Secure hashing - PowerPoint PPT Presentation


Ascon: The Lightweight Cryptography Standard for IoT

The November 2023 document IEEE 802.11-23/2069r2 discusses the importance of secure data storage and communication in IoT devices due to the increasing number of connected devices and potential security threats. It introduces Ascon as a lightweight cryptography standard selected by NIST for protecti

0 views • 26 slides


Understanding SHA-256 Algorithm and History

SHA-256 is a secure hashing algorithm that produces 256-bit hash values and is more secure than MD5, SHA-0, and SHA-1 due to fewer collisions. Created in 2001 by the NSA, it is widely used in various applications like cryptocurrency, SSL certificates, and blockchain. This summary provides insights i

0 views • 17 slides



Understanding Secure Act 2.0 Key Provisions

In a detailed report by Dee Spivey and Angie Zouhar, key provisions of SECURE Act 2.0 are outlined, including changes in retirement plans like RMD age increase, employee certification of hardship withdrawals, and more. Secure 1.0 and Secure 2.0 differences, effective dates, and necessary actions for

5 views • 12 slides


Introduction to SFTP & PGP Encryption for Secure Data Transfer

Discover how to ensure reliable data transfer, make informed decisions, and gain a strategic advantage through the use of Secure File Transfer Protocol (SFTP) and Pretty Good Privacy (PGP) encryption. The session includes demonstrations on PGP encryption and SFTP access, along with insights on setti

1 views • 22 slides


Ensuring Secure Testing Environments in Oregon Education System

Oregon's Statewide Assessment System (OSAS) emphasizes the critical need for secure testing environments to maintain the validity and accuracy of assessment data. This includes handling secure printed test materials, identifying and preventing improprieties, and reporting any irregularities. From ma

2 views • 20 slides


Secure Keyed Hashing on Programmable Switches

Explore the implementation challenges and opportunities for improved security, privacy, performance, and reliability in data plane applications using (Half)SipHash and CRC32 hashing techniques. Discover the vulnerabilities associated with CRC32 and the need for secure hashing solutions like SipID. L

0 views • 17 slides


Overview of Cryptography Techniques and Algorithms

Exploring the diverse realm of cryptography, this chapter delves into both nonmathematical and mathematical encryption methods. It covers substitution and transposition ciphers, steganography, hybrid systems, hashing, symmetric algorithms like DES and AES, as well as asymmetric algorithms utilizing

7 views • 21 slides


Secure Computation Techniques in RAM Models with Efficient Automation

Explore the automation of efficient RAM-model secure computation techniques, including examples such as secure binary search. Discover how traditional solutions using circuit abstractions can be improved for sub-linear time computation through methods like Oblivious RAM. Learn about techniques such

0 views • 37 slides


Tamper-Evident Pairing (TEP) Protocol for Secure Wireless Pairing Without Passwords

This article discusses the challenges of traditional secure wireless pairing methods that rely on password validation and proposes the Tamper-Evident Pairing (TEP) protocol as a secure in-band solution to protect against Man-in-the-Middle (MITM) attacks. TEP eliminates the need for out-of-band chann

1 views • 40 slides


Understanding Scrypt: Maximally Memory-Hard Functions

Scrypt is a memory-hard function designed for password hashing and key derivation, aiming to thwart brute-force attacks by making evaluation moderately hard. It emphasizes the need for memory intensity over computation, hindering the advantages of special-purpose hardware, parallelism, and amortizat

0 views • 59 slides


Entity Resolution Problem in Customer Data Matching

The challenge of entity resolution, especially in the context of matching customer data between companies, is addressed in this content. The scenario involves accurately identifying which records correspond to the same individuals despite potential variations or errors in the data. Strategies such a

1 views • 56 slides


Comprehensive Overview of Binary Heaps, Heapsort, and Hashing

In this detailed review, you will gain a thorough understanding of binary heaps, including insertion and removal operations, heap utility functions, heapsort, and the efficient Horner's Rule for polynomial evaluation. The content also covers the representation of binary heaps, building initial heaps

0 views • 24 slides


Understanding Blockchain Technology: Challenges and Applications

Grasping the concept of blockchain can be a daunting task due to its multi-faceted nature, requiring knowledge spanning web programming, network, business, economics, and more. However, educational resources and practical exercises, such as those provided in BARTS Blockchain Art Simulation, can aid

