Difference between revisions of "Cmep Key Ring Base"
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| − | + | Physical address: <code>0xE0058000 + 0x20 * slot</code>. | |
| − | === | + | Flags: See [[F00D_Keyring_Regs#0xE003002C:_KeyringQueryFlagsResponse|here]] |
| + | |||
| + | === Keyring information === | ||
{| class="wikitable" | {| class="wikitable" | ||
Revision as of 07:26, 27 February 2022
Physical address: 0xE0058000 + 0x20 * slot.
Flags: See here
Keyring information
| Slot | Initial flags | Flags after kernel boot | Per Console | Set By | Description |
|---|---|---|---|---|---|
| 0 | 0x04420001 | 0x04420003 | N | Many Secure Modules. | General common keyring for crypto operation. |
| 1 | 0x04420001 | 0x04420001 | ? | ? | ? |
| 2-7 | 0x04420001 | 0x00400001 | ? | ? | ? |
| 8 | 0x049F0001 | 0x00810003 | Y | first_loader | SLSK personalization key (encrypt). Derived from keyrings 0x206 or 0x207. |
| 9 | 0x049F0001 | 0x00800001 | ? | first_loader | SLSK personalization key (decrypt). Derived from keyrings 0x206 or 0x207. |
| 0xA-0xF | 0x049F0001 | 0x00800003 | N | first_loader | 6 SLSK metadata decryption keys. Derived from keyrings 0x208-0x20D. |
| 0x10 | 0x05020001 | 0x05020001 | ? | ? | Supports decryption only. |
| 0x11-0x1F | 0x05020001 | 0x01000001 | ? | ? | ? |
| 0x20 | 0x061F0001 | 0x02000003 | ? | first_loader | SLSK HMAC-SHA256 Key. Derived from keyring 0x344. |
| 0x21-0x24 | 0x061F0001 | 0x061F0001 | ? | ? | Supports encryption and decryption. |
| 0x25-0x2F | 0x061F0001 | 0x02000001 | ? | ? | ? |
| 0x30-0x34 | 0x041F0001 | 0x041F0001 | ? | ? | ? |
| 0x35-0x7F | 0x041F0001 | 0x00000001 | ? | ? | ? |
| 0x80-0xFF | 0x00000000 | 0x00000000 | ? | N/A | Not used. |
| 0x100 | 0x041F0001 | 0x041F0001 | ? | ? | ? |
| 0x101-0x17F | 0x041F0001 | 0x00000001 | ? | ? | ? |
| 0x180-0x1FF | 0x00000000 | 0x00000000 | ? | N/A | Not used. |
| 0x200-0x203 | 0x00020003 | 0x00000003 | ? | ? | ? |
| 0x204 | 0x006F0003 | 0x006F0003 | Y | Bigmac | AES-256 master key for IdStorage Certificates AES-128-ECB keys derivation. Used by KIRK commands 0x10, 0x12, 0x17 and 0x19. |
| 0x205 | 0x006F0003 | 0x006F0003 | Y | Bigmac | ? |
| 0x206 | 0x00AF0003 | 0x00A00003 | ? | Bigmac | Master key used to derive key used to decrypt personalized layer over SLSK. Should be per-console. |
| 0x207 | 0x00AF0003 | 0x00A00003 | ? | Bigmac | Master key used instead of keyring 0x206 when first_loader secret debug mode is set. (Possibly non-per-console?) |
| 0x208-0x20D | 0x00AF0003 | 0x00A00003 | N | Bigmac | 6 master keys used to derive AES-128-CBC Key to decrypt SLSK metadata. Which one is used depends on encryption key revision in SLSK header. |
| 0x20E-0x20F | 0xXXXX0003 | 0x00100003 | ? | Bigmac | Maybe per-console eMMC crypto keys. Protected by second_loader. |
| 0x210-0x211 | 0x001F0003 | 0x00000003 | ? | ? | ? |
| 0x212 | 0x001F0003 | 0x001F0003 | Y | Bigmac | AES-256-CMAC key used by KIRK commands 0x12 and 0x19. |
| 0x213 | 0x001F0003 | 0x001F0003 | Y | Bigmac | AES-256-CBC key used to derive (by seed encryption) SMI keys in second_loader, which are used for minimum firmware version decryption. |
| 0x214 | 0x001F0003 | 0x00000003 | ? | ? | AES-256-CBC key used to derive (by seed encryption) keyrings 0x514 and 0x515 in second_loader. IVs and seeds hardcoded in second_loader. |
| 0x215 | 0x001F0003 | 0x00000003 | ? | ? | ? |
