The overview on cryptography and network security is given by various algorithms. This project provides focuses on network security with digital signatures. Network security and cryptography is the concept covering a wide range to secure the data in digital form by giving protection services. The digital signature gives an entity to secure the identity with a piece of data. The digital signature is attacked by the common attack.

The first concept was the RSA signature scheme which is much versatile and practical technique present. There are other methods of digital signature are DSA and related signature schemes. Digital signatures include various applications in authentication, data integrity, non-repudiation, and information security.

The DEFENDING SYN ATTACK IN TCP USING CRYPTOGRAPHY Project Report focuses on recent developments in network security and cryptography with respect to digital signatures. Cryptography is the tool to secure secrets of nation and strategies. The computers and communications systems proliferation provide private sector to secure data in digital form with security services.

The Data Encryption Standard DES is the popular cryptographic mechanism. It is the standard method to protect commerce for financial institute around the globe. The digital signature relies on secret exposed only to the signer. Signatures should be verifiable.

The first method RSA signature scheme is the versatile technique and Feige-Fiat-Shamir signature scheme needs a one-way hash function. Cryptography is the concept regarding information security which is very much essential.

Conclusion:

Hence it is concluded that information security clarifies in various methods based on requirement. The set of mechanisms and protocols are made to deal with issues of information security if the data is transferred by physical documents.

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