Cooking with credentials – salting
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Learn how to securely hash and anonymize user passwords in PHP using native functions that automatically apply salt.
PHP
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Cooking with credentials – the basics
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There are many ways to store user credentials for verification on the application side. Of all of them, only hashing is considered secure.
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You should learn PHP
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PHP is the language that drives the Internet. It’s not the most publicly loved of languages, but its utilization makes it the most popular.
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A Libsodium-based secure remote password scheme for PHP
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Let’s geek out on my favorite form of authentication – not sending passwords over the wire in the first place!
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String comparison in PHP
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PHP ships with multiple, native mechanisms for comparing arbitrary string values. Let’s take a closer look at two that quantify “sameness.”
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Self-obfuscating value objects
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Sometimes, certain design patterns can aid in security as well as reusability of code. Let’s look at value objects as an example.
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Securing tokens in PHP
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Learn how password reset and other tokens can be secured by splitting the data and leveraging common password hash methodologies.
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Basic cryptography – the Vigenere cipher
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The Vigenere cipher is more complicated that the Caesar cipher but based on the same idea. It uses a running key to keep your message secure.
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Modulo exponentiation in PHP – three ways
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Modulo exponentiation lies at the core of most modern crypto. Learn three different ways to perform this calculation in PHP.
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Reducing associative arrays in PHP
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PHP doesn’t natively support passing associative arrays into array_map(). But there are ways to work around this limitation.