How many years to study cryptography?

Studying cryptography typically requires a solid foundation in mathematics and computer science, often taking about 4-6 years if pursued at the undergraduate and graduate levels. A bachelor's degree in a related field may take 4 years, followed by 1-2 years for a master's degree focused on cryptography. However, self-study or online courses can also provide valuable knowledge in a shorter time frame, depending on the individual's dedication and prior experience.