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!
Technology
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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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Paying off technical debt
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Every successful development team has two things in common: They’ve shipped a product, and they accepted compromises to make that shipment possible.
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Cryptopals: Set 1 – challenge 5
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Breaking encryption is fun. Building an encryption cipher is even more so! Let’s continue our Cryptopals journey with XOR.
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Cryptopals: Set 1 – challenge 4
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Now that we know how to crack a single-byte XOR cipher, let’s expand and crack even more through Cryptopals’ next challenge.
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Cryptopals: Set 1 – challenge 3
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Next up in our Cryptopals walkthrough is some frequency analysis against simple cryptographic keys. Let’s have some fun!
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Cryptopals: Set 1 – challenge 2
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Building on our cryptopals encoding work last time, let’s introduce byte-based XOR operations.
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Cryptopals: Set 1 – challenge 1
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Challenge 1 in the cryptopals suite is to juggle between Base64 and Hex encoding of byte strings. Let’s do just that, with value objects!