Affiliation:
1. Princess Sumaya University for Technology, Jordan
2. De Montfort University, UK
Abstract
This chapter delves into the fundamental and advanced aspects of cryptography, an essential discipline for securing information in our digital age. It outlines the core concepts including encryption, decryption, ciphers, keys, and algorithms, which safeguard data integrity, confidentiality, and accessibility. The discussion extends to the distinctions between symmetric and asymmetric cryptography, their specific applications in various sectors, and the role of cryptographic hash functions in ensuring data integrity. Additionally, the chapter explores recent advancements such as quantum cryptography and the implications of artificial intelligence in cryptographic solutions. It also addresses the societal and technological impacts of robust cryptographic practices, balancing security needs with ethical and legal considerations. This comprehensive overview underscores the critical role of cryptography in protecting digital interactions and data in an increasingly interconnected world.