Cryptography Presentation Topics SXC

These are some presentation topics. Marked ones have been completed. Kindly tell us your topic in the comments for record. 

Presentation topics (Post 11th April 2016)
SN.	Topic	Presenter	Presented?
1.	Modular Arithmetic	Abhishek Tamrakar	YES
2.	Primitive Roots & Discrete Logarithm	Alok Shrestha	YES
3.	Groups	Binod Marikhu	YES
4.	Rings	Binod Paneru	YES
5.	Fields	Pratik Gautam	YES
6.	Ring of polynomials	Bikash Paneru	YES
7.	Residue class rings	Pankaj Niroula	NO
8.	Finite Fields	Linus Dhakal	YES
9.	Quadratic Residues	Siddhant Rimal	NO
10.	Modular Square Roots	Yubraj Basnet	YES
11.	Primes	Utsav Luitel	YES
12.	Prime factorization and primary tests(introduction)	Divya Jyoti Pokharel	YES

Show older presentations i.e. Before April 11th 2016(Some topics left)

Pre - 11th April 2016 (Some topics left)
SN.	Topic	Presented?
1.	Virus	NO
2.	Worms	NO
3.	Trojan Horse	NO
4.	Ceaser Cipher (Classification:Substitution)	YES
5.	Mono alphabetic Cipher (Classification:Substitution)	YES
6.	Playfair Cipher (Classification:Substitution)	YES
7.	Polyaphabetic Cipher (Classification:Substitution)	YES
8.	Hill Cipher (Classification:Substitution)	YES
9.	Vigenare Cipher (Classification:Substitution)	YES
10.	Kaisiski Method (Classification:Substitution)	YES
11.	Autokey Cipher (Classification:Substitution)	YES
12.	Vernam Cipher (Classification:Substitution)	YES
13.	One Time Pad Cipher (Classification:Substitution)	YES
14.	Rail Fence Cipher(Classification:Transposition)	YES
15.	Row Transposition Cipher(Classification:Transposition)	YES
16.	Rotal Machine (Classification:Product)	YES
17.	Setgarography (Classification:Product)	NO