0 views • 60 slides


Actively Secure Arithmetic Computation and VOLE Study

Exploring actively secure arithmetic computation and VOLE with constant computational overhead at Tel Aviv University. Understanding how functions are represented in secure computation using arithmetic circuits over boolean circuits. Efficiently evaluating arithmetic circuits over large finite field

0 views • 36 slides


CSE 373 - Hashing Concepts and Exam Preparation

Introduction to hashing in CSE 373, covering basic concepts, hash functions, collision resolution, and runtimes. Exam details for Friday's practice exam include topics on Stacks, Queues, BigO Notation, Heaps, Trees, Design Tradeoffs, and exam format with emphasis on theoretical understanding. Lectur

0 views • 38 slides


Accessing and Utilizing CPCSSN Secure Research Environment (SRE)

Learn how to access the CPCSSN Secure Research Environment (SRE) for secure data analysis. Follow steps such as setting up VPN, accessing SQL databases, and establishing ODBC connections for statistical analysis using tools like SAS, R, SPSS, or Stata. Enhance your research capabilities within a sec

0 views • 12 slides


Understanding Locality Sensitive Hashing (LSH) for Nearest Neighbor Queries

Locality Sensitive Hashing (LSH) is a technique used to efficiently find nearest neighbors in high-dimensional spaces. By grouping similar points into the same hash bucket, LSH enables fast search for nearest neighbors, overcoming the curse of dimensionality. Variants include k-nearest neighbors and

0 views • 41 slides


Enhancing Animal Telemetry Data Systems for Secure Collaboration

Wide spectrum of animal telemetry data collection protocols and platforms require enhanced data stewardship options for secure sharing before public release. The need for a more granular understanding of available data and structured systems integration is crucial. Initial workflow involves providin

0 views • 4 slides


Scaling Services and Key-Value Storage Techniques

This content delves into various aspects of scaling services, including partitioning, hashing, and key-value storage. It discusses vertical and horizontal scalability, the chaotic nature of horizontal scaling, techniques for partitioning data, and case studies like Amazon Dynamo. The importance of p

0 views • 48 slides


STM32WB BLE Secure Connections Overview

This detailed content provides insights into the secure connections in STM32WB BLE devices, covering aspects such as BLE security methods, encryption techniques, pairing processes, key distribution, and security modes and levels. It emphasizes the use of Long Term Keys (LTK), Diffie-Hellman key exch

0 views • 12 slides


Understanding Secure Electronic Transactions (SET)

Secure Electronic Transactions (SET) is an encryption and security specification designed to protect credit card transactions on the Internet. SET provides a secure way to utilize existing credit card payment infrastructure on open networks, such as the Internet, involving participants like clients,

1 views • 6 slides


An Open-Source SPDM Implementation for Secure Device Communication

This article introduces an open-source SPDM (Secure Protocol and Data Model) implementation for secure device communication, developed by Jiewen Yao and Xiaoyu Ruan, Principal Engineers at Intel. SPDM aims to enhance device security through protocols for device authentication, session key establishm

0 views • 29 slides


Exploring Secure Care Services in Scotland

Delve into the world of secure care services in Scotland, focusing on achievements, challenges, and opportunities in providing youth justice. Learn about trends in secure care, reduction in costs, reasons for referrals, and evidence-based programs like DBT in Glasgow. Gain insights from industry lea

0 views • 77 slides


Understanding Secure PRFs and PRPs in Cryptography

Dive into the world of secure Pseudo-Random Functions (PRFs) and Pseudo-Random Permutations (PRPs) in cryptography. Learn about the definitions, security criteria, and examples of secure PRFs and PRPs such as 3DES and AES. Explore the concepts of secure block ciphers and key principles behind these

0 views • 54 slides


Understanding Consistent Hashing and Distributed Hash Table

Explore the concept of consistent hashing and distributed hash tables to efficiently store and retrieve web pages across multiple servers. Learn how hashing functions and algorithms can distribute data evenly, handle server additions smoothly, and minimize object relocations. Discover the benefits o

0 views • 36 slides


Understanding Cryptographic Hash Functions

Cryptographic hash functions play a crucial role in various aspects of security, including integrity protection, checksum generation, password hashing, digital signatures, and more. They are designed to efficiently convert input data of arbitrary length into fixed-length output, aiding in tasks like

