Course Preview
- Duration
- 2h 38m
- Difficulty
- Professional
- Instructor
- Piotr Kaluzny
- Videos
- 8
- Quizzes
- 6
- CPE Credits
- 3
- Published
- Nov 10, 2021
- Updated
- Aug 08, 2025
Encryption Fundamentals
Encryption Fundamentals explores the foundational principles of securing data by converting readable information into an unreadable format to protect it both during storage and transmission. It helps learners understand how plaintext is transformed into ciphertext, the critical role of cryptographic keys, and how encryption ensures that intercepted data cannot be interpreted by unauthorized users. The course also links core cryptographic concepts with real-world network communication, demonstrating how encryption influences data flow and strengthens overall security. This serves as an essential starting point for learners preparing to advance into topics such as VPN technologies, secure communication protocols, and broader network security architecture design.
Instructor

Piotr Kaluzny
Course Instructor
Piotr Kałużny, MSc in Computer Science and CCIE #25665 (Security), has been in the networking industry for over 9 years, working in different Routing & Switching and Security roles. His responsibilities ranged from operations and engineering to consulting and management. Piotr already has an extensive background as a Senior Technical Instructor. For the past several years he has been solely responsible for designing, developing and conducting Cisco CCNA, CCNP and CCIE training courses for one of the largest and most respected Cisco training company in the world.
