Cmep Key Ring Base

Keyring physical address = 0xE0058000 + 0x20 * keyring_id.

Keyring flags: See upper value (16~31-bit)

Key Rings

Keyring ID	Initial IsValid	Initial flags first half	Flags first half (1.69)	Ever IsValid (1.69)	Per Console (1.69)	Set By	Description
0	N	0x0442	0x0442	Y	N	Many Secure Modules.	General common keyring for crypto operation.
1	N	0x0442	0x0442	N	?	?	?
2-7	N	0x0442	0x0040	N	?	?	?
8	N	0x049F	0x0081	Y	Y	first_loader	SLSK personalization key (encrypt). Derived from keyrings 0x206 or 0x207.
9	N	0x049F	0x0080	N	?	first_loader	SLSK personalization key (decrypt). Derived from keyrings 0x206 or 0x207.
0xA-0xF	N	0x049F	0x0080	Y	N	first_loader	6 SLSK metadata decryption keys. Derived from keyrings 0x208-0x20D.
0x10	N	0x0502	0x0502	N	?	?	Supports decryption only.
0x11-0x1F	N	0x0502	0x0100	N	?	?	?
0x20	N	0x061F	0x0200	Y	?	first_loader	SLSK HMAC-SHA256 Key. Derived from keyring 0x344.
0x21-0x24	N	0x061F	0x061F	N	?	?	Supports encryption and decryption.
0x25-0x2F	N	0x061F	0x0200	N	?	?	?
0x30-0x34	N	0x041F	0x041F	N	?	?	?
0x35-0x7F	N	0x041F	0x0000	N	?	?	?
0x80-0xFF	X	0x0000	0x0000	X	?	N/A	Not used.
0x100	N	0x041F	0x041F	N	?	?	?
0x101-0x17F	N	0x041F	0x0000	N	?	?	?
0x180-0x1FF	X	0x0000	0x0000	X	?	N/A	Not used.
0x200-0x203	Y	0x0002	0x0000	Y	?	?	?
0x204	Y	0x006F	0x006F	Y	Y	?	AES-256 master key for IdStorage Certificates AES-128-ECB keys derivation. Used by KIRK commands 0x10, 0x12, 0x17 and 0x19.
0x205	Y	0x006F	0x006F	Y	Y	?	?
0x206	Y	0x00AF	0x00A0	Y	?	?	Master key used to derive key used to decrypt personalized layer over SLSK. Should be per-console.
0x207	Y	0x00AF	0x00A0	Y	?	?	Master key used instead of keyring 0x206 when first_loader secret debug mode is set. (Possibly non-per-console?)
0x208-0x20D	Y	0x00AF	0x00A0	Y	?	?	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	Y	?	0x0010	Y	?	?	Maybe per-console eMMC crypto keys? Protected by second_loader.
0x210-0x211	Y	0x001F	0x0000	Y	?	?	?
0x212	Y	0x001F	0x001F	Y	Y	?	AES-256-CMAC key used by KIRK commands 0x12 and 0x19.
0x213	Y	0x001F	0x001F	Y	Y	?	AES-256-CBC key used to derive (by seed encryption) SMI keys in second_loader, which are used for minimum firmware version decryption.
0x214	Y	0x001F	0x0000	Y	?	?	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	Y	0x001F	0x0000	Y	?	?	?
0x216	Y	0x001F	0x001F	Y	Y	?	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	Y	0x001F	0x0000	Y	?	?	?
0x218-0x2FF	X	0x0000	0x0000	X	?	N/A	Not used.
0x300-0x33F	Y	0x0002	0x0000	Y	?	?	?
0x340	Y	0x012F	0x012F	Y	?	?	Used to decrypt keys into the 0x10 keyring.
0x341-0x343	Y	0x012F	0x0120	Y	?	?	?
0x344	Y	0x022F	0x0220	Y	?	?	Master key used to derive the 0x20 keyring in first_loader.
0x345-0x348	Y	0x022F	0x022F	Y	?	?	Used to decrypt keys into one of the 0x21-0x24 keyrings.
0x349-0x353	Y	0x022F	0x0220	Y	?	?	?
0x354-0x3FF	Y	0x001F	0x0000	Y	?	?	?
0x400-0x47F	N	0x1800	0x0000	N	?	?	?
0x480-0x4FF	X	0x0000	0x0000	X	?	N/A	Not used.
0x500	N	0x1800	0x1800	N	?	?	?
0x501	N	0x1800	0x1000	Y	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	N	0x1800	0x1800	Y	Y	second_loader	AES XTS Tweak for Ernie SNVS sectors.
0x503	N	0x1800	0x1800	Y	Y	second_loader	AES XTS Decryption Key for Ernie SNVS sectors.
0x504	N	0x1800	0x1800	Y	Y	second_loader	AES-128-CMAC Key for Ernie SNVS sectors.
0x505	N	0x1800	0x0000	N	?	?	?
0x506	N	0x1800	0x1800	Y	N	second_loader	QAF Token AES-256-CBC and AES-256-CMAC key. Hardcoded in second_loader. Used with IV = keyring 0x507.
0x507	N	0x1800	0x1800	Y	N	second_loader	QAF Token AES-256-CBC IV. Hardcoded in second_loader.
0x508	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	Y	second_loader	ConsoleId of unit. Comes from IdStorage (eMMC).
0x50A	N	0x1800	0x1800	Y	Y	second_loader	QA flags. 0x10 bytes. Comes from Ernie NVS (Ernie command 0x1082).
0x50B	N	0x1800	0x1800	Y	Y	second_loader	Mgmt Data. 8 bytes. Comes from Ernie SNVS block 0 (Ernie command 0xD2).
0x50C	N	0x1800	0x1800	Y	N	second_loader	Second_Loader#Boot_type_indicator_for_slsk
0x50D	N	0x1800	0x1800	Y	Y	second_loader	OpenPSID of unit. Comes from IdStorage (eMMC).
0x50E	N	0x1800	0x1800	Y	Y	second_loader	Current firmware version. Comes from Ernie SNVS (Ernie command 0xD0).
0x50F	N	0x1800	0x1800	Y	Y	second_loader	Minimum firmware version. Comes from IdStorage SMI leaf (eMMC). 4 bytes.
0x510	N	0x1800	0x1800	Y	Y	second_loader	DIP Switches. 0x20 bytes. Comes from CP and Ernie VS (Ernie command 0x90 offset 0xE0).
0x511	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	Y	second_loader	DRAM size. Set to 0x20000000 by default, 0x40000000 on DevKit in DevKit Memory Size mode. Determined by DIP Switches (CP).
0x514	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	Y	second_loader	Another current FW version (3.60+?). Comes from SNVS (Ernie command 0xD0).
0x519	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	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	N	0x1800	0x1800	Y	Y	second_loader	Hardware Info. 4 bytes. Comes from Ernie Code Flash memory (Ernie command 5).
0x51C-0x51D	N	0x1800	0x0000	N	?	?	Used in update_service_sm for NVS. 4 bytes for each keyring.
0x51E-0x521	N	0x1800	0x0000	N	?	?	Used in update_service_sm for NVS. 4 bytes for each keyring.
0x522-0x57F	N	0x1800	0x0000	N	?	?	?
0x580-0x5FF	X	0x0000	0x0000	X	?	N/A	Not used.
0x600	Y	0x1000	0x1000	Y	Y	?	VisibleId of unit.
0x601	Y	0x1000	0x1000	Y	Y	?	?
0x602	Y	0x1000	0x1000	Y	Y	?	256 bits copied to 0xE0020100 by second_loader.
0x603	Y	0x1000	0x1000	Y	N	?	SLSK RSA public key has flags
0x604	Y	0x1000	0x1000	Y	N	?	?
0x605-0x607	Y	0x1000	0x0000	Y	?	?	?
0x608-0x6FF	X	0x0000	0x0000	X	X	N/A	Not used.
0x700-0x7FF	Y	0x1000	0x0000	Y	N	?	16 RSA public keys for SLSK files. Which key is used depends on public key revision specified in SLSK header.

