The observer pattern
The observer pattern is the most powerful pattern within software engineering when it comes to communication (event handling) within an application.
Category Archives: Technical Journal
The adapter pattern
The adapter pattern is a structural pattern also known as a wrapper pattern. It is mostly commonly used in software engineering where the adaptee can not be altered as it is outside the control of the system and the developer.
The template method pattern
The template method pattern is a behavioral pattern. That means it is a pattern that cannot clearly be seen from UML as the functionality of the pattern is in the behavior (the implementation)
The bridge pattern
The bridge pattern is a design pattern used in software engineering that is meant to “decouple an abstraction from its implementation so that the two can vary independently”, – Wikipedia
Identity providers and their protocols
Within the enterprise arena it is common to have a Identity provider for the organization. In this post I have a brief look at the industry standard protocols.
Custom Error Pages for IIS and Asp.net
Custom error pages are used to hide technical information from end users. Often default error pages can leak technical information to potential attackers. In this post Ill show how to implement custom error pages for IIS and Asp.net to assist with hardening the security of a system.
Hello TLS 1.3
TLS 1.3 is out and its time to take note and plan the retirement of TLS 1.2.
TLS is dead – long live TLS
Remove IIS HTTP server header
HTTP headers leak technical information to potential attackers about a system. To harden the security of an application you need to disclose as little information about a system as possible.
Considerations for GDPR in system design
GDPR or General Data Protection Regulation is a European law relating to the security and data privacy of an individuals information relating to his identity. The law will come in effect on 25 May 2018.
LDAPS – The server is not operational
What is LDAPS? LDAP stands for Lightweight Directory Access Protocol. It is the protocol used to talk to Active Directory (AD). Some people confuse to two and refer to AD as LDAP. LDAPS is the LDAP protocol but with security similar to HTTP and HTTPS. an SSL certificate is used to encrypt the traffic flowing… Read More »
NGINX + https 101 The Basics & Getting Started
Really worth watching this!
FedAuth tokens – Invalid Base64 characters?
Invalid Base64 characters? Invalid XML? Anyone that has had to work with these FedAuth tokens would have experienced errors with the format of the FedAuth tokens.
unable to check revocation
The revocation function was unable to check revocation .. huh? The error ‘The revocation function was unable to check revocation because the revocation server was offline.’ is raised when an application is trying to check if the provided certificate is valid but it is unable to connect to the revocation server.
Complex password validation
Complex password validation Our team had to build a regular expression for a client to password validation and it had the following requirements. Below is the expression for anyone that needs anything like this. Hopefully I safe someone some time.