'Compression function' presentation slideshows

Message Authentication

Message Authentication. MAC and Hash. Message Authentication. Verify that messages come from the alleged source, unaltered Authentication requirements Authentication functions. Authentication Requirements. Masquerade Content modification

907 views • 73 slides

Message Authentication

Message Authentication. MAC and Hash. Message Authentication. Verify that messages come from the alleged source, unaltered Authentication requirements Authentication functions. Authentication Requirements. Masquerade Content modification

747 views • 73 slides

Attacks on hash functions: Cat 5 storm or a drizzle?

Attacks on hash functions: Cat 5 storm or a drizzle?. Ilya Mironov Microsoft Research, Silicon Valley Campus September 15, 2005. Outline. Hash functions : Definitions Constructions Attacks What to do. Outline. Hash functions : Definitions Constructions Attacks What to do.

697 views • 58 slides

Mehrdad Nourani

Mehrdad Nourani. Data & Network Security. Hash Algorithms. Session 14. Well-known Hash Functions. Hash Algorithms. see similarities in the evolution of hash functions & block ciphers increasing power of brute-force attacks leading to evolution in algorithms

811 views • 51 slides

Lecture 04 Message Authentication and Hash Functions

Lecture 04 Message Authentication and Hash Functions. Asst.Prof.Supakorn Kungpisdan, Ph.D. supakorn@mut.ac.th. Outline. Authentication Requirements Authentication Functions Hash and MAC Algorithms. What is Authentication?.

732 views • 51 slides

Hash Functions and Message Authentication Codes

Hash Functions and Message Authentication Codes. Cryptography 1 September 12, 2013. Sebastiaan de Hoogh, TU/e. Announcements. Until this morning 50 students handed in 43 pieces of homeworks . (only 7 pairs) BUT: Homeworks should be handed in by pairs !!!

647 views • 51 slides

Cryptographic Hash Functions

Cryptographic Hash Functions. Rocky K. C. Chang, February 2013. This set of slides addresses. Outline. Cryptographic hash functions Unkeyed and keyed hash functions Security of cryptographic hash functions Iterated hash functions Two weaknesses Message authentication codes

695 views • 40 slides

Cryptographic Hash Functions Part II

404 views • 40 slides

GROESTL HASH FUNCTION

GROESTL HASH FUNCTION. Presented by : Kouajiep Ngongang Landry/ Student ID: 6912095 /email: kanel_landry@yahoo.fr Madhu / Student ID: 9793569/ email:m_gongat@encs.concordia.ca Esaq Ahmed/ Student ID: 9702849 /email: daybright2003@gmail.com

489 views • 26 slides

Cryptography or Smalltalkers 2 Public Key Cryptography

Cryptography or Smalltalkers 2 Public Key Cryptography. Martin Kobetic Cincom Smalltalk Development ESUG 2006. Contents. Public Key Algorithms Encryption (RSA) Key Establishment (RSA, DH) Signing Hashes (SHA, MD5) MACs (HMAC, CBC-MAC) Digital Signatures (RSA, DSA).

530 views • 25 slides

CS 61B Data Structures and Programming Methodology

CS 61B Data Structures and Programming Methodology. July 17, 2008 David Sun. Deletion. Delete a node given a key, if a node exists. Find a node with key k using the same algorithm as find() . Return null if k is not in the tree;

337 views • 25 slides

Part B Sliding-band Dynamic Range Compression ( N. Tiwari & P. C. Pandey, NCC 2014 )

P. C. Pandey, "Signal processing for improving speech perception by persons with sensorineural hearing loss: Challenges and some solutions", IEEE Workshop on Intelligent Computing, IIIT Allahabad, 13-15 Oct. 2014. Part B Sliding-band Dynamic Range Compression

388 views • 25 slides

Yevgeniy Dodis Leonid Reyzin Ronald L. Rivest Emily Shen

344 views • 24 slides

Cryptography and Network Security Chapter 12

386 views • 23 slides

Hashing Algorithms: SHA-512 and SHA-3

2.62k views • 23 slides

CS 61B Data Structures and Programming Methodology

308 views • 23 slides

Cryptographic Hash Functions

276 views • 23 slides

JH Review

JH Review. Group 3. Outline. Why we choose JH Description of JH Comments of NIST and MIT students Preimage Attack by Mendel and Thomsen Analysis of Author in Round1 and Round2 Compare with CubeHash Reference. Why we choose JH. ECHO... Preimage Attack Simplicity. Description of JH.

372 views • 22 slides

Designing Hash functions

Designing Hash functions. and message authentication codes. Reviewing. We have seen how to authenticate messages: Using symmetric encryption, in an heuristic fashion Using public-key encryption in interactive protocols

277 views • 18 slides

Requirements and suggestions for MICs

262 views • 17 slides