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Eric Mann's Blog

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  • Cryptopals: Set 1 – challenge 7
    March 13, 2022

    Cryptopals: Set 1 – challenge 7

    Next up with Cryptopals is a challenge to decrypt AES in ECB mode. This is relatively easy in PHP!

    Security, Technology
  • Cryptopals: Set 1 – challenge 6
    March 12, 2022

    Cryptopals: Set 1 – challenge 6

    A return to Cryptopals means we get to break the repeating-key cipher we were working with before. Breaking crypto is fun!

    Security, Technology
  • Limiting network egress
    March 11, 2022

    Limiting network egress

    Blocking incoming traffic is only half of a firewall’s features. Today let’s look at limiting outgoing traffic!

    Security, Technology
  • Basic firewall usage
    March 10, 2022

    Basic firewall usage

    If you run a server in the cloud, you need to use a firewall to protect it. Let’s look at the most basic settings of Ubuntu’s ufw system.

    Security, Technology
  • Overcoming imposter syndrome
    March 9, 2022

    Overcoming imposter syndrome

    Though it’s easy for me to think so sometimes, I am NOT an imposter. Neither are you.

    Technology
  • Imposter syndrome
    March 8, 2022

    Imposter syndrome

    When are they going to notice? That I don’t belong here? That I’m an imposter. Oh no … I think they already know!

    Technology
  • Headless WordPress
    March 7, 2022

    Headless WordPress

    I’ve not yet been able to wrap my head around the current buzz around “headless” WordPress sites….

    Technology
  • Cooking with credentials – pepper
    March 6, 2022

    Cooking with credentials – pepper

    No meal is complete without salt AND pepper. No password hashing scheme is truly secure without both, either!

    Security, Technology
  • Cooking with credentials – salting
    March 5, 2022

    Cooking with credentials – salting

    Learn how to securely hash and anonymize user passwords in PHP using native functions that automatically apply salt.

    Security, Technology
  • Cooking with credentials – the basics
    March 4, 2022

    Cooking with credentials – the basics

    There are many ways to store user credentials for verification on the application side. Of all of them, only hashing is considered secure.

    Security, Technology
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