Overview
Cryptography is the practice and study of techniques for secure communication, existing at the intersection of mathematics, computer science, and information security. It involves constructing and analyzing protocols to prevent third parties from reading private messages, with core concepts including data confidentiality, integrity, authentication, and non-repudiation. Cryptography is a crucial component of modern technology, with applications in electronic commerce, digital currencies, and military communications. The field of cryptography is closely related to computer science and information security, with applications in electronic commerce and digital currencies.