Ivan Damgard — Ivan Damgård Ivan Damgård, cryptologue danois et professeur à l Université de Aarhus (Danemark). Fondateur de la société Cryptomathic, il est plus connu pour la construction qui porte son nom, la construction de Merkle Damgård, une structure… … Wikipédia en Français
Ivan Damgård — Ivan Damgård, cryptologue danois et professeur à l Université de Aarhus (Danemark). Fondateur de la société Cryptomathic, il est plus connu pour la construction qui porte son nom, la construction de Merkle Damgård, une structure utilisée par… … Wikipédia en Français
Damgård–Jurik-Kryptosystem — Das Damgård–Jurik Verschlüsselungssystem ist ein semantisch sicherer, asymmetrischer Verschlüsselungsalgorithmus. Es wurde 2001 an der Konferenz PKC von den beiden Kryptographen Ivan Damgård und Mads Jurik vorgestellt[1]. Das Verfahren ist… … Deutsch Wikipedia
Damgård–Jurik cryptosystem — The Damgård–Jurik cryptosystem[1] is a generalization of the Paillier cryptosystem. It uses computations modulo ns + 1 where n is an RSA modulus and s a (positive) natural number. Paillier s scheme is the special case with s = 1. The order φ(ns + … Wikipedia
Merkle-Damgård construction — In cryptography, the Merkle Damgård construction or Merkle Damgård hash function is a method to build cryptographic hash functions. All popular hash functions follow this generic construction.A cryptographic hash function must be able to process… … Wikipedia
Merkle–Damgård construction — In cryptography, the Merkle–Damgård construction or Merkle–Damgård hash function is a method to build collision resistant cryptographic hash functions from collision resistant one way compression functions.[1]:145 This construction was used in… … Wikipedia
One-way compression function — In cryptography, a one way compression function is a function that transforms two fixed length inputs to an output of the same size as one of the inputs. The transformation is one way , meaning that it is difficult given a particular output to… … Wikipedia
Claw-free permutation — In mathematical and computer science field of cryptography, a group of three numbers (x,y,z) is said to be a claw of two permutations f0 and f1 if f0(x) = f1(y) = z. A pair of permutations f0 and f1 are said to be claw free if there is no… … Wikipedia
Threshold cryptosystem — In cryptography, a cryptosystem is called a threshold cryptosystem , if in order to decrypt an encrypted message a number of parties exceeding a threshold is required to cooperate in the decryption protocol. The message is encrypted using a… … Wikipedia
Damgaard-Jurik cryptosystem — The Damgård Jurik cryptosystem [Ivan Damgård, Mads Jurik: [http://www.brics.dk/RS/00/45/ A Generalisation, a Simplification and Some Applications of Paillier s Probabilistic Public Key System] . Public Key Cryptography 2001: 119 136] is a… … Wikipedia
