Issues

[jarryxy]

Your code needs to add OpenSSL_add_all_digests () in main.c; Otherwise, EVP_get_digestbyname () will return as a NULL pointer. Causes the program to fail to run normally.
您的代码需要在main.c中添加OpenSSL _ add _ all _ digest()；否则，EVP_get_digestbyname()将作为空指针返回。导致程序无法正常运行。