IoT research is booming, but security and privacy concerns still exist. Crypto currencies are powered by blockchain technology, which makes it possible to conduct transactions from one person to another that are safe and secure. A decade after its inception, blockchain technology still requires a great deal of enhancement despite its much advancement. Various mechanisms are used to provide security to the proposed blockchain system. The proposed model uses SHA Secure algorithm to track financial transactions. A valid client can only access data acquired from the system when they are authorized, therefore providing the first level of security. In regulate to admission the transaction system, the user must be authenticated. Hashing is used to secure the transactional information stored on local systems using block chain expertise. As with the previous step, the hash generated in two places is divided and guarded. Results of our experiments indicate the planned format is indeed improved in privacy, authentication speed, and data security by using several security mechanisms.