How or where can I improve my knowledge and skills about cryptography as much as possible? I know sololearn offers some encryption lessons, but I feel it's not enough any language, website, or videos on youtube that you find useful is considerable
start here https://www.sololearn.com/learn/9850/?ref=app beyond that Google it.
BroFarOps I know there is this lesson in sololearn, I've read it many times to fix all the knowledge, but I feel that this is not enough I want to know if anyone who has an advanced knowledge in this matter knows any other course or tutorial on the Internet to indicate me
yes there is more on Khan University, udemy and freecode playground, as well as others....