Master Computer Networks & Programming for KPSC Exams 🔍 | Encryption, Algorithms & More

Computer Networks and Programming | 01 Symmetric and asymmetric encryption including DES, AES, IDEA, RSA algorithms | Kerala PSC (KPSC) | Computer Programmer | Database Administrator | System Analyst | COMPUTER PROGRAMMER -CUM-OPERATOR

In this video, we delve into the core concepts of symmetric and asymmetric encryption, exploring how each method secures data and its applications in real-world security systems. Starting with symmetric encryption, we discuss its efficiency in encrypting large datasets, using a single shared key for both encryption and decryption. We examine the widely used DES (Data Encryption Standard) and its successor, Triple DES (3DES), highlighting the key lengths, encryption processes, and security levels. We then explore the strengths of AES (Advanced Encryption Standard), known for its robustness and key size flexibility, making it a standard for HTTPS and VPNs. We also cover IDEA (International Data Encryption Algorithm), which uses modular arithmetic for secure encryption with strong resistance to differential cryptanalysis. Shifting to asymmetric encryption, we introduce RSA (Rivest–Shamir–Adleman), a public-key algorithm widely used for secure key exchange over insecure channels. With RSA, we outline the process of generating public and private keys through large prime factorization, discussing its strength and limitations in handling large datasets. Join us as we break down each encryption method, from key lengths and block sizes to encryption steps and security implications, providing a clear understanding of modern cryptographic practices.

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