Forum topic for this — https://scratch.mit.edu/discuss/topic/534838/ Title by @Vaibhs11 from here https://scratch.mit.edu/discuss/post/5527228/ CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. This is a very good example of a basic CAPTCHA in Scratch. Customizable with difficulty until 100 and a maximum of a 10 digit number. The example shown in the project is difficulty 90 and 6 digits. You can change it accordingly using the "generate captcha" custom block. The reason this is a "very good" example of CAPTCHA in Scratch is because it uses SHA256 to hash the captcha, so you cannot see inside to cheat! Huge huge thanks to @Nick_2440 for remaking the SHA256 algorithm in scratch — https://scratch.mit.edu/projects/238080220/ - Uses Pen, so you don't need to worry about the clone limit - Two sprites, one for the main captcha and the other for the SHA256 algorithm made by @Nick_2440 _____________ Do you want to use this in your projects? Follow the steps here! 1) Backpack the "CAPTCHA" sprite and the "SHA-256" sprite 2) Place both of them in your project 3) Use the block "broadcast 'runCaptcha' and wait" to generate, show and validate the CAPTCHA! #all #tutorials
