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Basic cryptography – Diffie-Hellman key exchange
How do you communicate securely over an insecure medium? Using the Diffie-Hellman key exchange to agree on an encryption key is a start!
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Fear of deployment
Everyone experiences fear, especially creatives like developers. Overcoming that fear to ship an imperfect 1.0 is the only way we learn.
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One month with WordPress
After using WordPress’ new editor for a month, here are some of the pros and cons I see as a writer using the platform.
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You absolutely SHOULD roll your own crypto
Expert cryptographers will warn you to never roll your own algorithms. Well, they’re wrong and here are three reasons why.
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Basic cryptography – the Vigenere cipher
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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Different cipher types
Anyone studying cryptography needs to understand various forms of ciphers. Today, we’ll look at three that you should know well.
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Basic cryptography – the Caesar cipher
One of the most basic encryption schemes is the Caesar cipher. It’s weak in practice, but a great way to learn how crypto works.
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Modulo arithmetic with large numbers
Modulo arithmetic with numbers large enough to ensure cryptographic security is complicated, particularly in PHP. Let’s work around that…
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Modulo exponentiation in PHP – three ways
Modulo exponentiation lies at the core of most modern crypto. Learn three different ways to perform this calculation in PHP.
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Ethics in technology and advertising
Ethics is one of the more complicated concepts in tech. Everyone knows what it is, but ethics become frighteningly easy to ignore.