Eric Mann's Blog

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  • You absolutely SHOULD roll your own crypto
    January 31, 2022

    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.

    Security, Technology
  • Basic cryptography – the Vigenere cipher
    January 30, 2022

    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.

    Security
  • Different cipher types
    January 29, 2022

    Different cipher types

    Anyone studying cryptography needs to understand various forms of ciphers. Today, we’ll look at three that you should know well.

    Security, Technology
  • Basic cryptography – the Caesar cipher
    January 28, 2022

    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.

    Technology
  • Modulo arithmetic with large numbers
    January 27, 2022

    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…

    Technology
  • Modulo exponentiation in PHP – three ways
    January 26, 2022

    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.

    Technology
  • Ethics in technology and advertising
    January 25, 2022

    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.

    Business, Technology
  • Today’s youth will define tomorrow’s technology
    January 24, 2022

    Today’s youth will define tomorrow’s technology

    The youth of today will define tomorrow’s technology. The world forgets this fact at our own peril.

    Technology
  • Understanding modulo arithmetic with clock functions
    January 23, 2022

    Understanding modulo arithmetic with clock functions

    Modulo arithmetic is at the core of most every secure asymmetric cryptography algorithm. Clock functions make it an easier topic to master.

    Technology
  • How do you stay current?
    January 22, 2022

    How do you stay current?

    What tools do you use to stay current with technology? Here are some podcasts and reading materials I use to stay up on new trends.

    Technology
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