In rust with some C code, ok. How is the DER format parsed for example ? Regarding crypto operations, I know as of now for rust projects assembly is a must to

In rust with some C code, ok. How is the DER format parsed for example ? Regarding crypto operations, I know as of now for rust projects assembly is a must to have constant time guarantees. Maybe there could be a way with intrinsics and a constant-time marker, similar to unsafe, to use pure rust. In the meantime I think there still is too much C code. It’s a great step in the good direction by the way.