seeddb - SeedDB management

The seeddb module handles seeds used for title encryption. This applies to digital games released after early 2015. Seeds were used to enable pre-purchasing and downloading titles before release without providing access to the actual contents before the release date.

When a CryptoEngine object is initialized, by default it will attempt to load a seeddb.bin using the paths defined in seeddb_paths.

File format

The SeedDB file consists of a seed count, then each entry has a Title ID and its associated seed.

seeddb.bin file format

Offset	Size	Data
0x0	0x4	Entry count in little endian (C)
0x4	0xC	Padding
0x10	(0x20 * C)	Entries

Entry

Offset	Size	Data
0x0	0x8	Title ID in little endian
0x8	0x10	Seed
0x18	0x8	Padding

Functions

Data

pyctr.crypto.seeddb.seeddb_paths: dict[int, bytes]

The list of paths that load_seeddb() will try to load from automatically. By default this is every path in pyctr.util.config_dirs with seeddb.bin. If the environment variable SEEDDB_PATH is set, its value is put at the beginning of the list.