| 0x216 | 0x001F0003 | 0x001F0003 | Y | Bigmac | AES-256-CBC key used to derive (by seed encryption) keyrings 0x502-0x504 in second_loader. IV hardcoded in second_loader. If SMI minimum FW < 0.996, this key is not used and keyrings 0x502-0x504 are set with hardcoded values from second_loader. |
| 0x217 | 0x001F0003 | 0x00000003 | ? | ? | ? |
| 0x218-0x2FF | 0x00000000 | 0x00000000 | X | N/A | Not used. |
| 0x300-0x33F | 0x00020003 | 0x00000003 | ? | ? | ? |
| 0x340 | 0x012F0003 | 0x012F0003 | ? | ? | Used to decrypt keys into the 0x10 keyring. |
| 0x341-0x343 | 0x012F0003 | 0x01200003 | ? | ? | ? |
| 0x344 | 0x022F0003 | 0x02200003 | ? | ? | Master key used to derive the 0x20 keyring in first_loader. |
| 0x345-0x348 | 0x022F0003 | 0x022F0003 | ? | ? | Used to decrypt keys into one of the 0x21-0x24 keyrings. |
| 0x349-0x353 | 0x022F0003 | 0x02200003 | ? | ? | ? |
| 0x354-0x3FF | 0x001F0003 | 0x00000003 | ? | ? | ? |
| 0x400-0x47F | 0x18000001 | 0x00000001 | ? | ? | ? |
| 0x480-0x4FF | 0x00000000 | 0x00000000 | X | N/A | Not used. |
| 0x500 | 0x18000001 | 0x18000001 | ? | ? | ? |
| 0x501 | 0x18000001? | 0x10000007 | N | first_loader | Used by first_loader to figure out whether to load from eMMC or ARM comms after reset. Also SLSK AES Key revision on offset>0x1C-byte>bit:0xF0000000 |
| 0x502 | 0x18000001 | 0x18000003 | Y | second_loader | AES XTS Tweak for Ernie SNVS sectors. |
| 0x503 | 0x18000001 | 0x18000003 | Y | second_loader | AES XTS Decryption Key for Ernie SNVS sectors. |
| 0x504 | 0x18000001 | 0x18000003 | Y | second_loader | AES-128-CMAC Key for Ernie SNVS sectors. |
| 0x505 | 0x18000001 | 0x00000001 | ? | ? | ? |
| 0x506 | 0x18000001 | 0x18000003 | N | second_loader | QAF Token AES-256-CBC and AES-256-CMAC key. Hardcoded in second_loader. Used with IV = keyring 0x507. |
| 0x507 | 0x18000001 | 0x18000003 | N | second_loader | QAF Token AES-256-CBC IV. Hardcoded in second_loader. |
| 0x508 | 0x18000001 | 0x18000003 | Y | second_loader | Ernie version. Comes from Ernie Code Flash memory (Ernie command 1). 4 bytes. If lower (older) than 0x00090903, old Ernie protocols (unencrypted SNVS packets and maybe different SNVS keys) are used. |
| 0x509 | 0x18000001 | 0x18000003 | Y | second_loader | ConsoleId of unit. Comes from IdStorage (eMMC). |
| 0x50A | 0x18000001? | 0x18000007 | Y | second_loader | QA flags. 0x10 bytes. Comes from Ernie NVS (Ernie command 0x1082). |
| 0x50B | 0x18000001 | 0x18000003 | Y | second_loader | Mgmt Data. 8 bytes. Comes from Ernie SNVS block 0 (Ernie command 0xD2). |
| 0x50C | 0x18000001 | 0x18000003 | N | second_loader | Second_Loader#Boot_type_indicator_for_slsk |
| 0x50D | 0x18000001 | 0x18000003 | Y | second_loader | OpenPSID of unit. Comes from IdStorage (eMMC). |
| 0x50E | 0x18000001 | 1.69: 0x18000003
3.60: 0x10000003 |
Y | second_loader | Current firmware version. Comes from Ernie SNVS (Ernie command 0xD0). |
| 0x50F | 0x18000001 | 0x18000003 | Y | second_loader | Minimum firmware version. Comes from IdStorage SMI leaf (eMMC). 4 bytes. |
| 0x510 | 0x18000001 | 0x18000003 | Y | second_loader | DIP Switches. 0x20 bytes. Comes from CP and Ernie VS (Ernie command 0x90 offset 0xE0). |
| 0x511 | 0x18000001 | 0x18000003 | N (random) | second_loader | Ernie communication session key. Unique per boot. It is generated by a handshake with Ernie through Ernie command 0xD0. AES-128-ECB key used to enc/dec the content of Ernie secure packets. If (baryonVersion < 0x90903 && (ernieDLVersion & 0xffffff) < 0x3600) it is zeroed by second_loader. Part of SKSO data. Used by SK command 0xF01. |
