The concept of blockchain is now gaining more and more attention than it did in the past. This technique provides an exceptionally high level of security to its potential users. Users are not very knowledgeable about the many ways in which the security of blockchain may be used to ensure the safety of the data that is sent. It has been hypothesised that the individual in question continued to use the "Salsa," a compact and secure device. The brand-new safety feature given the designation RPBB-24-6 is discussed in this academic work. An RPBB-24-6 encryption and decryption process is the way that has been offered, and this method comes with four different processes. Developing a covert message is the first step in the procedure. In the second step of the procedure, you will apply the secret code to each letter of the first secret message and then multiply the code by four times for each letter. Using the matrix as the third procedure, the encrypted data are applied. The application of the salsa approach constitutes the fourth step. Eventually, the plain text was transformed into data that was well secured. © 2025 Elsevier B.V., All rights reserved.