“…After the pandemic, many researchers and authors proposed models for the reliability and security of the data of users. These models include free-pairing incremental re-encryption [11], a secure format for the multi-server authentication (MSA) protocol, and a second level of authentication based on cloud-to-client verification. In the MCC classification, the user requests the data; then, once the request has been sent for the safety segment, the consumer request will safely get the data from a cloud.…”