states of interest, high voltage and low voltage. . We already know that the language of the machine is . binary. – that is, sequences of 1’s and 0’s. But why is this? . At the hardware level, computers are streams of signals. These signals only have two states of interest, high voltage and low voltage. . Learning Objectives. Know the three basic logic gate operators . Work out the output of given inputs using a truth table. All the instructions and data inside a computer are stored using binary. . Computer memory uses many small transistors and capacitors to store data. . Value Chains. 1. Mainstream . food supply chains have these characteristics:. 2. Each company in the chain seeks to buy as cheaply and sell as expensively as . possible.. This leads to: . business relationships that are competitive and adversarial (win-lose). Logic Gates. NOT (Inverter) Gate. AND Gate. OR Gate. NAND Gate. NOR Gate. XOR Gate. Digital Signals. Digital signals 0 (false) or 1 (true). Digital signal 1 is represented by a small voltage.. Digital signal 0 is represented by no voltage.. Learn what a logic gate is and what they are for.. Be able to identify common logic gates.. Understand how truth tables work.. What is a logic gate?. Logic gates are part of the circuits inside your computer. They can take several INPUTS. . backbone.  . atoms . (see aminoAcids1).  but a unique set of . side chain . atoms. It's the side chains that make the 20 amino acids different from each other. . 1. Use the three identical backbone pieces and three unique side chain pieces below to construct three amino acids in the space to the right..