How can i know the encrytion used to make salt and handshake for the following post request

{
“Token” : “”,
“DateTime” : “2023-08-14T16:44:06”,
“Handshake” : “dc77ba454178a4f1039daf44a700b15c76cc29654a0ed8db5da376f76c79b522”,
“DeviceId” : “4C66F2B4-945B-4BA8-84CF-A3EE5F4168E1”,
“Password” : “doublejoY1$”,
“UserName” : “doublejoy”,
“Salt” : “61CA0E61-9302-47AB-AA55-CA21CBBC4393”,
“RememberMe” : “false”
}

Read the java script

it is from an iphone app, how do i read the javascript on ios app?