PPT-Attacking Data Independent Memory Hard Functions

Jeremiah Blocki Microsoft ResearchPurdue Joel Alwen IST Austria Motivation Password Storage 2 Username jblocki jblocki 123456 SHA1123456 89d978034a3f6 85e23cfe0021f584e3db87aa72630a9a2345c062. Presentation By: . Saurabh Mishra. A . data storage device. is a device for recording (storing) information (data). . CD, Hard Disk and Flash media are the main . s. torage devices used today.. STORAGE DEVICES. . Chidambaranathan. C.M. SRM . University,Haryana. Memory:-. As the word implies “memory” means the place where we have to store any thing, this is very essential part of human being just like this memory is also very important for computer system because in computer system we have to store some data or information and for storing these items we need some memory or space.. 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?. for . Spam . Fighting. Oded. . Schwartz. CS294, Lecture #. 19 . Fall, 2011. Communication-Avoiding Algorithms. www.cs.berkeley.edu/~odedsc/CS294. Based on:. Cynthia . Dwork. , Andrew . Goldberg, . #7 . Secondary Storage. We know that primary storage consists of both RAM and ROM.. The RAM (Memory) is volatile and is wiped when the power is turned off.. ROM is NOT volatile BUT IS read-only, therefore it can only store preloaded instructions (the boot strap program, for example) and nothing else can be saved on to it.. HTM304. William Sullivan. Victor Cortez. Wendi Jardin. Jonathan Thompson. Storage. Purpose:. Without storage a computer can only function as a digital signal processing device (e.g. calculator, media player).. CHAPTER 4 . Factors affecting Processing speed. width of Registers: . Register is a type of high speed memory unit built onto the CPU used for calculations. A 32 bit processor indicate the width of the register or the word length that can be handled by the processor. Register does arithmetic, logical and moving operations. E.G. Register A hold content of 7 and B holds content of 3: operation: compare Whether A>B. if A>B true then divide A by B. so register C calculates A/B=7/3=2.33. the result is stored in register D. the moved to RAM. If not saved the hard disk the data is lost RAM as RAM is volatile.. Fetches the next instruction;. Decodes the instruction. Executes the instruction. Referred to as the FETCH-DECODE-EXECUTE . CYCLE. Is the central part of a computer. Sometimes called – . C. entral . for. . OR1200 CPU Core. Arijit . Banerjee ASIC/SOC Class 2014. Dated 05/09/2014. Motivation. 2. ASICs/SoCs have billions of transistors. Impossible to design everything manually. summer . workshop-July, 2014 . in Guildford County. Computers. Bits and Bytes. Bits. and Bytes. Bits . -- Computers operate using the “base-2” number system, also known as the . Jingfei. Kong. , Martin . Dimitrov. , Yi Yang, . Janaka. . Liyanage. , Lin Cao, Jacob Staples, Mike . Mantor. , . Huiyang. Zhou. Motivation. With high memory bandwidth and teraflops computing capability, Graphics Processor Units (GPUs) become quite attractive for accelerating general purpose applications. Hardware vs. Software. Hardware includes. CPU = central processing unit. Memory = RAM (random access memory). Input = Keyboard, mouse, microphone. Output = Screen, speaker, printer. Storage = Hard drive, DVD, Solid State. Computer Basics. The brains of the computer is the . microprocessor.. The . microprocessor is often referred to as the CPU (Central Processing Unit. ).. The . processor . is one of the most important parts of the computer.. September 1990Printed on Recycled PaperUsers Guide 1991 Texas Instruments IncorporatedIMPORTANT NOTICETexas Instruments TI reserves the right to make changes to or to discontinue any semiconduc-tor pr