PPT-Virtual Grey-Boxes Beyond Obfuscation: A Statistical Security Notion

for Cryptographic Agents Shashank Agrawal Manoj Prabhakaran ChingHua Yu Security Guarantee in Cryptography A cryptographic scheme can provide certain security properties Modern cryptography have involved properties. Grey-Box . Obfuscation for General Circuits. Nir. . Bitansky. . Ran Canetti. Yael . Tauman-Kalai. . Omer . Paneth. Program Obfuscation. Obfuscated program.  .  . Obfuscation. Program.  .  . Private Key to Public Key. Evasive Functions. Boaz . Barak, . Nir. . Bitansky. , Ran Canetti,. Yael Tauman . Kalai, . Omer . Paneth, . Amit Sahai. Program Obfuscation . Obfuscated Program. Approved . Document . Signature . Obfuscation. Boaz . Barak . Sanjam. . Garg. Yael . Tauman . Kalai . Omer Paneth . Amit . Sahai. Program Obfuscation . Public Key.  .  . Obfuscation.  .  .  . Virtual Black-Box (VBB). [. Barak-. Goldreich. -. Nir. . Bitansky. and Omer . Paneth. Program Obfuscation. Compute .  .  .  . Program Obfuscation.  .  . Program Obfuscation. Sign email . with . If . starts with “omer@bu.edu”.  .  .  . Program . Obfuscation. Omer Singer. June 8, 2009. Practical Background. What is program obfuscation?. Obfuscation is deliberately making software code so confusing that even those with access to the code can’t figure out what a program is going to do.. Summer 2013. Presented by: . Rostislav. Pogrebinsky. OVERVIEW. Introduction. VM Architecture. VM Security Benefits. VM Security Issues. VM Security Concerns. Introduction. A VM is a software implementation of a machine that execute programs like a physical machine. for Cryptographic. . Agents. Shashank Agrawal, . Manoj. . Prabhakaran. , . Ching-Hua Yu. Security Guarantee in Cryptography. A cryptographic scheme can provide certain security properties. Modern cryptography have involved properties. Boaz . Barak, . Nir. . Bitansky. , Ran Canetti,. Yael Tauman . Kalai, . Omer . Paneth, . Amit Sahai. Program Obfuscation . Obfuscated Program. Approved . Document . Signature . Obfuscation. Verify and sign. Nir. . Bitansky. and Omer . Paneth. Program Obfuscation. Compute .  .  .  . Program Obfuscation.  .  . Program Obfuscation. Sign email . with . If . starts with “omer@bu.edu”.  .  .  . , Omer . Paneth. On Obfuscation with Random Oracles. [. Lynn-Prabhakaran-Sahai 04. ]:. Can simulation based obfuscation . be constructed with a . Random Oracle. ?. Today: . Impossible . in general!. A Candidate Obfuscator. Mohammad . Mahmoody (University of Virginia). Ameer Mohammed (University of Virginia). Soheil. . Nematihaji. (University of Virginia). a. bhi. . shelat. (University of Virginia). Rafael Pass (Cornell University). Rishab. Goyal. . Venkata. . Koppula. Brent Waters. Key Dependent Message Security . [B. lack. R. ogaway. S. hrimpton. 02]. Plaintexts dependent on . secret . key. Encrypted Storage Systems (e.g., BitLocker). Sanjam. . Garg. , Craig Gentry*, . Shai Halevi*. ,. Mariana . Raykova. , . Amit. . Sahai. , Brent Waters. Faces in Modern Cryptography, Oct-2013. A Celebration in Honor of . . Goldwasser. . and . Prepared by the Food Security Action Group of the Bruce Grey Poverty Task Force. Produced July 2016 . Food . insecurity is a serious public health . issue, it extends beyond hunger . with profound effects on physical and mental health and social well-being. .