Difference between revisions of "SPL services"

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(better names)
Line 10: Line 10:
 
! Cmd || Name
 
! Cmd || Name
 
|-
 
|-
−
| 0 || [[#GetRandomBytes]]
+
| 0 || [[#GenerateRandomBytes]]
 
|}
 
|}
  
−
== GetRandomBytes ==
+
== GenerateRandomBytes ==
 
Takes a type-6 buffer and fills it with random data from [[SMC#GetRandomBytes|GetRandomBytes SMC]]. Same command for "spl:" and "csrng" services.
 
Takes a type-6 buffer and fills it with random data from [[SMC#GetRandomBytes|GetRandomBytes SMC]]. Same command for "spl:" and "csrng" services.
  
 
= spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu =
 
= spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu =
−
These are "nn::spl::detail::IGeneralInterface", "nn::spl::detail::ICryptoInterface", "nn::spl::detail::IFsInterface", "nn::spl::detail::ISslInterface", "nn::spl::detail::IEsInterface" and "nn::spl::detail::IManuInterface"(?).
+
These are "nn::spl::detail::IGeneralInterface", "nn::spl::detail::ICryptoInterface", "nn::spl::detail::IFsInterface", "nn::spl::detail::ISslInterface", "nn::spl::detail::IEsInterface" and "nn::spl::detail::IManuInterface".
  
−
[2.0.0+] Where previously only one AES engine was utilized, there is now support for 4 of them.
+
[2.0.0+] Where previously only one AES keyslot was used, there is now support for 4 of them.
  
−
[2.0.0+] When the session closes, all AES engines that were locked are automatically unlocked.
+
[2.0.0+] When the session closes, all allocated AES keyslots are automatically freed.
  
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 29: Line 29:
 
| 0 || [[#GetConfig]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
| 0 || [[#GetConfig]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 1 || [[#UserExpMod]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
+
| 1 || [[#ExpMod]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
|-
 
|-
 
| 2 || [[#GenerateAesKek]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
| 2 || [[#GenerateAesKek]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
Line 39: Line 39:
 
| 5 || [[#SetConfig]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
| 5 || [[#SetConfig]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
|-
 
|-
−
| 7 || [[#GetRandomBytes]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
+
| 7 || [[#GenerateRandomBytes]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 9 || [[#LoadSecureExpModKey]] || spl:fs
+
| 9 || [[#ImportLotusKey]] || spl:fs
 
|-
 
|-
−
| 10 || [[#SecureExpMod]] || spl:fs
+
| 10 || [[#DecryptLotusMessage]] || spl:fs
 
|-
 
|-
 
| 11 || [[#IsDevelopment]] || spl:, spl:mig, spl:fs, spl:ssl spl:es, spl:manu
 
| 11 || [[#IsDevelopment]] || spl:, spl:mig, spl:fs, spl:ssl spl:es, spl:manu
Line 53: Line 53:
 
| 14 || [[#DecryptAesKey]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
| 14 || [[#DecryptAesKey]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 15 || [[#DecryptAesCtr]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
+
| 15 || [[#CryptAesCtr]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
 
| 16 || [[#ComputeCmac]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
| 16 || [[#ComputeCmac]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu  
 
|-
 
|-
−
| 17 || [[#LoadRsaOaepKey]] || spl:es
+
| 17 || [[#ImportEsKey]] || spl:es
 
|-
 
|-
−
| 18 || [[#UnwrapRsaOaepWrappedTitleKey]] || spl:es
+
| 18 || [[#UnwrapTitleKey]] || spl:es
 
|-
 
|-
 
| 19 || [[#LoadTitleKey]] || spl:fs
 
| 19 || [[#LoadTitleKey]] || spl:fs
 
|-
 
|-
−
| 20 || [2.0.0+] [[#UnwrapAesWrappedTitleKey ]] || spl:es
+
| 20 || [2.0.0+] [[#UnwrapCommonTitleKey]] || spl:es
 
