Category: Computer science and IT assignments

Decrypt RSA

January 14, 2020 No Comments Computer science and IT assignments, Graduate

The file s81170-cipher.bin contains data encrypted using the ARIA-128-CBC method.

First decrypt data in the file s81170-cipheredkey.bin. They were encrypted with RSA and can be decrypted with the function RSA_private_decrypt (). Optimal asymmetric encryption padding was used. You must therefore specify RSA_PKCS1_OAEP_PADDING as a parameter. You can work with the function PEM_read_PrivateKey () from the file rsakey.pem.

Now decrypt the data in the file s81170-cipher.bin. The type of the ARIA-128-CBC procedure is returned by the EVP_aria_128_cbc () function in libcrypto. Using the key parameter (key, possibly initialization vector, in this sequence), you have decrypted in the last step. The length of the required parameters can be determined from the type with the functions EVP_CIPHER_key_length () and EVP_CIPHER_iv_length ().

Encrypt the plain text with the cipher CAST5-CFB, the type of which returns the function EVP_cast5_cfb64 (). Using the key parameters (key, possibly initialization vector, in this sequence), the in immediate sequence in the file s81170-key.bin existing.
Save the encrypted data in a file called s81170-result.bin.

Please limit yourself to a source code file s81170.c

Web design for a local restaurant

January 14, 2020 2 Comments Computer science and IT assignments, High School

You are required to design a customized software for your client, who happens
to own a restaurant at a
tourist place. Due to the shortage of manpower the owner wants to automate some
processes. The client
wants  to  have  a  computerized  display  on  the  entrance  for  booking of 
tables.  Using  the  same,  customer
should be able to check for vacant tables and select tables too for booking.
The restaurant has 10: 2-seater
tables; 5: 4-seater tables and 2: 10-seater tables. Apart from that customer
should be able to place order for
food and should be able to see the bill when done. The client also wants to
update items, their prices and
the table status as per the need. The new system should be able to generate
various types of reports as the
final outcome. After interview you have understood the requirements and done
the feasibility study before
proposing the new system.

Natural Language

January 14, 2020 3 Comments Computer science and IT assignments, Undergraduate

You are asked to complete 4 Jupyter notebooks which are provided with these guidelines:
a3 1.ipynb
a3 2.ipynb
a3 3.ipynb
a3 4.ipynb
A separate notebook has been provided for each question since the questions are independent of each other and so that the notebooks load and run faster. The questions are based on activities that you have already completedinlabs,mainlyduringweeks8-11ofthemodule(althoughearlier material may also be relevant). Any code you have developed during the labs can be submitted as part of your answers to the questions in the assignment. To score highly on this assignment you will need to demonstrate that you:
understand the theory and your code;
can write and document high quality python code;
can develop code further to solve related problems;
can carry out experiments and display results in a coherent way;
can analyse and interpret results; and can draw conclusions and understand limitations of the technology.
can design and build prototype systems combining off-the-shelf technologies into a practical language processing system
For this report you should submit 4 Jupyter notebooks containing all of your answers to all of the questions (or 3 Jupyter notebooks for questions 1-3 and a pdf document for question 4). You may import from standard libraries and the sussex nltk resources which you have been provided with. If you wish to import any other code, it must be included in the zip le with your Jupyter notebooks. It must be possible for the assessors to run your Jupyter notebooks.

Hashtable implementation

January 13, 2020 No Comments Computer science and IT assignments, Undergraduate

Need the project to be done in intellij or eclipse so it will work for the lecturerer that will asses this. The assesment is to impliment a hash table so it works with the included tests. Only need it to reach around 40-50 % 60% if the one that does this finds it easy. All files included with assignment and project files. I will do the report myself. So would need the project filesd by the 15 th if possible. Price can be discussed as i do not know normal pricing

Tree viewer associated with an algebraic expression

January 11, 2020 8 Comments Computer science and IT assignments, Undergraduate

  In C++: Starting from an algebraic expression, the tree associated with this algebraic expression will be created, and then it will be graphically represented, with different options, on the computer screen. You are not allowed using STL such as stack,queue etc. and for graphics you can use Processing,WinBGIm,SFML,SDL.
  Also the expression can have these Trigonometric functions and others : https://docs.microsoft.com/en-us/dotnet/visual-basic/language-reference/functions/math-functions

Object Tracking

January 10, 2020 2 Comments Computer science and IT assignments, Undergraduate

The following has to be done:

The aim of this project is to make a program which will allow the user to take a picture of the desired object. The whole point is that the program will be constantly calculating the ratio of width to height of the object in question. Basically if a person is to stand in a room at a particular position in the room and takes a photo of the object in that particular position, the object will have a given set of dimensions at that point. If the user was to stand at another location in the same room and takes a photo of the same object at a different location, this would result in the object having different set of dimensions. The goal is to find the position in the given space at which the ratio of width to height will be at the golden ratio (1.618). This would be done by creating a 3D arrow as an interface (see Spiderman 2 videogame for an example) which would be able to point in both x,y,z direction in order to guide the user to the location at which the ratio of the object would be golden. Once this location is reached and the ratio is golden the program will automatically take a screenshot of the image in order to get the best results. All existing code on object tracking can be used AS LONG AS IT IS SPECIFIED THAT SOMEONE ELSES CODE IS BEING USED. However the code will have to be tweaked in order to accomplish the objectives above. All code that is written by yourself would have to be explained and commented as to why you are doing what you are doing.
So explanation of the code is crucial and giving credit to already written code that you will use is essential. You can use any programming language you fit best for this task.