• S.Subha Thilagam
• R.Renuka
• P.Abinaya

Abstract: Information is any sort of put away advanced data. Security is about the insurance of benefits. Information security alludes to defensive advanced protection estimates that are applied to avert unapproved access to PCs, individual databases and sites. Cryptography is evergreen and improvements. Cryptography ensures clients by giving usefulness to the encryption of information and validation of different clients. Pressure is the way toward lessening the quantity of bits or bytes expected to speak to a given arrangement of information. It permits sparing more information. Cryptography is a prominent methods for sending essential data in a mystery way. There are numerous cryptographic procedures accessible and among them AES is one of the most dominant strategies. The situation of present day of data security framework incorporates privacy, legitimacy, respectability, non disavowal. The security of correspondence is a urgent issue on World Wide Web. It is about privacy, honesty, validation during access or altering of secret inward records.

Key words: Encryption, Decryption, Authentication, Access Control, Privacy, Validation, Plain Text, Cipher Text, Key.

"Cryptography", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.69-72, June 2019, Available :http://www.jetir.org/papers/JETIR1907I12.pdf

"Cryptography", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp69-72, June 2019, Available at : http://www.jetir.org/papers/JETIR1907I12.pdf