Basic Cryptography
Cryptography is essential for securing information in the digital age, encompassing both mathematical and computational methods for protecting data integrity, confidentiality, and non-repudiation. This module explores the key principles of cryptographic algorithms, including symmetric and asymmetric methods, and highlights the role of digital certificates and public key infrastructure in establishing trust. Additionally, it emphasizes the importance of robust random number generation for cryptographic security.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Cryptography provides critical services for safeguarding data throughout its lifecycle.
- Symmetric and asymmetric cryptographic algorithms have distinct roles and challenges.
- Digital Certificates and PKI establish a framework for trust in public-key cryptography.
- A robust PRNG is essential for the security of cryptographic systems.
Key Concepts
- -- Cryptography
- The science and art of secure communication amidst potential adversaries.
- -- SymmetricKey Cryptography
- An encryption method where the same key is used for both encrypting and decrypting data.
- -- AsymmetricKey Cryptography
- A method using a pair of keys (public and private) for encryption and decryption.
- -- Hash Function
- An algorithm that converts input data into a fixed-size string, used in integrity verification.
- -- Digital Signature
- A cryptographic mechanism that provides authentication and integrity for messages.
- -- Public Key Infrastructure (PKI)
- A framework to manage digital certificates and establish trust in public key systems.
Additional Learning Materials
Supplementary resources to enhance your learning experience.