Difference between revisions of "PSPXI:EncryptDecryptAes"
(2 intermediate revisions by 2 users not shown) | |||
Line 103: | Line 103: | ||
| 5 | | 5 | ||
| 0x39 | | 0x39 | ||
− | | This is used by the [[Download Play]] module. | + | | This is used by the [[Download Play]] module for calculating a 32bit checksum over the entire UDS application data-fames, stored in the DLP data-frame header. |
|- | |- | ||
| 6 | | 6 | ||
Line 115: | Line 115: | ||
| 8 | | 8 | ||
| 0x36 | | 0x36 | ||
− | | Support for this keytype was added with the NATIVE_FIRM updated with [[2.2.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7 | + | | This is used by the friends module. |
+ | |||
+ | Support for this keytype was added with the NATIVE_FIRM updated with [[2.2.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. | ||
|- | |- | ||
| 9 | | 9 | ||
| 0x39 | | 0x39 | ||
− | | Support for this keytype was added with the NATIVE_FIRM updated with [[9.3.0-21|9.3.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. Before selecting this keyslot, Process9 writes a keyY from the Process9 .(ro)data section(keydata is different for retail/dev units) to this keyslot. Once finished with crypto, Process9 restores the original keyY to this keyslot. | + | | This is used by the NFC module. |
+ | |||
+ | Support for this keytype was added with the NATIVE_FIRM updated with [[9.3.0-21|9.3.0-X]]. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. Before selecting this keyslot, Process9 writes a keyY from the Process9 .(ro)data section(keydata is different for retail/dev units) to this keyslot. Once finished with crypto, Process9 restores the original keyY to this keyslot. | ||
|- | |- | ||
| >=10 | | >=10 |
Latest revision as of 07:40, 9 April 2016
Request[edit]
Index Word | Description |
---|---|
0 | Header code [0x000401C4] |
1 | Size in bytes |
2-5 | IV / CTR |
6 | u8 Algorithm Type (0..5) |
7 | u8 Key Type (0..7) |
8 | (size<<8) | 0x4 |
9 | Source pointer |
10 | (size<<8) | 0x14 |
11 | Destination pointer |
Response[edit]
Index Word | Description |
---|---|
0 | Header code [0x00040140] |
1 | Result code |
2-5 | Output IV / CTR: this is the IV/CTR which would be used if the crypto operation were to continue. |
Algorithm Types[edit]
Type | Description |
---|---|
0 | CBC Encrypt |
1 | CBC Decrypt |
2 | CTR Encrypt |
3 | CTR Decrypt |
4 | CCM Encrypt |
5 | CCM Decrypt |
Key Types[edit]
Type | AES Engine Keyslot | Description |
---|---|---|
0 | 0x0D | Used to decrypt the SSL client cert/private-key stored in ClCertA. |
1 | 0x2D | Used to generate the UDS local-WLAN CCMP key. |
2 | 0x31 | This is used by NS for the APT AES-CCM Wrap/Unwrap commands. These two NS commands are used by the Mii Maker application for the encrypted Mii data in the Mii QR codes. |
3 | 0x38 | BOSS |
4 | 0x32 | ? |
5 | 0x39 | This is used by the Download Play module for calculating a 32bit checksum over the entire UDS application data-fames, stored in the DLP data-frame header. |
6 | 0x2E | This is used by the StreetPass CECD module to generate the CCMP key passed to nwm::CEC commands, when beginning StreetPass communications. |
7 | Invalid | |
8 | 0x36 | This is used by the friends module.
Support for this keytype was added with the NATIVE_FIRM updated with 2.2.0-X. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. |
9 | 0x39 | This is used by the NFC module.
Support for this keytype was added with the NATIVE_FIRM updated with 9.3.0-X. When the running NATIVE_FIRM doesn't support this keytype, the result is the same as using keytype7. Before selecting this keyslot, Process9 writes a keyY from the Process9 .(ro)data section(keydata is different for retail/dev units) to this keyslot. Once finished with crypto, Process9 restores the original keyY to this keyslot. |
>=10 | Invalid, same as keytype7. |
Description[edit]
This is used to encrypt/decrypt data via the AES engine. AES-CCM is not supported by this command, PSPXI:EncryptSignDecryptVerifyAesCcm must be used for AES-CCM instead.