Browsing by Author "Suneetha, C. H."

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    New password embedding technique using elliptic curve over finite field
    (Springer, 2019) Sravana Kumar, D.; Suneetha, C. H.; Sirisha, P.
    In the present sophisticated digital era, safe communication of user password from one source to the other is quite difficult in client/server system. Also storing the password as it appears increases the potential risk of the security. Protection of the password is at most important in group communications to avoid the access of the illegal person to group resources. In addition, a roaming user who uses the network from different client terminals requires access to the private key. The present paper explains secure communication of password from one entity to the other. Here the password is encrypted using elliptic curve over finite field, embedded in a large random text at different selected positions, and communicated to the receiver via public channel.
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    Security and authentication architecture of block cipher using mathematical operation and one-way hash function
    (International Journal of Mathematics Trends and Technology (IJMTT), 2017-09) Suneetha, C. H.; Sravana Kumar, D.; Sirisha, P.; Sandeep, K. M.
    Extensive growth of telecommunication network provides easy and quick techniques of communicating the information. Rapid development of information technology has given the scope to huge range of new possibilities of internet hacking. Solution to the security problems expanded the field of cryptography. The present paper describes a block cipher mechanism for message confidentiality and authentication using simple arithmetic, logical operations and one-way cryptographic hash functions in two different stages. Agreed upon primary or Master key is used to generate number of sub keys for encrypting different message blocks to extend the lifetime of the master key using some permutation function.