PPT-Protecting Cryptographic Keys from Memory Disclosure Attack

Presented by John Shu Shouhuai Xu and Keith H arrison UTSA Dept Computer Science Outline Introduction Threat Assessment Understanding the Attack Countering Memory Disclosure Attacks. Presenter: . Luren. Wang. Overview. Motivation. Threat Model. Background . Implementation. Evaluation. Conclusion. Future Work. Motivation. Smartphones and tablets are easily stolen.. According to Consumer Reports, smartphone theft rose to 3.1 million in the US in 2013 [1]. . Conference:SoftCOM(2010). Author: Deepak Tagra, Musfiq, Rahman and Srinivas Sampalli. Present: . 102062595. 侯宗佑. Outline. Introduction. Security Issues. Gossamer Protocol. De-synchronization Attack. Student: Fatemah Alharbi. Professor: Nael Abu-Ghazaleh. EE260 Seminar in Electrical Engineering. Spring . 2015. 4/23/2015. Information about the paper. Researchers:. Erman Pattuk. Murat Kantarcioglu. CSCI 5857: Encoding and Encryption. Outline. Confusion and diffusion. Attacks and weaknesses. Linear . c. ryptanalysis attacks. Weak keys. Exhaustive search attacks. Use of multiple keys. Meet in the middle attacks. Presented by:. Josh Baker. October 9. th. , 2012. 1. CS5204 . – Operating Systems. CS5204 . – Operating Systems. Overview. What is cryptographic security?. Uses. Main Points. What is a . “. Key/Certificate”?. Intra. -domain Isolation. Yutao Liu. , . Tianyu. . Zhou,. . Kexin. . Chen,. . Haibo Chen, . Yubin. . Xia. Institute of Parallel and Distributed System (IPADS). Shanghai . Jiao Tong . University. Weichao. Wang. 2. Overview of the DES. A block cipher:. encrypts blocks of 64 bits using a 64 bit key. outputs 64 bits of ciphertext. A product cipher. basic unit is the bit. performs both substitution and transposition (permutation) on the bits. Richard Johnson. richardj@microsoft.com. switech@microsoft.com. The memory manager is responsible for tracking a program’s dynamic data storage. . Unlike stacks which work based upon a simple FIFO/LIFO concepts, heaps require management routines to track the location of free and allocated memory chunks . 2012 IEEE High Performance Extreme Computing Conference. 10 - 12 September 2012. Scalable Cryptographic Authentication for High Performance Computing. This work is sponsored by the Department of the Air Force under Air Force contract FA8721-05-C-0002. Opinions, interpretations, conclusions and recommendations are those of the author and are not necessarily endorsed by the United States Government.. Stream Cyphers. . Shemal Shroff. Shoaib. . Bhuria. Yash. . Naik. Peter Hall. outline. Introduction to Security. Relevance to FPGA. Design and Manufacture flow for an FPGA. Things to secure and why?. Ways to Protect Our Fire:. Don’t be fooled by Satan’s lies. Recovering from Burnout. Review – Protecting Our Zeal. Recovering from Burnout:. Spend time alone with God (Heat). Speak honestly to God (Heat). Consider first the case where there is no final key-mixing step. Possible to get the key immediately!. What about a full 1-round SPN? . Attack 1: for each possible . 1. st. -round. key, get corresponding 2. networks. Feistel. networks. Build (invertible) permutation from . non-invertible. components. One round:. Keyed round function f: {0,1}. n. x {0,1}. l. /2. . {0,1}. l. /2. F. k1. (L0, R0) .  (L1, R1). CS 469: Security Engineering. These slides are modified with permission from Bill Young (. Univ. of Texas). Thought . Experiment. Consider the following scenario:. Your friend Ivan lives in a repressive country where the .