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Paillier Threshold Encryption WebService by Brett Wilson
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Decryption: r = cd mod n, m = L(cr-n mod n2), L(x) = (x-1)/n. Some properties: (1)f(r,m) = rn (1 mn) mod n2 is homomorphic for r,m, namely, ...
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Paillier Threshold Cryptography Web Service by Brett Wilson Outline of the Talk Introduction/Motivation Related Work Design of Paillier Threshold Cryptography Web ...
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Dario Catalano, Rosario Gennaro, and Nick Howgrave-Graham, Euro Crypt 01 ... probabilistic polynomial time algo A. a negligible function negl() c [0...B] ...
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Some RSA-based Encryption Schemes with Tight Security Reduction Kaoru Kurosawa, Ibaraki University Tsuyoshi Takagi, TU Darmstadt One-wayness and Semantic-security One ...
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An Overview on Cryptographic Voting Systems Prof. Andreas Steffen University of Applied Sciences Rapperswil andreas.steffen@hsr.ch
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More Techniques for Elections with Homomorphic Tallying Jens Groth University College London Security in the random oracle model The Fiat-Shamir heuristic yields ...
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How to compile searching software so that it is impossible to reverse-engineer. (Private Keyword Search on Streaming Data) Rafail Ostrovsky William ...
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RE: Reliable Email Michael Kaminsky (Intel Research Pittsburgh) Scott Garriss (CMU) Michael Freedman (NYU/Stanford) Brad Karp (University College London)
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How to compile searching software so that it is impossible to reverse-engineer. (Private Keyword Search on Streaming Data) Rafail Ostrovsky William ...
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Secure Efficient Multiparty Computing of Multivariate Polynomials and Applications Dana Dachman-Soled, Tal Malkin, Mariana Raykova, Moti Yung We introduce for ...
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Voyage Astronomie Vars-Sainte-Marie Classes de Ce2 et de Ce1-Ce2
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... case, polynomial size domains, Decisional q-Diffie-Hellman Inversion Assumption ... Round table protocol with constant rounds ...
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Fully Homomorphic Encryption over the Integers Many s borrowed from Craig Marten van Dijk1, Craig Gentry2, Shai Halevi2, Vinod Vaikuntanathan2
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Searchable Encryption Revisited: Consistency Properties, Relation to Anonymous IBE, and Extensions Michel Abdalla (Ecole normale sup rieure, Paris)
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How to compile searching software so that it is impossible to reverse-engineer. ... Can compile any code into a 'obfuscated code with small storage' ...
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Searchable Encryption Revisited: Consistency Properties, Relation to Anonymous ... Is there a weaker notion of consistency met by BDOP-PEKS which is still adequate ...
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Title: Slide 1 Created Date: 6/4/2004 5:54:40 PM Document presentation format: On-screen Show Company: Microsoft Corporation Other titles: Arial Times New Roman ...
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A (Brief) Comparison of Cryptographic Schemes for Electronic Voting. Tartu, Estonia ... shadow election' May 1998 during Dutch national elections. technical ...
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Homomorphic, i.e., E(x)E(y) = E(x y) Simplifying Assumptions for this Talk ... Scheme based on arbitrary homomorphic encryption. Conclusions ...
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Title: PowerPoint Presentation Author: Helle Sandmann Last modified by: Peter Landrock Created Date: 8/8/2002 12:36:24 PM Document presentation format
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Privacy, Authenticity and Integrity in Outsourced Databases Gene Tsudik Computer Science Department School of Information & Computer Science University of California ...
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Buyer-Seller Watermarking (BSW) Protocols Geong Sen Poh 31 Oct 2006 Outline Introduction Motivation Development of BSW Goals, Methodology and Assumptions Protocols ...
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Compose. Verify-In-Group. Verify-Not-In-Group ... Compose (by querying the oracle) Verification (of oracle outputs) Verify-In-Group ... Private-Compose ...
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... that a given system is safe to operate (security-wise) in its given environment. ... that receive, process, store, display, or transmit DoD information regardless ...
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Based on: ... point P' that lies on a different curve from the one is used by the tamper-proof ... do not satisfy the proper conditions, not to let them leave ...
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The basic tool: Homomorphic Encryption. Semantically secure public key encryption ... Server uses homomorphic properties to compute. y Enc( r P(y) y) (r is random) ...
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To give Web site visitors a way to determine if downloaded files are ... Privacy Defended: Protecting Yourself Online by Gary Bahadur, William Chan, Chris Weber ...
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Tree Homomorphic Encryption with Onion decryption. ElGamal-specific case. ... Tree Aggregation Decryption by 'Onion Peeling' The low level node ...
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... and papers of: Schoenmakers, Benaloh, Fiat, Adida, Reynolds, Ryan and Chaum ... Reynolds' Scheme. Voter enters the booth and receives a blank ballot. ...
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Yao'86: O(g) symmetric-key operations, passive adv. ... Committed String-OT. Comparison with ... perform an OT on the committed string value (e.g. a key) ...
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I am selling a ticket to Anguilla. $1000. One hundred million dollars! ... I have no idea what the bids were. What if bidders lie about the result? ...
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'Possible Terrorists' list is classified and should not be revealed to airports. Tantalizing question: can the airports help (and do all the search work) if they ...
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Email remailers. Timestamping issues. Identity-based encryption. Smart cards. Power analysis. Electro-Magnetic Side Channels. Why change password every month? ...
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It is possible to find schemes that do not use pairings, but ... Galindo, Martin, Morillo, Villar 2003: Fujisaki-Okamoto IND-CCA hybrid encryption revisited. ...
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... IKEv2, SSL/TLS, What about password-based key exchange? What about modeling symmetric encryption and message authentication as ideal functionalities?
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List of possible topics for presentations. You must 'claim' a topic to ... The resurrecting duckling. Proactive security. NTRU encryption. Firewalls. Sandboxes ...
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Week 2 Cryptography * * * * Stallings Fig 9-1. * * * * * The idea of public key schemes, and the first practical scheme, which was for key distribution only, was ...
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Sub-linear Zero-Knowledge Argument for Correctness of a Shuffle. Jens Groth ... Shuffle N = 100,000 ciphertexts (88Mbits) m = 10 ...
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So we are going to demand that the protocols works as it should, ... can assume desired computation specified as algebraic circuit over finite field K= GF(p) ...
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Building block 1: Homomorphic cryptosystem (Step 2) Observation from the environment ... Homomorphic public-key cryptosystem. Addition of cipher epk(m1 m2; r1 ...
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Encryption: message m {0,1,2,..,n-1}, random choose r(Zn) ... Theoretical general construction: '91, Dolev-Dwork-Naor (non-malleability) ...
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