|-
 
|-
−
| 21 || [2.0.0+] [[#LockAesEngine]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
+
| 21 || [2.0.0+] [[#AllocateAesKeyslot]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 22 || [2.0.0+] [[#UnlockAesEngine]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
+
| 22 || [2.0.0+] [[#FreeAesKeyslot]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 23 || [2.0.0+] [[#GetSplWaitEvent]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
+
| 23 || [2.0.0+] [[#GetAesKeyslotAvailableEvent]] || spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
 
| 24 || [3.0.0+] [[#SetBootReason]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
| 24 || [3.0.0+] [[#SetBootReason]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
Line 75: Line 75:
 
| 25 || [3.0.0+] [[#GetBootReason]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
| 25 || [3.0.0+] [[#GetBootReason]] || spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
 
|-
 
|-
−
| 26 || [5.0.0+] ImportSslRsaKey || spl:ssl
+
| 26 || [5.0.0+] ImportSslKey || spl:ssl
 
|-
 
|-
−
| 27 || [5.0.0+] SecureExpModWithSslKey || spl:ssl
+
| 27 || [5.0.0+] SslExpMod || spl:ssl
 
|-
 
|-
−
| 28 || [5.0.0+] ImportEsRsaKey || spl:es
+
| 28 || [5.0.0+] ImportDrmKey || spl:es
 
|-
 
|-
−
| 29 || [5.0.0+] SecureExpModWithEsKey || spl:es
+
| 29 || [5.0.0+] DrmExpMod || spl:es
 
|-
 
|-
−
| 30 || [5.0.0+] EncryptManuRsaKeyForImport || spl:manu
+
| 30 || [5.0.0+] ReEncryptRsaPrivateKey || spl:manu
 
|-
 
|-
 
| 31 || [5.0.0+] GetPackage2Hash || spl:fs
 
| 31 || [5.0.0+] GetPackage2Hash || spl:fs
 
|-
 
|-
−
| 31 || [6.0.0+] UnwrapRsaWrappedElicenseKey || spl:es
+
| 31 || [6.0.0+] UnwrapElicenseKey || spl:es
 
|-
 
|-
−
| 32 || [6.0.0+] [[#LoadTitleKey]] || spl:es
+
| 32 || [6.0.0+] [[#LoadElicenseKey]] || spl:es
 
|}
 
|}
  
Line 97: Line 97:
 
Takes a u32 ('''ConfigItem'''), and returns one or more u64s ('''ConfigVal''').
 
Takes a u32 ('''ConfigItem'''), and returns one or more u64s ('''ConfigVal''').
  
−
== UserExpMod ==
+
== ExpMod ==
 
Wrapper for [[SMC#ExpMod|ExpMod SMC]].
 
Wrapper for [[SMC#ExpMod|ExpMod SMC]].
  
Line 118: Line 118:
 
Sets the specified '''keyslot''' with a key generated from '''key_x''' and '''key_y'''.
 
Sets the specified '''keyslot''' with a key generated from '''key_x''' and '''key_y'''.
  
−
[2.0.0+] Now verifies that the engine in use (0..3) is locked/owned by the current spl session, otherwise errors with 0xD21A. Previously engine was hardcoded to 0.
+
[2.0.0+] Now verifies that the keyslot in use (0..3) is allocated by the current spl session, otherwise errors with 0xD21A. Previously, keyslot was hardcoded to 0.
  
 
== GenerateAesKey ==
 
== GenerateAesKey ==
Line 125: Line 125:
 
Generates a new key by decrypting (AES-ECB) '''enc_key''' with a key generated from the supplied '''key_x''' and a fixed '''key_y''' set with [[SMC#LoadAesKey|LoadAesKey SMC]].
 
Generates a new key by decrypting (AES-ECB) '''enc_key''' with a key generated from the supplied '''key_x''' and a fixed '''key_y''' set with [[SMC#LoadAesKey|LoadAesKey SMC]].
  
−
[2.0.0+] Previously, it always used engine 0. Now it tries to allocate an engine to be used and returns 0xD01A if they're all busy. When the command is done, the engine is released.
+
[2.0.0+] Previously, it always used keyslot 0. Now it tries to allocate a keyslot to be used and returns 0xD01A if they're all busy. When the command is done, the keyslot is released.
  
