Hi! Here are some of my projects!
I have worked on multiple projects during university. Some have been smaller tasks, and others larger.
Regardless of size, I ensured that each project was completed to the best of my abilities.

Project list
Python Projects
1. RSA Messenger
about
With the rise of mobile usage it has become a popular tool for transmitting sensitive information. This sensitive information should be totally secure and reliable to exchange. This urgent need for secure SMS, led to drive for RSA implementation, which is considered one of the strongest algorithms in security. In this project I paid attention to maximize user's convenience and security. For this everytime when users use the program, there will be generated new keys(public key and private key) and cipher text is sent via whatsapp. The program is made by python(kivy). It has two language versions, English version and Korean version. You can use the program not only on computer(exe file) but also on Android(apk file) as you wish since we have two all kind of files.



What is RSA encyption?
RSA (Rivest–Shamir–Adleman) is a public-key cryptosystem that is
widely used for secure data transmission. It is also one of the
oldest. The acronym RSA comes from the surnames of Ron Rivest, Adi
Shamir and Leonard Adleman, who publicly described the algorithm in
1977. An equivalent system was developed secretly, in 1973 at GCHQ
(the British signals intelligence agency), by the English
mathematician Clifford Cocks. That system was declassified in 1997.
In a public-key cryptosystem, the encryption key is public and
distinct from the decryption key, which is kept secret (private). An
RSA user creates and publishes a public key based on two large prime
numbers, along with an auxiliary value.
The prime numbers are kept secret. Messages can be encrypted by
anyone, via the public key, but can only be decoded by someone who
knows the prime numbers. The security of RSA relies on the practical
difficulty of factoring the product of two large prime numbers, the
"factoring problem". Breaking RSA encryption is known as the RSA
problem. Whether it is as difficult as the factoring problem is an
open question. There are no published methods to defeat the system
if a large enough key is used. RSA is a relatively slow algorithm.
Because of this, it is not commonly used to directly encrypt user
data. More often, RSA is used to transmit shared keys for symmetric
key cryptography, which are then used for bulk
encryption-decryption.