Explore the fundamental principles of cryptography and their crucial role in modern software security during this 18-minute conference talk from the ISTA Conference. Delve into the power of JSON Web Tokens (JWT) and discover how digital signatures ensure authenticity in software systems. Learn why major corporations are investing heavily in cryptographic solutions to safeguard their infrastructure and data from potential attacks. Gain valuable insights from Stefan K. Zhelyazkov, Associate Software Architect at Musala Soft, as he explains the importance of these security measures in today's technology landscape.