 
== SetConfig ==
 
== SetConfig ==
Line 136: Line 136:
 
! ConfigItem || Name
 
! ConfigItem || Name
 
|-
 
|-
−
| 13 || BatteryProfile
+
| 13 || IsChargerHiZModeEnabled
 
|}
 
|}
  
 
Any other '''ConfigItem''', besides 13, can't be set.
 
Any other '''ConfigItem''', besides 13, can't be set.
  
−
== LoadSecureExpModKey ==
+
== ImportLotusKey ==
 
Wrapper for [[SMC#LoadSecureExpModKey|LoadSecureExpModKey SMC]].
 
Wrapper for [[SMC#LoadSecureExpModKey|LoadSecureExpModKey SMC]].
  
Line 151: Line 151:
 
[5.0.0+] This now calls [[SMC#EncryptRsaKeyForImport|EncryptRsaKeyForImport SMC]] instead.
 
[5.0.0+] This now calls [[SMC#EncryptRsaKeyForImport|EncryptRsaKeyForImport SMC]] instead.
  
−
== SecureExpMod ==
+
== DecryptLotusMessage ==
−
Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''param0_in_buf''').
+
Takes 3 type-9 (X descriptor) buffers ('''data_in_buf''', '''mod_in_buf''' and '''label_hash_in_buf''').
  
−
Uses [[SMC#SecureExpMod|SecureExpMod SMC]] to decrypt '''data_in_buf''' using the private key imported with [[#LoadSecureExpModKey]] and the supplied '''mod_in_buf''' and '''param0_in_buf'''.
+
Uses [[SMC#SecureExpMod|SecureExpMod SMC]] to decrypt '''data_in_buf''' using the private key imported with [[#LoadSecureExpModKey]] and the supplied '''mod_in_buf''' and '''label_hash_in_buf'''.
  
 
Generates and returns a 16-byte sealed titlekey.
 
Generates and returns a 16-byte sealed titlekey.
Line 191: Line 191:
 
[2.0.0+] Introduced same engine allocation code as for [[#GenerateAesKey]].
 
[2.0.0+] Introduced same engine allocation code as for [[#GenerateAesKey]].
  
−
== DecryptAesCtr ==
+
== CryptAesCtr ==
 
Takes a type-0x46 (B descriptor) buffer ('''data_out_buf'''), a u32 ('''keyslot'''), a type-0x45 (A descriptor) buffer ('''data_in_buf''') and a 16-byte CTR ('''aes_ctr''').
 
Takes a type-0x46 (B descriptor) buffer ('''data_out_buf'''), a u32 ('''keyslot'''), a type-0x45 (A descriptor) buffer ('''data_in_buf''') and a 16-byte CTR ('''aes_ctr''').
  
 
Uses [[SMC#CryptAes|CryptAes SMC]] to decrypt '''data_in_buf''' into '''data_out_buf''', using the key set in the specified '''keyslot'''.
 
Uses [[SMC#CryptAes|CryptAes SMC]] to decrypt '''data_in_buf''' into '''data_out_buf''', using the key set in the specified '''keyslot'''.
  
−
[2.0.0+] Verifies the engine is locked by current session.
+
[2.0.0+] Verifies the keyslot was allocated by current session.
  
 
== ComputeCmac ==
 
== ComputeCmac ==
Line 207: Line 207:
 
[2.0.0+] Verifies the engine is locked by current session.
 
[2.0.0+] Verifies the engine is locked by current session.
  
−
== LoadRsaOaepKey ==
+
== ImportEsKey ==
 
Wrapper for [[SMC#LoadRsaOaepKey|LoadRsaOaepKey SMC]].
 
Wrapper for [[SMC#LoadRsaOaepKey|LoadRsaOaepKey SMC]].
  
Line 214: Line 214:
 
Decrypts enc_privk_in_buf with a key generated from key_x and key_y and imports it for later usage.
 
Decrypts enc_privk_in_buf with a key generated from key_x and key_y and imports it for later usage.
  
−
== UnwrapRsaOaepWrappedTitleKey ==
+
== UnwrapTitleKey ==
 
Wrapper for [[SMC#UnwrapRsaOaepWrappedTitleKey|UnwrapRsaOaepWrappedTitleKey SMC]].
 
