PPT-Anonymity-preserving Public-Key Encryption

Author : pamella-moone | Published Date : 2016-04-08

Markulf Kohlweiss Ueli Maurer Cristina Onete Björn Tackmann and Daniele Venturi PETS 2013 Context E ncryption and Anonymity Publickey encryption Short but

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Anonymity-preserving Public-Key Encryption: Transcript

Markulf Kohlweiss Ueli Maurer Cristina Onete Björn Tackmann and Daniele Venturi PETS 2013 Context E ncryption and Anonymity Publickey encryption Short but eventful history late 70s 80s. Network Fundamentals. Lecture 22: Anonymous Communications. (Wave Hi to the NSA). 2. You Are Not Anonymous. 3. Your IP address can be linked directly to you. ISPs store communications records. Usually for several years (Data Retention Laws). unbeobachtbare. Kommunikation. Anonymous and unobservable . Communications. (Version 2012/08/22). Stefan Köpsell. (Slides [mainly] created by Andreas Pfitzmann). . Technische. . Universität. Dresden, Faculty of Computer Science, . (. Version 2013/04/03). Stefan Köpsell. (Slides [mainly] created by Andreas Pfitzmann). . Technische. . Universität. Dresden, Faculty of Computer Science, . D-01187 . Dresden. Nöthnitzer. Str. 46, Room . 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. Markulf Kohlweiss. Ueli. Maurer, . Cristina . Onete, . Björn Tackmann, . and . Daniele Venturi. PETS 2013. Context: . E. ncryption and Anonymity. Public-key encryption. Short but eventful history, late 70s, 80s.. / CS . 6740. Network . Security. Lecture 11: . Anonymous Communications. (Wave Hi to the NSA). 2. You Are Not Anonymous. 3. Your IP address can be linked directly to you. ISPs store communications records. Networks and Distributed Systems. Anonymous . Communications. (Wave Hi to the NSA). Revised 8/21/15. 2. You Are Not Anonymous. 3. Your IP address can be linked directly to you. ISPs store communications records. . and. . Fault-Tolerant. Data. . Storage. Haibin Zhang (UConn). haibin. .zhang. @. uconn.edu. http://. scl.uconn.edu. /people/. haibin. /. info.php. Research. . Interests:. . Security. . and. . Lecture 22: Anonymous Communications. (Wave Hi to the NSA). 2. You Are Not Anonymous. 3. Your IP address can be linked directly to you. ISPs store communications records. Usually for several years (Data Retention Laws). 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. pk. , . sk. pk. c. . . . Enc. pk. (m). m. = . Dec. sk. (c). c. pk. pk. Public-key encryption. A public-key encryption scheme is composed of three PPT algorithms:. Gen: . key-generation algorithm. Crypto Concepts Symmetric encryption, Public key encryption, and TLS 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 Slides by Prof. Jonathan Katz. . Lightly edited by me.. Review: private-key setting. Two (or more) parties who wish to securely communicate . share. a uniform, secret key k . in advance. Same key k used for sending or receiving. P. ublic-key encryption ( Asymmetric Encryption). Asymmetric encryption is a form of cryptosystem in which . encryption and . decryption are performed using the different keys—one a public . key and .

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