Multi-Keyword Graded Exploration in Encrypted Cloud Data for Industries Based on Rc4+ and Forest

The vast amounts of storage space offered by the cloud encourage businesses to store their most sensitive files and data on remote servers accessible over the internet. When comparing a local server and personal computer to a cloud environment, it's clear that many more tasks can be accomplished with the former. Cost, speed, global scalability, productivity, and performance are just a few of the six reasons why cloud services have gained popularity among businesses and consumers alike in recent years. This paper presents the River cypher RC4+ (RCPF) scheme for fast, efficient, and secure multi-keyword search indexing in an encrypted cloud environment. In order to encrypt and decrypt data, the RC4+ algorithm uses a final symmetric secret key that is created by a pseudorandom byte generator. In order to generate an index list for each file in a shorter amount of time, a minimal spanning tree is formed. After that, the encrypted index list is searched by the cloud server, and relevant files are ranked according to the search query. The user's decryption of the encrypted data using the symmetric key behaves as a whole.