Hash functions

Hash filter

A hash filter creates a hash sum from data, typically e-mail, and compares the sum against other previously defined sums. Depending on the purpose of the filter, the data can then be included or excluded in a function based on whether it matches an existing sum. For example, when a message is received by an e-mail server with a hash filter, the contents of the e-mail is converted into a hash sum. If this sum corresponds to the hash sum of another e-mail which has been categorized as spam, the received e-mail is prevented from being delivered. Spammers attempt to evade this by adding random strings to the text content and random pixel changes ("confetti") to image content (see image spam). (Wikipedia).

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From playlist Introduction to Filter Design

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From playlist Software Development Lectures

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From playlist Twitter

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From playlist Cryptography

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From playlist Understanding Kalman Filters

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From playlist Java Algorithms

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From playlist Kaggle Live Coding | Kaggle

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From playlist !!Con 2016

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From playlist Spanning Tree Favorites

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From playlist PyChain 2022

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From playlist MIT MAS.S62 Cryptocurrency Engineering and Design, Spring 2018

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From playlist jQuery for Designers

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From playlist SPECIAL TOPICS 1 - THE KALMAN FILTER

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From playlist Leetcode

Related pages

Bloom filter | Hash buster | Locality-sensitive hashing