NRR: Difference between revisions
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The Switch uses the NRR file format to verify [[NRO]] at load time. These files contain hashes of each NRO that is allowed to be loaded by the program. An NRO's SHA-256 hash must match any of the hashes in the hash table. NRRs are signed with RSASSA-PSS-2048/SHA-256. | The Switch uses the NRR file format to verify [[NRO]] at load time. These files contain hashes of each NRO that is allowed to be loaded by the program. An NRO's SHA-256 hash must match any of the hashes in the hash table. NRRs are signed with RSASSA-PSS-2048/SHA-256. | ||
| Line 13: | Line 12: | ||
|- | |- | ||
| 0x4 | | 0x4 | ||
| | | 0x4 | ||
| | | [9.0.0+] CertificationSignatureKeyGeneration (0 or 1) | ||
|- | |- | ||
| 0x8 | | 0x8 | ||
| 0x8 | | 0x8 | ||
| | | Reserved | ||
|- | |- | ||
| 0x10 | | 0x10 | ||
| | | 0x220 | ||
| | | [[#Certification|Certification]] | ||
| | |||
|- | |- | ||
| 0x230 | | 0x230 | ||
| 0x100 | | 0x100 | ||
| | | Signature (verifiable with the certification key, over the rest of the file) | ||
|- | |- | ||
| 0x330 | | 0x330 | ||
| 0x8 | | 0x8 | ||
| | | ApplicationId | ||
|- | |- | ||
| 0x338 | | 0x338 | ||
| 0x4 | | 0x4 | ||
| | | Size | ||
|- | |- | ||
| 0x33C | | 0x33C | ||
| | | 0x1 | ||
| | | NrrKind (0 = User, 1 = JitPlugin) | ||
|- | |||
| 0x33D | |||
| 0x3 | |||
| Reserved | |||
|- | |- | ||
| 0x340 | | 0x340 | ||
| 0x4 | | 0x4 | ||
| | | HashOffset (always 0x350) | ||
|- | |- | ||
| 0x344 | | 0x344 | ||
| 0x4 | | 0x4 | ||
| | | NumHash | ||
|- | |- | ||
| 0x348 | | 0x348 | ||
| Line 65: | Line 56: | ||
|- | |- | ||
| 0x350 | | 0x350 | ||
| 0x20 * | | 0x20 * NumHash | ||
| | | NroHashList (SHA-256) | ||
|} | |||
= Certification = | |||
{| class="wikitable" border="1" | |||
|- | |||
! Offset | |||
! Size | |||
! Description | |||
|- | |||
| 0x0 | |||
| 0x8 | |||
| ApplicationIdMask | |||
|- | |||
| 0x8 | |||
| 0x8 | |||
| ApplicationIdPattern | |||
|- | |||
| 0x10 | |||
| 0x10 | |||
| Reserved | |||
|- | |||
| 0x20 | |||
| 0x100 | |||
| PublicKey (modulus for verifying the NRR signature) | |||
|- | |||
| 0x120 | |||
| 0x100 | |||
| Signature (over the above contents) | |||
|} | |} | ||
Revision as of 20:39, 22 February 2020
The Switch uses the NRR file format to verify NRO at load time. These files contain hashes of each NRO that is allowed to be loaded by the program. An NRO's SHA-256 hash must match any of the hashes in the hash table. NRRs are signed with RSASSA-PSS-2048/SHA-256.
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Magic "NRR0" |
| 0x4 | 0x4 | [9.0.0+] CertificationSignatureKeyGeneration (0 or 1) |
| 0x8 | 0x8 | Reserved |
| 0x10 | 0x220 | Certification |
| 0x230 | 0x100 | Signature (verifiable with the certification key, over the rest of the file) |
| 0x330 | 0x8 | ApplicationId |
| 0x338 | 0x4 | Size |
| 0x33C | 0x1 | NrrKind (0 = User, 1 = JitPlugin) |
| 0x33D | 0x3 | Reserved |
| 0x340 | 0x4 | HashOffset (always 0x350) |
| 0x344 | 0x4 | NumHash |
| 0x348 | 0x8 | Reserved |
| 0x350 | 0x20 * NumHash | NroHashList (SHA-256) |
Certification
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x8 | ApplicationIdMask |
| 0x8 | 0x8 | ApplicationIdPattern |
| 0x10 | 0x10 | Reserved |
| 0x20 | 0x100 | PublicKey (modulus for verifying the NRR signature) |
| 0x120 | 0x100 | Signature (over the above contents) |