• K.Vaishnavi
• T.Ramya Sri
• K.Sankeerthana

In the word of internet in every second huge amount of data being generated every day on the internet. Securing information from hackers and providing security is a biggest challenge. To solve this problem, we have used cryptographic algorithms. Cryptography is very useful to ensure privacy and information security for making internet a safer place. Despite the numerous cryptographic algorithms being implemented in our world today, we still encounter issues of their usage. While some are very efficient in communication across networks, others are better in the file encryption such as images, text files etc. This security concern can be solved using various ways the most commonly used techniques are cryptography and steganography. But sometimes a single technique or algorithm alone cannot provide high-level security. So, we have introduced a new security mechanism that uses a combination of multiple cryptographic algorithms where three algorithms are combined together to make strong bond in securing the data along with that we have also compared the algorithms to check the best level of security in faster time. These three algorithms generate symmetric key and inbuilt steganography for securing the data. The three cryptographic algorithms are, AES (Advanced Encryption Standard), 3DES (Triple Data Encryption Standard), CAST (Carlisle Adams and Stafford Tavares) algorithms. The result of three algorithms provides strongest security with less time of encryption and decryption. All the algorithms use 128-bit keys. Comparing all the three algorithms for best performance and high-quality result.

AES, 3DES, CAST, LSB Steganography

"Comparative analysis using cryptographic algorithms for securing data", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 6, page no.f694-f697, June-2022, Available :http://www.jetir.org/papers/JETIR2206588.pdf

"Comparative analysis using cryptographic algorithms for securing data", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 6, page no. ppf694-f697, June-2022, Available at : http://www.jetir.org/papers/JETIR2206588.pdf