PPT-Hash Functions/Review

Miles Jones MTThF 830950am CSE 4140 September 1 2016 Element Distinctness WHAT Given list of positive integers a 1 a 2 a n decide whether all the numbers are distinct or whether there is a . Exploiting the Entropy. in a Data Stream. Michael Mitzenmacher. Salil Vadhan. How Collaborations Arise…. At a talk on Bloom filters – a hash-based data structure.. Salil: Your analysis assumes perfectly random hash functions. What do you use in your experiments?. G.Cormode@warwick.ac.uk. Nick Duffield, Texas A&M University. Nick.Duffield@gmail.com. Sampling for Big Data. x. 9. x. 8. x. 7. x. 6. x. 5. x. 4. x. 3. x. 2. x. 1. x. 10. x’. 9. x’. 8. x’. 10. Mark Russinovich Technical Fellow. Microsoft Azure. Nathan Ide Principal Dev Lead. Microsoft Windows. Pass-the-Hash == Single-Sign On. Pass-the-hash is the use of a saved credential or authenticator . Uri . Zwick. January 2014. Hashing. 2. Dictionaries. D .  . Dictionary() . – Create an empty dictionary. Insert(. D. ,. x. ) . – Insert item . x. into . D. Find(. D. ,. k. ) . – Find an item with key . Message Authentication Codes. Sebastiaan. de Hoogh, . TU/e. Cryptography 1. September 12, 2013. Announcements. Until this morning 50 students handed in 43 pieces of . homeworks. . (only 7 pairs). BUT: . By. Lucia Cárdenas . INGREDIENTS. 2 pork chorizo links. 1 ripe (fairly but not all black) plantain, peeled and diced. 1 can . Delmonte. Summer Crisp or 1 cup fresh corn. 1/2 cup(s) black beans, drained and rinsed. Linear Probing. Uri Zwick. Tel Aviv University. Hashing with open addressing. “Uniform probing”. Insert key . in the first free position among.  . (Sometimes) assumed to be a . permutation. To search, follow the same order. Dominique Unruh. University of Tartu. Surprises with hash functions. Consider a hash function and a horse race. “Spicy Spirit” wins…. Commitments and hashes. Player. Bookie.  . Player. Bookie. CIS 606. Spring 2010. Hash tables. Many applications require a dynamic set that supports only the . dictionary . operations . INSERT. , SEARCH, and DELETE. Example: a symbol table in a compiler.. A hash table is effective for implementing a dictionary.. By – . Debanjan. . Sadhya. (iwc2011013). Mayank. . Swarnkar. (iwc2011026). Contents. Introduction. Definition. Properties of SHA. SHA Functions. SHA Constants. Preprocessing in SHA. Hashing in SHA. , . are.  . canonical.  solutions . y. (. x. ) of . Bessel's . differential equation. :. α (the . order.  of the Bessel function). Bessel functions are also known as . cylinder functions.  or . n. . . [from the . techspeak. ] (var. ‘hash clash’) . When used of people, signifies a confusion in associative memory or imagination, especially a persistent one.” . . -. The Hacker's Dictionary . Uri Zwick. Tel Aviv University. Started: . April . 2015. Last update: . January 12, 2017. Hashing with open addressing. “Uniform probing”. Insert key . in the first free position among.  . (Sometimes) assumed to be a . Pass-The-Hash: Gaining Root Access to Your Network June 24, 2014 Tim Slaybaugh Cyber Incident Analyst Northrop Grumman Information Systems What is Pass-The-Hash? “Attackers using PtH completely compromise just about every network they hit. Pretty much every APT attack team uses them.”