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cryptography and network security: principles and practice global edition william stallings pdf
Cryptography and network security refer to the disciplines that involve securing communication and data transmission over computer networks. These fields encompass the study and implementation of various techniques to protect sensitive information from unauthorized access or interception. Principles of cryptography include encryption, decryption, secure key exchange, and digital signatures, while network security focuses on securing networks through firewalls, intrusion detection systems, and other protective measures. By integrating both cryptography and network security practices, organizations can safeguard their data and communications from potential threats and maintain confidentiality, integrity, and availability of their resources.