As a heavy user of Douyin, I laugh at the video every day 😄, I am very happy. But everyone knows that the videos downloaded by Douyin are watermarked. As a programmer with obsessive-compulsive disorder, this is absolutely not allowed. There are many de-watermarking tools on the Internet, what are their principles, and they have written a particularly powerful algorithm. Curiosity drove me to start research
When you are full of confidence, the configuration of the packet capture environment is perfect, and you are ready to do a great job. When you find that a certain sound apk uses SSLPinning, and everyone is confident enough to install frida through SSLPinning and xposed's justtrustme on your phone When I opened the apk again, I found that a certain sound apk used a non-system ssl library.