An Approach to Avoid Intruder Attack While Transmitting Large Message Over Insecure Channel

Computer Engineering

21st century is information century. Information technology is used in every area form earth to universe. Information security is important in today’s world. Because in today’s intruders are increasing to affect information security. Intruders are affect information security like to change, destroy, illegal access, selling information, etc. Especially when information is travelling in insecure network. In todays and past widely use cryptography to secure information from intruder in insecure channel. In cryptography has two methods to secure information. Both methods have own advantages and disadvantages. Symmetric key cryptography has use only one key for encryption and decryption. It is a secure when key is secure. To provide a security to key in transfer in insecure network use asymmetric key cryptography. In asymmetric key cryptography use two key one is public and another is private. Asymmetric key cryptography is providing more security compare to symmetric key cryptography. Symmetric key cryptography is fast and asymmetric key cryptography is slow compare to each other. Use hybrid cryptography for avoid intruder attack while transmitting large message over insecure channel.

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