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→Content Header
The first 0x10-bytes are all-zero except the first byte which is usually 0x80. It's unknown what the first 0x10-bytes are used for.
The first 0x10-bytes are all-zero except the first byte which is usually 0x80. It's unknown what the first 0x10-bytes are used for.
The 16-bit value at 0x10 tells how many payload contents follow after this the content header. For example there can be a downloaded file for a game followed by a message for the news system module.
The hash at offset 0x12 hashes the 0x12-byte data at offset 0x0 followed by a zero u16. The RSA signature is signed by Nintendo. Following this header is the actual content payload, which is written to a cleartext file under the [[extdata]] /boss directory.
The hash at offset 0x12 hashes the 0x12-byte data at offset 0x0 followed by a zero u16. The RSA signature is signed by Nintendo. Following this header is the actual content payload, which is written to a cleartext file under the [[extdata]] /boss directory.