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HomeHomework Helpcomputer-scienceHashing Algorithms

Hashing Algorithms

A fundamental concept in computer science that involves transforming input data of any size into a fixed-size output, known as a hash value or digest, using a hash function, which is designed to be efficient and minimize collisions

intermediate
3 hours
Computer Science
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Overview

Hashing algorithms play a crucial role in computer science, particularly in data security and integrity. They convert input data into a fixed-size hash code, making it easier to verify data without revealing the original content. Understanding how these algorithms work, including concepts like colli...

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Key Terms

Hash Function
A function that converts input data into a fixed-size string of characters.

Example: SHA-256 is a popular hash function.

Collision
When two different inputs produce the same hash output.

Example: Finding a collision in SHA-1 is a significant security concern.

Data Integrity
The assurance that data is accurate and reliable.

Example: Hashing helps verify data integrity during transmission.

Cryptography
The practice of securing information by transforming it into an unreadable format.

Example: Hashing is a part of cryptographic techniques.

Password Hashing
The process of converting a password into a hash to store securely.

Example: Storing passwords as hashes prevents unauthorized access.

Digital Signature
A cryptographic technique that verifies the authenticity of digital messages.

Example: Digital signatures use hashing to ensure message integrity.

Related Topics

Cryptography
The study of techniques for securing communication and information.
advanced
Data Structures
The organization and storage of data for efficient access and modification.
intermediate
Blockchain Technology
A decentralized digital ledger that records transactions across many computers.
advanced

Key Concepts

Data IntegrityCryptographyHash FunctionsCollision Resistance