SPL services
spl:
| Cmd | Name | Notes | 
|---|---|---|
| 0 | #GetConfig | wrapper for GetConfig | 
| 1 | user supplied modulus and exponent | |
| 2 | #GenerateAesKek | wrapper for KeygenAndSealX | 
| 3 | wrapper for SetKeyslotFromXY | |
| 4 | GenerateAesKey | decrypts 0x10 bytes using AES ECB, uses SetKeyslotFromXY with a fixed Y | 
| 5 | #SetConfig | wrapper for SetConfig | 
| 7 | GetRandom | uses PrngX931 | 
| 9 | wrapper for ImportParamsForFWithXY | |
| 10 | wrapper for ExpMod | |
| 11 | #IsDevUnit | uses GetConfig | 
| 12 | GenerateSpecificAesKey | wrapper for KeygenA | 
| 13 | #DecryptExpModParamsWithXY | wrapper for DecryptExpModParamsWithXY | 
| 14 | decrypts 0x10 bytes using AES ECB, uses SetKeyslotFromXY with fixed X and Y | |
| 15 | wrapper for SymmetricCrypto | |
| 16 | wrapper for CMAC | |
| 17 | wrapper for ImportParamsFor10WithXY | |
| 18 | wrapper for ExpModAndKeygenAndSealZ | |
| 19 | wrapper for SetKeyslotFromZ | |
| 20 | wrapper for KeygenAndSealZ | |
| 21 | ||
| 22 | ||
| 23 | GetSplWaitEvent | 
GetConfig
Takes an input word (ConfigItem), and returns a u64 with the config params.
| ConfigItem | Name | 
|---|---|
| 1 | DisableProgramVerification | 
| 2 | MemoryConfiguration | 
| 5 | HardwareType (0=Icosa, 1=Copper) | 
| 7 | IsRecoveryBoot | 
| 8 | DeviceId (byte7 clear). | 
| 9 | BootReason | 
| 10 | MemoryArrange | 
| 11 | AllowSkippingNrrSignatures | 
| 13 | BatteryProfile? | 
Output from this when used by NIM must match the set:cal DeviceId with byte7 cleared, otherwise NIM will panic.
RO checks id11, if set then skipping NRR rsa signatures is allowed.
GenerateAesKek
Takes 16-bytes as input and two u32s. Outputs random-looking 16-bytes.
Same input gives same output. Output changes when system is rebooted.
SetConfig
Takes two input words, a ConfigItem and the value to set.
| ConfigItem | Name | 
|---|---|
| 13 | Battery profile? | 
IsDevUnit
No input params.
Returns an u8 flag for whether the system is devunit. Output flag is 0 on retail.
DecryptExpModParamsWithXY
Last SPL cmd used by SSL-sysmodule for TLS client-privk.