Caesarcipher is a commonly known encryption method although it is known for being unsure, even long before computers were invented. Even though it is unsure it can still be used for cryptography, JackTheRidder consists of two main algorithms where one of them is based on the Caesarcipher. With many rotations of Caesarciphers on different parts of texts, like many Vigenerecryptos of different sizes overlapping each other, makes the encryption secure. The other main algorithm of JackTheRidder is based on the Collatz Conejcture, which is a famous unsolved mathematical problem. This algorithm counts the amount of steps it takes before the chosen number reaches 1 and then moves the letter with those steps which results in the encryption. The amount of steps is a result from a positive integer going through Collatz Conjecture, which divides the integer if its even and uses (3𝑥+1)/2 if the integer is odd. The algorithm then moves to the next character to encrypt and adds one to the integer used. JackTheRidder is an encryption method created by the authors of this project and further will be analyzed in this essay. The focus of this essay is to analyze how Collatz Conjecture and Caesarcipher functions in encryption methods. JackTheRidder is going to be examined through literature study and experiments. There are three criterias that JackTheRidder is going to be analyzed from; security, robustness and efficiency. The results indicate that JackTheRidder needs to be optimized and be written in machine code for it to be able to get better implemented in society. JackTheRidder is proven to be better than AES in the chi2 test which is an indicator that it might be a viable option for replacement. Overall in the experiments, JackTheRidder held a high level which is a positive outcome but still it is not guaranteed to be secure enough to be implemented into the society at this stage of developement.

The contracting company is in the desire of an autonomous system that can do tedious administrative work that is today done manually. They would like to autonomically notify customers about incoming alarms from the customers’ real estates’ Data Under Centrals and to notify about bookings, in which a complete booking system has to be created, together with a file system analyzer that notifies about new files in the customers’ project folders. A notification system was made that was easily deployable and ready to use. The system had to be completely configurable for the contracting company to use it to its full potential. The notification system was to send notifications when a new alarm had entered the database, a booking had to be reminded of, a rebooking was made or a file had been added to the file system in a designated project folder. The contracting company had a web portal that was further developed in ASP.net in which a booking calendar and booking viewer page was added together with a form creation and management system. A demo buttons page was also added for generating demo notifications for the company to show it’s customers how the system responds to certain events. The employees at GATE IBS feel confident that this system will help them in their working environment to further strengthen their position as an industry leading business in control- and monitoring technology. / Det uppdragsgivande företaget önskar ett autonomt system som kan utföra tidskrävande administrativt arbete som idag utförs manuellt. De vill autonomt informera kunderna om inkommande larm från kundens fastigheters "Data Under Centrals" samt meddela om bokningar där ett komplett bokningssystem måste skapas tillsammans med en filsystemanalysator som meddelar om nya filer i kundens projektmapp. Ett notifikationssystem gjordes som var enkelt att distribuera och redo att använda. Systemet måste vara helt konfigurerbart för att det uppdragsgivande bolaget ska kunna använda programmet till sin fulla potential. Anmälningssystemet skulle skicka meddelanden när ett nytt larm hade kommit in i databasen, en bokning måste påminnas om, ombokning gjordes eller en fil hade lagts till filsystemet i en utsedd projektmapp. Kontraktsföretaget hade en webbportal som vidareutvecklades i ASP.net där en bokningskalender och bokningsvisningssida lagts till tillsammans med ett formulärgenererings- och formulärhanteringssystem och en demoknappssida för att generera demonotifikationer för att företaget ska kunna visa kunderna hur systemet svarar på vissa händelser. De anställda på GATE IBS är övertygade om att detta system kommer att hjälpa dem i sin arbetsmiljö för att ytterligare stärka sin ställning som branschledande företag inom kontroll- och övervakningsteknik.