Flowchart and Pseudocode for my application

my app is touch stroke dynamic authentication. user opens the welcome screen, then choose the signup page or login page. In signup page, he\she enter the required text (and if the text is correct) the features data is extracted and stored in the database. In the login phase after the user enters the text(if the text is correct), features data also extracted and stored in the DB to classify if the features data in the login phase match the features data in the signup page(accepted) or not(rejected). (the phases for chicking the email correction and existing are required)