Wii U Nus [work] Jun 2026

: A security certificate that verifies the authenticity of the files. 3. Popular Tools for Interacting with the NUS

| File | Purpose | |------|---------| | tmd (Title Metadata) | Lists all content files ( .app , .h3 , .cert ), hashes, sizes, and title key (encrypted). | | cert | Nintendo’s certificate chain (root + CA + title). | | tik (Ticket) | Contains title key (encrypted with console‑specific key), permissions, and signature. | | *.app | Actual data (encrypted with title key). First .app is often the main executable (RPX/RPL). | | *.h3 | Hash tree (hierarchical SHA‑256 hashes) for verifying .app integrity. | | *.tmd (additional) | For multi‑content titles, a separate TMD inside the content list. | wii u nus