'International Journal of Computer Engineering and Applications'
Abstract
With the rapid development of technologies, more data are generated and transmitted in the medical, commercial, and military fields, which may include some sensitive information. So, security is essential to transfer the important information securely over the communication channels. To fulfill the information security requirements, many security systems were proposed in many research areas. On the other hand, many cryptographic algorithms are analyzed and optimized to evaluate better performance according to their requirements. This work proposes digital envelope system in order to meet the security requirement such as confidentiality. To create digital envelope system, the original message is encrypted by using Rivest Cipher-6(RC6) with the help of secret key. Then, that secret key is encrypted by using the ONTRU (Optimized Number Theory Research Unit) with the help of Receiver’s public key. Moreover, this work also focuses on the optimization of NTRU to obtain better execution time for the digital envelope system. According to the analytical results, it is found that ONTRU is faster than NTRU. The basic idea behind this paper is to provide a good, faster digital envelope system
