CRYPTO NEWS

Common applications and simple implementations of stream ciphers

I am learning about stream ciphers, which apparently are unpopular. I just want to have a better idea of some basic algorithms that are in use or were in use till recently.

I checked:

the OTP: Apparently great but unpractical
Linear Congruent Generator: insecure
LFSR: not sure yet but it appears insecure

Can you suggest a few not overly complicated stream cipher algorithms, with some practical relevance, that one should check and maybe indicate where is it applied ?

Transaction triggered successfully but users can edit transaction amount, How can I stop this?

I’ve recently added FTM payments to my website and discovered once the transaction is sent to MetaMask everything goes to plan but looking at the image below, Users can directly edit the amount sent using the edit button. I want to charge a fixed amount which can’t be edited. How can I achieve this?