Security System for DNS using Cryptography

DNS, Domain Name System is a protocol that resolves hostnames to IP Addresses over the Internet. DNS, being an open source, it is less secure and it has no means of determining whether domain name data comes from an authorised domain owner. So, these vulnerabilities lead to a number of attacks, such as, cache poisoning, cache spoofing etc. Hence, there is a need of securing DNS. Digital Signatures are a good way of authyenticating the domain owners. The paper presents the Domain Name System security concept,. Digital Signature algorithms helps in providing good level of security to DNS. Software like OpenDNSSEC, BIND, Secure64 etc. It involves the signing of DNS using cryptographical algorithms (e. g. , RSA, DSA etc. ). Further, ECDSA is one way that provides same level of security, as security provided by RSA for low power and portable devices. So, here we proposing a new ECDSA implementation that can be used to secure DNS.