E-commerce and mobile commerce are two new business methodologies that utilize the cloud. A new technology called cloud computing uses the Internet to process and store data from a network of distant computers that are dispersed around the globe. Any online transaction must have security as a necessary component. Therefore, one of the main issues with the cloud is security. If electronic commerce's security is breached, customers can lose trust in it. An unauthorized individual should not have access to or be able to intercept a customer's personal information while it is being transmitted. Data integrity is a major problem since personal information shouldn't be changed before, during, or even after it is at rest on the network. The suggested solution ensures the protection of personal data and the avoidance of security problems. We have developed a solution in this study to address issues with privacy, confidentiality, and the integrity of data stored in the cloud, among other security-related issues. The suggested method employs over-encryption that is double encryption, to avoid the various security issues. It can be inferred from the results that ECC (secp256r1) utilised less time for encryption operation as compared to others asymmetric algorithms with small dispersion from means and recorded results behaviour of data is consistent because data point tends to be very close, Decryption operation ElGamal during of time was smaller than ECC and RSA with small consistent behaviour.