Wrapper for [[SMC#UnwrapRsaOaepWrappedTitleKey|UnwrapRsaOaepWrappedTitleKey SMC]].
  
Line 232: Line 232:
 
[2.0.0+] Verifies the engine is locked by current session.
 
[2.0.0+] Verifies the engine is locked by current session.
  
−
== UnwrapAesWrappedTitleKey ==
+
== UnwrapCommonTitleKey ==
 
Wrapper for [[SMC#UnwrapAesWrappedTitleKey|UnwrapAesWrappedTitleKey SMC]].
 
Wrapper for [[SMC#UnwrapAesWrappedTitleKey|UnwrapAesWrappedTitleKey SMC]].
  
Line 239: Line 239:
 
Returns a sealed titlekey.
 
Returns a sealed titlekey.
  
−
== LockAesEngine ==
+
== AllocateAesKeyslot ==
−
Returns the id of the engine that was locked, or 0xD01A if all engines are busy. You need to lock an engine before using AES functions.
+
Returns an allocated keyslot, or 0xD01A if all keyslots are taken. You need to allocate a keyslot before using AES functions.
  
−
== UnlockAesEngine ==
+
== FreeAesKeyslot ==
−
Takes a single u32 and unlocks the engine with that id. It must be owned by current session otherwise 0xD21A will be returned.
+
Takes a single u32 and frees the keyslot. The keyslot must have been allocated by current session otherwise 0xD21A will be returned.
  
−
== GetSplWaitEvent ==
+
== GetAesKeyslotAvailableEvent ==
−
Returns an event handle for synchronizing with the locked AES engine.
+
Returns an event handle for synchronizing with the AES keyslots.
  
 
== SetBootReason ==
 
== SetBootReason ==
−
Sets a static dword in spl .bss to the user input u32.
+
Sets a static dword in spl .bss to the input u32 '''BootReason'''.
  
 
[4.0.0+] returns 0xD41A if a value has been previously set without being [[#GetBootReason|gotten]].
 
[4.0.0+] returns 0xD41A if a value has been previously set without being [[#GetBootReason|gotten]].
  
 
== GetBootReason ==
 
== GetBootReason ==
−
Returns the static dword in spl .bss that can be set via [[#SetBootReason]].
+
Returns the static dword '''BootReason''' in spl .bss that can be set via [[#SetBootReason]].
  
 
[4.0.0+] returns 0xD61A if a value has not previously been set, and unsets the value after getting it.
 
[4.0.0+] returns 0xD61A if a value has not previously been set, and unsets the value after getting it.
 +
 +
== LoadElicenseKey ==
 +
Same as [[#LoadTitleKey|LoadTitleKey]].
  
 
[[Category:Services]]
 
[[Category:Services]]

Revision as of 16:48, 27 April 2019

SPL ("Secure Platform services") is responsible for handling all cryptographic operations within the system and relaying them to the Secure Monitor when necessary.

During [1.0.0-3.0.2], the only existing services were "csrng" and "spl:". However, in [4.0.0+] the "spl:" service was refactored and split into new services with different permission levels. Each service exposes the IPC command list differently in order to prevent cryptographic operations to take place in the wrong context.

csrng

This is "nn::spl::detail::IRandomInterface".

Cmd Name
0 #GenerateRandomBytes

GenerateRandomBytes

Takes a type-6 buffer and fills it with random data from GetRandomBytes SMC. Same command for "spl:" and "csrng" services.

spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu

These are "nn::spl::detail::IGeneralInterface", "nn::spl::detail::ICryptoInterface", "nn::spl::detail::IFsInterface", "nn::spl::detail::ISslInterface", "nn::spl::detail::IEsInterface" and "nn::spl::detail::IManuInterface".

[2.0.0+] Where previously only one AES keyslot was used, there is now support for 4 of them.

[2.0.0+] When the session closes, all allocated AES keyslots are automatically freed.

