Applications of cryptography

Cryptography is a crucial technology that provides security for data and communications, enabling various applications across multiple fields. Here are some key applications of cryptography: 1. **Secure Communications**: - **Email Encryption**: Tools like PGP (Pretty Good Privacy) and S/MIME are used to secure email content against unauthorized access. - **Messaging Apps**: Applications like Signal and WhatsApp use end-to-end encryption to protect user conversations.