PPT-Cryptography Against Physical Attacks

Dana Dachman Soled University of Maryland danadacheceumdedu Cryptography Public Key Encryption Digital Signatures Secure Multiparty Computation Attacks Even on provably secure schemes such as RSA. 897 Special Topics in Cryptography Instructors Ran Canetti and Ron Rivest Lecture 25 PairingBased Cryptography May 5 2004 Scribe Ben Adida 1 Introduction The 64257eld of PairingBased Cryptography has exploded of . Modern Cryptography. Josh Benaloh. Brian . LaMacchia. Winter 2011. Side-Channel Attacks. Breaking a cryptosystem is a frontal attack, but there may be easier access though a side or back door – especially on embedded cryptographic devices such as . 1. Outline. 2. Overview. Physical Security in Wired Networks . Physical . Security. . in . Wireless Networks. Overview. 3. Networks are made up of devices and communication links. Devices and links can be physically threatened. William Stallings, 6. th. Ed. . Chapter 1. Overview. . “The combination of space, time, and strength that must be considered as the basic elements of this theory of defense makes this a fairly complicated matter. Consequently, it is not easy to find a fixed point of departure.”. Josh Benaloh. Tolga Acar. Fall 2016. October 25, 2016. 2. The wiretap channel. Key (K. 1. ). Key (K. 2. ). Eavesdropper. Plaintext. (P). Noisy insecure. channel. Encrypt. Decrypt. Alice. Bob. Plaintext. Week two!. The Game. 8 groups of 2. 5 rounds. Math 1. Modern history. Math 2. Computer Programming. Analyzing and comparing Cryptosystems. 10 questions per round. Each question is worth 1 point. Math Round 1. Security. Electronic Design Contest - 2017. Outline. Overview . of modern cryptography . Modern hardware design practices. Example of Hardware Attacks. Introduction . to Side Channel . Analysis . Differential . 1. Outline. 2. Overview. Physical Security in Wired Networks . Physical . Security. . in . Wireless Networks. Overview. 3. Networks are made up of devices and communication links. Devices and links can be physically threatened. Symmetric Encryption. Key exchange . Public-Key Cryptography. Key exchange. Certification . Why Cryptography. General Security Goal. - . Confidentiality . (. fortrolig. ). - . End-point Authentication . Maps from Lattices. Craig Gentry (IBM. ). Sergey . Gorbunov. (. MIT). Shai Halevi (IBM). https. ://eprint.iacr.org/2014/645. July 10, 2015. The Mathematics of Modern Cryptography. Multilinear Maps (MMAPs). 1. Administrative Note. Professor Blocki is traveling and will be back on Wednesday. . E-mail: . jblocki@purdue.edu. . Thanks to Professor Spafford for covering the first lecture!. 2. https://www.cs.purdue.edu/homes/jblocki/courses/555_Spring17/index.html. Security and Privacy in Cyber-Physical Systems. Spring 2018. CS 599.. Instructor: Jyo Deshmukh. Acknowledgment: Some of the material in these slides is based on the lecture slides for CIS 540: Principles of Embedded Computation taught by Rajeev Alur at the University of Pennsylvania. http://www.seas.upenn.edu/~cis540/. Josh Benaloh. Tolga Acar. Fall 2016. October 25, 2016. 2. The wiretap channel. Key (K. 1. ). Key (K. 2. ). Eavesdropper. Plaintext. (P). Noisy insecure. channel. Encrypt. Decrypt. Alice. Bob. Plaintext. The . art and science of concealing the messages to introduce secrecy in . information security . is recognized as cryptography. .. The word ‘cryptography’ was coined by combining two Greek words, ‘Krypto’ .