
Cryptography and Encryption: Symmetric and Asymmetric Encryption, Certificates, PKI, and Digital Signatures
Make informed choices about data protection, digital trust, and secure communications
Created by Rahul Kaundal
Explore the foundations of cryptography and encryption, from shared keys to digital signatures. Learn how encryption, certificates, and key management work together to protect data and build digital trust. Gain the knowledge needed to make informed decisions about secure communication and data protection.
Packt | Oct 2026 | 120 min
What You Will Learn
You will start with the basics of plaintext, ciphertext, and keys, then move through real-world examples of encryption methods like AES and RSA. Each section builds your understanding of how certificates, digital signatures, and key management are used in IT. By connecting concepts to practical scenarios, you'll see how cryptography supports secure communications.
Key Features
- Distinguish symmetric, asymmetric, and hybrid encryption for better security choices
- Understand digital certificates, PKI, and trust chains to verify identities and data
- Learn to evaluate key management practices for stronger data protection policies
Target Audience
Ideal for IT professionals, security analysts, and system administrators looking to strengthen their understanding of encryption and digital trust. If you have a basic grasp of networking and data security, you'll gain practical skills to compare encryption methods, explain digital certificates, and assess key management in your organization.





