'Discrete logarithm problem' diaporamas de présentation

Elliptic Curve Weak Class Identification for the Security of Cryptosystem

Elliptic Curve Weak Class Identification for the Security of Cryptosystem. Intan Muchtadi, Ahmad Muchlis and Fajar Yuliawan Algebra Research Group, Institut Teknologi Bandung (ITB), Indonesia. Elliptic Curve.

628 views • 47 slides

Cryptosystems Based on Discrete Logarithms

412 views • 32 slides

CSC 774 Advanced Network Security

CSC 774 Advanced Network Security. Topic 2.6 ID Based Cryptography #2. Slides by An Liu. Outline. Applications Elliptic Curve Group over real number and F p Weil Pairing BasicIdent FullIdent Extensions Escrow ElGamal Encryption. Identity-Based Encryption. setup. global parameters

398 views • 25 slides

Fully Homomorphic Encryption

Fully Homomorphic Encryption. Paper by: Craig Gentry Presented By: Daniel Henneberger. What is h omomorphic encryption?. Homomorphic Encryption. Computations on ciphertext which predictably modifies the plaintext Operate on messages while they are encrypted

1.35k views • 25 slides

Overview of Public-Key Cryptography

532 views • 24 slides

Overview of Public-Key Cryptography

328 views • 24 slides

The Cryptanalysis on A New and Efficient Fail-stop Signature Scheme

The Cryptanalysis on A New and Efficient Fail-stop Signature Scheme. ?????? ??? D9521003. Willy Susilo, Rei Safavi-Naini, Marc Gysin and Jennifer Seberry. A New and Efficient Fail-stop Signature Scheme. The COMPUTER JOURNAL, Vol. 43, No. 5, 2000.

564 views • 22 slides

RSA Variants

RSA Variants. Rabin Scheme(I). Scheme Select p , q = 3 mod 4 n=pq public = n , secret= p,q y= e k (x)=x (x+b) mod n x=d k (y)= mod n Choose one of 4 solutions using redundancy ( p.211) Square root

364 views • 22 slides

Elliptic Curve Cryptography:

Elliptic Curve Cryptography:. Keeping the Smart Grid Secure. What is the Smart Grid?. A smart grid delivers electricity from suppliers to consumers using digital technology to monitor (and optionally control) appliances at consumers' homes.

403 views • 21 slides

Elliptic Curve Arithmetic

Elliptic Curve Arithmetic. MAPLD 2003. Siddaveerasharan Devarkal Duncan A. Buell. Elliptic Curve Cryptography. Emerging as new generation of cryptosystems based on public key cryptography No sub-exponential algorithm to solve the discrete logarithm problem

1.02k views • 17 slides

IPsec: IKE, Internet Key Exchange

IPsec: IKE, Internet Key Exchange. IPsec does not use Public Key Infrastructure and exchanging keys before an IPsec connection is established is a problem. IKE solves generation of a symmetric key for a session of IPsec but without PKI man-in-the-middle attack is possible.

918 views • 15 slides

Cryptography Trivia

Cryptography Trivia. Week three!. The Game. 8 groups of 2 6 rounds Ancient cryptosystems Newer cryptosystems Modern cryptosystems Encryption and decryptions Math Security and Performance 10 questions per round Each question is worth 1 point

339 views • 14 slides

Signatures for Network Coding

Signatures for Network Coding. Denis Charles Kamal Jain Kristin Lauter Microsoft Research. Network Coding Set-up. A directed graph of users G A server (source) distributing content Content is divided into packets and represented as vectors in a vector space

251 views • 10 slides