0 views • 32 slides


Best Practices for Secure Password Storage - OWASP Foundation Guidelines

Learn about secure password storage techniques recommended by OWASP Foundation, including adding salt, slowing down hashing functions, using HMAC isolation, and imposing difficult verification processes on attackers. Remember to use proper encoding, avoid limiting password types or lengths unreasona

0 views • 10 slides


Overlay Networks and Consistent Hashing in Distributed Systems

Understanding the concept of overlay networks and consistent hashing in distributed systems is crucial for scalability and efficient data storage. Overlay networks like P2P DHT via KBR offer a decentralized approach for managing data while consistent hashing provides a balanced and deterministic way

0 views • 36 slides


Adapting Linear Hashing for Flash Memory Constrained Embedded Devices

This research explores the adaptation of linear hashing for improved data handling on flash memory-constrained embedded devices. Motivated by the increasing data collection by IoT devices, the study focuses on implementing database structures like a linear hash table for efficient data processing. T

0 views • 67 slides


Understanding Hash Functions in Data Structures

Hash functions are crucial in storing data efficiently by converting a sized amount of data into a single integer. They are used to generate hash values, hash codes, or hash sums, which serve as indexes in arrays. The hash function should be quick to compute and distribute hash addresses uniformly t

0 views • 200 slides


Enhancing MemC3: Compact and Concurrent MemCache for Improved Performance

MemC3 introduces a novel approach to compact and concurrent caching through dumber caching and smarter hashing techniques, addressing key issues faced by traditional memory caching systems. By implementing CLOCK-based LRU, approximate LRU, and utilizing Cuckoo Hashing, MemC3 achieves significant imp

0 views • 20 slides


Enhancing Key-Value Storage with MemC3 and Cuckoo Hashing

MemC3 is a specialized key-value store that combines CLOCK and Concurrent Cuckoo Hashing to improve performance and efficiency. Memcached, an established DRAM-based key-value store, is also discussed along with its LRU eviction strategy. The use of internal chaining hashtable and LRU caching in Memc

1 views • 23 slides


Foundations of Cryptography: Secure Multiparty Computation

Explore the foundations of cryptography with insights into secure multiparty computation, including the Secure 2PC from OT Theorem and the Two-Party Impossibility Theorem. Delve into the impossibility of 2-Party Secure MPC, claims, and exercises on extending to statistical security. Learn about redu

0 views • 39 slides


Understanding Database Index Hashing Techniques

Hashing-based indexing in database systems is efficient for equality selections but not suitable for range searches. Both static and dynamic hashing methods exist, with static hashing involving fixed primary pages that are allocated sequentially. The process involves determining the bucket to which

0 views • 41 slides


Understanding Data Structures and Hashing in Java

Data structures play a crucial role in organizing, iterating, adding, deleting, and searching data efficiently. Hash tables, linked lists, trees, and more are explored in this overview, highlighting their strengths and trade-offs. Hashing, collision resolution strategies, and the importance of a wel

0 views • 19 slides


Understanding Hashing: Efficient Data Storage and Retrieval

Hashing is a powerful technique for achieving constant time complexity in finding and inserting data. It allows for quick access without the need for ordered elements. Direct addressing, limited hash operations, and efficient storage methods are discussed in this content to optimize data retrieval s

0 views • 100 slides


Understanding Sketching and Locality Sensitive Hashing in Data Mining

Explore the concepts of Jaccard Similarity and Cosine Similarity in data mining, along with their applications in recommendation systems and finding near-duplicates. Discover how Sketching and Locality Sensitive Hashing techniques help in efficiently identifying similar items and solving the Nearest

0 views • 63 slides


Understanding Hash Tables and Hashing Concepts in Computer Algorithms

This content delves into the concept of Hash Tables, covering topics such as the support for dictionary operations, achieving constant time through direct address tables, case studies in web server maintenance, and an exploration of hashing functions and collision avoidance. It also touches upon key

0 views • 40 slides


Understanding Secure Messaging and Encryption Techniques

Explore the possibilities of sending secure messages through encryption without the need for advanced degrees in Computer Science or Math. Learn about symmetric and asymmetric key encryption methods, the use of PGP for secure messaging, and the concept of shared-key encryption. Discover the intricac

0 views • 16 slides


Understanding Network Security Principles and Techniques

Explore the fundamental concepts of network security, including issues of confidentiality, integrity, and non-repudiability. Learn about the challenges of securing networks and the types of attacks that computer systems face. Dive into basic security techniques like hashing and symmetric key cryptog

0 views • 36 slides