Uses a single shared secret key for both encryption and decryption. Asymmetric Key: Uses a public/private key pair.
Substitution and Transposition techniques. 3. Symmetric Key Algorithms (Modern Cryptography) cryptography and network security atul kahate ppt
A framework that defines security services, mechanisms, and attacks. 2. Cryptography Concepts and Techniques Uses a single shared secret key for both
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Based on the difficulty of factoring large prime numbers.
Classified into Passive Attacks (monitoring/eavesdropping) and Active Attacks (modification of data, fabrication, or interruption).