Categories
Adv. programming for DB apps.

FIT5059 – Adv. Prog. for DB Applications Week 9

Menu’s were the topic of week 9.

  • Pop up
  • Pull down
  • Tabbed

pulldown
pull down menus are canvas independent
pop up menus must have programmed triggers
Categories
Natural computation for intell. sys.

FIT5167 – Natural Computation Week 9

Natural computation’s 9th week saw an introduction to associative memory networks.

 

Two major types of associative networks

Initialization of an Bi-Directional Associative memory network involves establishing a weight matrix using input and output pairs:

BAM initialization

It seems much easier to write a simple script which demonstrates understanding of the weight initialization and memory recall algorithms. Hopefully I can do that this week. The major question that comes to mind after this lecture was why these networks would be used instead of a SOM.

Categories
Network security

FIT5044 – Network Security Week 9

Week 9 continued from IPsec into security at the transport layer, specifically SSL. Unsurprisingly, given that SSL uses public key cryptology is used at least in the initial stages of all SSL connection, distribution and authentication of public keys was the first issue raised. The use of certificate authorities providing signed keys is the current solution. Similarly to IPsec, authentication, integrity and confidentiality are the goals of SSL.

With such a wide number of computers using SSL, there needs to be provisioning for different cypher suits which is included in the SSL handshake:

 

SSL
SSL handshake initiated the transport layer security

 

There was also some discussion over the definition of sockets, my interpretation is that they are basically application layer ports. A better explination can be found here: http://pro-programmers.blogspot.com/2009/02/socket-vs-port.html

Work also began on the second assignment, development of firewalls using iptables.