Students of the Mathematics Study Program participated in an educational visit to the Museum Sandi (Cryptography Museum) in Yogyakarta on Tuesday, December 9, 2025. The activity was attended by students of the Introduction to Ring Theory course along with the course lecturer, M. Zaki Riyanto.This visit was part of a contextual learning initiative aimed at broadening students’ perspectives on the real-world applications of mathematics, particularly in the field of cryptography.

The Museum Sandi was chosen as the destination due to its significant role in the history of cryptography and information security in Indonesia. Through this visit, students were introduced to the basic concepts of cryptography, the historical development of cipher techniques, and the role of cryptography in securing confidential information, both during the period of Indonesia’s independence struggle and in the modern digital era.

During the visit, students received explanations about various cipher methods and cryptographic systems used to protect sensitive information. These explanations provided concrete insights that cryptography is not merely theoretical, but has vital and practical implementations in modern life, such as data security, digital communication, and information systems.

This educational visit also emphasized that the mathematical knowledge studied by Mathematics students plays a crucial role in the development of cryptography. Fields such as algebra, group theory, ring theory, linear algebra, and other branches of mathematics serve as fundamental foundations in the design and analysis of modern cryptographic systems.

The lecturer of the Introduction to Ring Theory course, Mr. M. Zaki Riyanto, expressed his hope that this activity would enhance students’ learning motivation and deepen their understanding of the connection between mathematical theory and its real-world applications. Through this activity, students are expected to further realize that mathematics is not only abstract in nature, but also has a strategic contribution to technological advancement and information security.

The educational visit was carried out with great enthusiasm from the students and is expected to be a memorable learning experience that enriches their academic insight.