Cmd Name Permissions
0 #GetConfig spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
1 #ExpMod spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
2 #GenerateAesKek spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
3 #LoadAesKey spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
4 #GenerateAesKey spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
5 #SetConfig spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
7 #GenerateRandomBytes spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
9 #ImportLotusKey spl:fs
10 #DecryptLotusMessage spl:fs
11 #IsDevelopment spl:, spl:mig, spl:fs, spl:ssl spl:es, spl:manu
12 #GenerateSpecificAesKey spl:fs
13 #DecryptRsaPrivateKey spl:ssl, spl:es, spl:manu
14 #DecryptAesKey spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
15 #CryptAesCtr spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
16 #ComputeCmac spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
17 #ImportEsKey spl:es
18 #UnwrapTitleKey spl:es
19 #LoadTitleKey spl:fs
20 [2.0.0+] #UnwrapCommonTitleKey spl:es
21 [2.0.0+] #AllocateAesKeyslot spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
22 [2.0.0+] #FreeAesKeyslot spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
23 [2.0.0+] #GetAesKeyslotAvailableEvent spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
24 [3.0.0+] #SetBootReason spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
25 [3.0.0+] #GetBootReason spl:, spl:mig, spl:fs, spl:ssl, spl:es, spl:manu
26 [5.0.0+] ImportSslKey spl:ssl
27 [5.0.0+] SslExpMod spl:ssl
28 [5.0.0+] ImportDrmKey spl:es
29 [5.0.0+] DrmExpMod spl:es
30 [5.0.0+] ReEncryptRsaPrivateKey spl:manu
31 [5.0.0+] GetPackage2Hash spl:fs
31 [6.0.0+] UnwrapElicenseKey spl:es
32 [6.0.0+] #LoadElicenseKey spl:es

GetConfig

Wrapper for GetConfig SMC.

Takes a u32 (ConfigItem), and returns one or more u64s (ConfigVal).

ExpMod

Wrapper for ExpMod SMC.

Takes one type-10 (C descriptor) buffer (data_out_buf) and 3 type-9 (X descriptor) buffers (data_in_buf, exp_in_buf and mod_in_buf).

Performs asymmetric crypto with user supplied modulus and exponent.

GenerateAesKek

Wrapper for GenerateAesKek SMC.

Takes a 16-byte EKS (Encryption Key Source) and two words (KeyGeneration and option) as input.

Returns a scrambled sealed KEK (Key Encryption Key used as key_x).

LoadAesKey

Wrapper for LoadAesKey SMC.

Takes a u32 (keyslot) and two 16-byte keys (key_x and key_y).

Sets the specified keyslot with a key generated from key_x and key_y.

[2.0.0+] Now verifies that the keyslot in use (0..3) is allocated by the current spl session, otherwise errors with 0xD21A. Previously, keyslot was hardcoded to 0.

GenerateAesKey

Takes a 16-byte KEK (key_x) and a 16-byte encrypted key (enc_key).

Generates a new key by decrypting (AES-ECB) enc_key with a key generated from the supplied key_x and a fixed key_y set with LoadAesKey SMC.

[2.0.0+] Previously, it always used keyslot 0. Now it tries to allocate a keyslot to be used and returns 0xD01A if they're all busy. When the command is done, the keyslot is released.

SetConfig

Wrapper for SetConfig SMC.

Takes a u32 (ConfigItem) and a u64 (ConfigVal).

ConfigItem Name
13 IsChargerHiZModeEnabled

Any other ConfigItem, besides 13, can't be set.

ImportLotusKey

Wrapper for LoadSecureExpModKey SMC.

Takes one type-9 (X descriptor) buffer (enc_privk_in_buf), a 16-byte KEK (key_x), a 16-byte key (key_y) and a u32 (version). version is 0 for normal keys or 1 for extended keys.

Decrypts enc_privk_in_buf with a key generated from key_x and key_y and imports it for later usage.

[5.0.0+] This now calls EncryptRsaKeyForImport SMC instead.

DecryptLotusMessage

Takes 3 type-9 (X descriptor) buffers (data_in_buf, mod_in_buf and label_hash_in_buf).

Uses SecureExpMod SMC to decrypt data_in_buf using the private key imported with #LoadSecureExpModKey and the supplied mod_in_buf and label_hash_in_buf.

Generates and returns a 16-byte sealed titlekey.

IsDevelopment

No input params.

Uses #GetConfig internally with id=6. Returns true if output from that is 0, or if the SMC returned error 2.

