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A cryptographic hash function is an algorithm that takes an arbitrary amount of data input—a credential—and produces a fixed-size output of enciphered text called a hash value, or just “hash.” That enciphered text can then be stored instead of the password itself, and later used to verify the user.

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How cryptography relates to Cybersecurity

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How cryptography relates to Cybersecurity

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Given the ubiquity of cryptography and encryption in the modern world, there’s a growing need for professionals who understand how to design, interpret, and fortify cybersecurity systems. The U.S. Bureau of Labor Statistics (BLS) predicts that jobs in cybersecurity will grow by 32% between 2018 and 2028, much faster than the anticipated national average rate. Not only will there be plenty of stimulating opportunities, but they’ll also be potentially lucrative: According to the BLS, information security analysts earned a median annual salary of $98,350 in 2018.

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Security Part2 - Basics of cryptography - 1 Introduction, encryption-decryption principle

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1. Encryption
2. Authentication
3. Integrity
4. Non Repudiation.