PPT-Dual System Encryption:

Author : myesha-ticknor | Published Date : 2016-06-06

Concept History and Recent works Jongkil Kim Introduction Strategy of Security Proof Partitioning Technique Dual System Encryption Semifunctionality Nominally Semifunctionality

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Dual System Encryption:: Transcript

Concept History and Recent works Jongkil Kim Introduction Strategy of Security Proof Partitioning Technique Dual System Encryption Semifunctionality Nominally Semifunctionality Encodings. CBC paddings attacks. Online Cryptography Course Dan Boneh. Recap. Authenticated encryption. : CPA security + . ciphertext. integrity. C. onfidentiality in presence of . prOtection. (AERO). mcgrew@cisco.com. AERO. Authenticated Encryption algorithm. Stateful. and self-synchronizing. Easy to use. Robust against nonce misuse and decryption misuse. Saves bandwidth. No nonce, no sequence number. CJ341 – Cyberlaw & Cybercrime. Lecture . #26. M. E. Kabay, PhD, CISSP-ISSMP. mailto:mekabay@gmail.com. . V: 802.479.7937. Assoc Prof Information Assurance. School of Business & Management. usna. . si110. Symmetric Encryption Limitations. Symmetric encryption algorithms use the . same key for encryption and decryption. Both parties must agree to a secret key. Fundamental limitation. How do you exchange a secret key?. Chris Edwards. IT Services. “All . confidential data . must . be encrypted where stored on a mobile . device” . Mobile Device Encryption Policy. What do we mean by “encrypted” ??. Password Protected. Rainbows (a.k.a. Spectrums). Public Private Key Encryption. HTTPS. Encryption. String Encryption. You have an account on . facebook. , LinkedIn, YouTube etc. . Your login: . costanza@seinfeld.com. Your password is : . Rainbows (a.k.a. Spectrums). Public Private Key Encryption. HTTPS. Encryption. String Encryption. You have an account on . facebook. , LinkedIn, YouTube etc. . Your login: . costanza@seinfeld.com. Your password is : . Schemes and Parameters. Joppe W. Bos. Microsoft Research. Contains joint work with Kristin . Lauter, . Jake Loftus and Michael Naehrig. Computing on Encrypted Data. Motivation. Outsource data and computation. David Kauchak. CS52 – . Spring 2016. Admin. Assignment 6. Survey: respondents. 24 total respondents. Survey: “How is the class going?”. Survey: “How is the difficulty of the class?”. Survey: time spent per week. Cryptography. Is:. A tremendous tool. The basis for many security mechanisms. Is not:. The solution to all security problems. Reliable unless implemented and used properly. Something you should try to invent yourself. Citation. I would like to thank Claude Crepeau for allowing me to use his slide from his crypto course to mount my course. Some of these slides are taken directly from his course. . Comp 547 at . Mcgill. Dana . Dachman. -Soled. University of Maryland. Deniable Public Key Encryption. [Canetti, . Dwork. , . Naor. , . Ostrovsky. , 97]. Sender. Receiver. . . s. . For any . in the message space, can produce a . Definitions. Online Cryptography Course Dan Boneh. Goals. An . authenticated encryption . system (E,D) is a cipher where . As usual: E: K × M . × . N . ⟶ C. Public key encryption from Diffie -Hellman The ElGamal Public-key System Online Cryptography Course Dan Boneh Recap: public key encryption: (Gen, E, D) E D

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