Post user registeration, if you want the user credentials to be managed by SDK, you can provide a data vault password to securely store the data.
- (void) setAppCredentials: (NSString *) username withSecurityConfig: (NSString *) securityConfig withPassword: (NSString *) password withVaultPassword: (NSString *) vaultPassword
@try{
                [userManager setAppCredentials:<user name> withSecurityConfig:<security config> withPassword:<password> withVaultPassword:<vault password>];
}
@catch (NSException* e) {
                // Exception Handling
}