| 0x512 | 0x18000001? | 0x18000007 | N (counter) | second_loader | Ernie communication ticket count. Used as a challenge at the start of each secure Ernie encrypted communication, for example for SNVS read/write. On each boot it is set to a random value by second_loader. Incremented by 1 after each Ernie secure commmand usage. Part of SKSO data. Used by SK command 0xF01. |
| 0x513 | 0x18000001 | 0x18000003 | Y | second_loader | DRAM size. Set to 0x20000000 by default, 0x40000000 on DevKit in DevKit Memory Size mode. Determined by DIP Switches (CP). |
| 0x514 | 0x18000001 | 0x18000003 | see keyring 0x214 | second_loader | SKSO AES-256-CMAC key. Protected on FW 1.05. Data size 0x90 bytes. Used to verify SKSO. Used by SK command 0xF01. |
| 0x515 | 0x18000001 | 0x18000003 | see keyring 0x214 | second_loader | SKSO AES-128-CBC key. Protected on FW 1.05. Data size 0xA0 bytes. Hardcoded IV in second_loader and second_kernel. Used to encrypt/decrypt SKSO (the content written into keyrings 0x511, 0x512, 0x517 and 0x519). Used by SK command 0xF01. |
| 0x516 | 0x18000001? | 0x18000007 | N | second_loader | Some status. Set to 0 at the start of second_loader main(). Checked for 0 before initiating communication with Ernie. 4 bytes. Used by SK command 0xF01: writes (u32)1 here after having exported the SKSO to paddr 0x4001FF00. |
| 0x517 | 0x18000001 | 0x18000003 | Y | second_loader, act_sm | Kit Activation status. 4 bytes. Part of SKSO data. When initializing the keyrings, this is zeroed if keyring ?0x50D? has bit8 clear (on FW 1.692). Used by SK command 0xF01. |
| 0x518 | 0x18000001 | 0x18000003 | Y | second_loader | Another current FW version (3.60+?). Comes from SNVS (Ernie command 0xD0). |
| 0x519 | 0x18000001 | 0x18000003 | Y? | second_loader | Part of SKSO data. Used by SK command 0xF01. Not used (maybe zeroed) on old FWs. Used on FW 3.60. |
| 0x51A | 0x18000001 | 0x18000003 | N (random) | second_loader | Coredump Encrypted Session Key (FW 2.12+). Randomized 0x20 byte key. Unique for every boot/reboot/resume. Used for Kernel coredump encryption. See KBL Param and SCECAF#Kernel_Coredump_Encrypted_ELF. Used by SK command 0x1001. |
| 0x51B | 0x18000001 | 0x18000003 | Y | second_loader | Hardware Info. 4 bytes. Comes from Ernie Code Flash memory (Ernie command 5). |
| 0x51C-0x51D | 0x18000001 | 0x00000001 | ? | ? | Used in update_service_sm for NVS. 4 bytes for each keyring. |
| 0x51E-0x521 | 0x18000001 | 0x00000001 | ? | ? | Used in update_service_sm for NVS. 4 bytes for each keyring. |
| 0x522-0x57F | 0x18000001 | 0x00000001 | ? | ? | ? |
| 0x580-0x5FF | 0x00000000 | 0x00000000 | X | N/A | Not used. |
| 0x600 | 0x10000003 | 0x10000003 | Y | Bigmac | VisibleId of unit. |
| 0x601 | 0x10000003 | 0x10000003 | Y | ? | ? |
| 0x602 | 0x10000003 | 0x10000003 | Y | Bigmac | 256 bits copied to 0xE0020100 by second_loader. |
| 0x603 | 0x10000003 | 0x10000003 | N | Bigmac | SLSK RSA public key has flags |
| 0x604 | 0x10000003 | 0x10000003 | N | ? | ? |
| 0x605-0x607 | 0x10000003 | 0x00000003 | ? | ? | ? |
| 0x608-0x6FF | 0x00000000 | 0x00000000 | X | N/A | Not used. |
| 0x700-0x7FF | 0x10000003 | 0x00000003 | N | Bigmac | 16 RSA public keys for SLSK files. Which key is used depends on public key revision specified in SLSK header. |