'Ascii values' diaporamas de présentation

Database Security Lecture 14 Database Encryption

Database Security Lecture 14 Database Encryption. Elisa Bertino bertino@cs.purdue.edu. The problem. How to protect the confidentiality of sensitive data in the database? Sensitive data examples: credit card numbers, medical data, new product specifications, etc.

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CISC 235: Topic 5

CISC 235: Topic 5. Dictionaries and Hash Tables. Outline. Dictionaries Dictionaries as Partial Functions Unordered Dictionaries Implemented as Hash Tables Collision Resolution Schemes Separate Chaining Linear Probing Quadratic Probing Double Hashing Design of Hash Functions .

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Course Outline

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SCI Serial Communication Interface Gerrit Becker James McClearen Charlie Hagadorn October 21, 2004

SCI Serial Communication Interface Gerrit Becker James McClearen Charlie Hagadorn October 21, 2004. Learning Objectives of the Overview. Knowledge of the general differences between serial and parallel communication

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CSE1301 Computer Programming Lecture 6: Components of a C Program (Part 2)

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CSCE 3110 Data Structures & Algorithm Analysis

CSCE 3110 Data Structures & Algorithm Analysis. Rada Mihalcea http://www.cs.unt.edu/~rada/CSCE3110 Hashing Reading: Chap.5, Weiss. How to Implement a Dictionary?. Sequences ordered unordered Binary Search Trees Skip lists Hashtables. Hashing.

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Building Java Programs

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Prolog III

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Hashing

Hashing. Suppose we want to search for a data item in a huge data record tables How long will it take? It depends on the data structure (unsorted) linked list? (O(N)) (balanced) binary search tree (e.g., AVL tree)? (O(log 2 N)) Unsorted array (O(N))

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HW 3: Problems 2&3

HW 3: Problems 2&3. HW 3 Prob 2:Encipher. encipher( S , n ) takes as input a string S and a non-negative integer n between 0 and 25. This function returns a new string in which the letters in S have been rotated by n characters. For this problem, you should assume that....

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Logic & Logical Operators

Logic & Logical Operators. Logical Operators are used to connect two or more relational expressions into one OR to reverse the logic of an expression. Operator Meaning && AND || OR ! NOT. && (AND).

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