Returns an u8 flag for whether the system is devunit. Output flag is 0 on retail.

GenerateSpecificAesKey

Wrapper for GenerateSpecificAesKey SMC.

Takes a 16-byte seed (key_seed) and two words (KeyGeneration and option) as input.

Returns a scrambled key (key_a).

DecryptRsaPrivateKey

Wrapper for DecryptRsaPrivateKey SMC.

Takes one type-10 (C descriptor) buffer (dec_privk_out_buf), one type-9 (X descriptor) buffer (enc_privk_in_buf), a 16-byte KEK (key_x), a 16-byte key (key_y) and a u32 (version). version is 0 for normal keys or 1 for extended keys.

Decrypts enc_privk_in_buf into dec_privk_out_buf with a key generated from key_x and key_y.

Used by SSL-sysmodule for TLS client-privk.

[5.0.0+] This now calls DecryptOrImportRsaKey SMC instead.

DecryptAesKey

Takes a 16-byte encrypted key (enc_key) and two words (KeyGeneration and option) as input.

Decrypts (AES-ECB) enc_key with a key generated from fixed key_x and key_y set with LoadAesKey SMC and returns a 16-byte decrypted key (dec_key).

[2.0.0+] Introduced same engine allocation code as for #GenerateAesKey.

CryptAesCtr

Takes a type-0x46 (B descriptor) buffer (data_out_buf), a u32 (keyslot), a type-0x45 (A descriptor) buffer (data_in_buf) and a 16-byte CTR (aes_ctr).

Uses CryptAes SMC to decrypt data_in_buf into data_out_buf, using the key set in the specified keyslot.

[2.0.0+] Verifies the keyslot was allocated by current session.

ComputeCmac

Wrapper for ComputeCmac SMC.

Takes one type-9 (X descriptor) buffer (data_in_buf) and a u32 (type?).

Returns a 16-byte CMAC calculated over data_in_buf.

[2.0.0+] Verifies the engine is locked by current session.

ImportEsKey

Wrapper for LoadRsaOaepKey SMC.

Takes one type-9 (X descriptor) buffer (enc_privk_in_buf), a 16-byte KEK (key_x), a 16-byte key (key_y) and a u32 (version). version is 0 for normal keys or 1 for extended keys.

Decrypts enc_privk_in_buf with a key generated from key_x and key_y and imports it for later usage.

UnwrapTitleKey

Wrapper for UnwrapRsaOaepWrappedTitleKey SMC.

Takes one type-10 (C descriptor) buffer (data_out_buf) and 3 type-9 (X descriptor) buffers (data_in_buf, mod_in_buf and label_hash_in_buf).

Decrypts data_in_buf into data_out_buf using the private key imported with #LoadRsaOaepKey and the supplied mod_in_buf. Afterwards, verifies RSA-OAEP encoding using label_hash_in_buf.

Returns an u32 (dec_data_size).

LoadTitleKey

Wrapper for LoadTitleKey SMC.

Takes a u32 (keyslot) and a 16-byte sealed titlekey.

Sets the specified keyslot with the titlekey.

[2.0.0+] Verifies the engine is locked by current session.

UnwrapCommonTitleKey

Wrapper for UnwrapAesWrappedTitleKey SMC.

Takes a 16-byte EKS (Encryption Key Source).

Returns a sealed titlekey.

AllocateAesKeyslot

Returns an allocated keyslot, or 0xD01A if all keyslots are taken. You need to allocate a keyslot before using AES functions.

FreeAesKeyslot

Takes a single u32 and frees the keyslot. The keyslot must have been allocated by current session otherwise 0xD21A will be returned.

GetAesKeyslotAvailableEvent

Returns an event handle for synchronizing with the AES keyslots.

SetBootReason

Sets a static dword in spl .bss to the input u32 BootReason.

[4.0.0+] returns 0xD41A if a value has been previously set without being gotten.

GetBootReason

Returns the static dword BootReason in spl .bss that can be set via #SetBootReason.

[4.0.0+] returns 0xD61A if a value has not previously been set, and unsets the value after getting it.

LoadElicenseKey

Same as LoadTitleKey.

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