Key rings flags on FW 3.60 after kernel boot time

KeyringId=0x000 Range=0x001 Flags=0x04420003
KeyringId=0x001 Range=0x001 Flags=0x04420001
KeyringId=0x002 Range=0x006 Flags=0x00400001
KeyringId=0x008 Range=0x001 Flags=0x00810003
KeyringId=0x009 Range=0x001 Flags=0x00800001
KeyringId=0x00A Range=0x006 Flags=0x00800003
KeyringId=0x010 Range=0x001 Flags=0x05020001
KeyringId=0x011 Range=0x00F Flags=0x01000001
KeyringId=0x020 Range=0x001 Flags=0x02000003
KeyringId=0x021 Range=0x004 Flags=0x061F0001
KeyringId=0x025 Range=0x00B Flags=0x02000001
KeyringId=0x030 Range=0x005 Flags=0x041F0001
KeyringId=0x035 Range=0x04B Flags=0x00000001
KeyringId=0x080 Range=0x080 Flags=0x00000000
KeyringId=0x100 Range=0x001 Flags=0x041F0001
KeyringId=0x101 Range=0x07F Flags=0x00000001
KeyringId=0x180 Range=0x080 Flags=0x00000000
KeyringId=0x200 Range=0x004 Flags=0x00000003
KeyringId=0x204 Range=0x002 Flags=0x006F0003
KeyringId=0x206 Range=0x008 Flags=0x00A00003
KeyringId=0x20E Range=0x002 Flags=0x00100003
KeyringId=0x210 Range=0x002 Flags=0x00000003
KeyringId=0x212 Range=0x002 Flags=0x001F0003
KeyringId=0x214 Range=0x002 Flags=0x00000003
KeyringId=0x216 Range=0x001 Flags=0x001F0003
KeyringId=0x217 Range=0x001 Flags=0x00000003
KeyringId=0x218 Range=0x0E8 Flags=0x00000000
KeyringId=0x300 Range=0x040 Flags=0x00000003
KeyringId=0x340 Range=0x001 Flags=0x012F0003
KeyringId=0x341 Range=0x003 Flags=0x01200003
KeyringId=0x344 Range=0x001 Flags=0x02200003
KeyringId=0x345 Range=0x004 Flags=0x022F0003
KeyringId=0x349 Range=0x00B Flags=0x02200003
KeyringId=0x354 Range=0x0AC Flags=0x00000003
KeyringId=0x400 Range=0x080 Flags=0x00000001
KeyringId=0x480 Range=0x080 Flags=0x00000000
KeyringId=0x500 Range=0x001 Flags=0x18000001
KeyringId=0x501 Range=0x001 Flags=0x10000007
KeyringId=0x502 Range=0x003 Flags=0x18000003
KeyringId=0x505 Range=0x001 Flags=0x00000001
KeyringId=0x506 Range=0x004 Flags=0x18000003
KeyringId=0x50A Range=0x001 Flags=0x18000007
KeyringId=0x50B Range=0x003 Flags=0x18000003
KeyringId=0x50E Range=0x001 Flags=0x10000003
KeyringId=0x50F Range=0x003 Flags=0x18000003
KeyringId=0x512 Range=0x001 Flags=0x18000007
KeyringId=0x513 Range=0x003 Flags=0x18000003
KeyringId=0x516 Range=0x001 Flags=0x18000007
KeyringId=0x517 Range=0x005 Flags=0x18000003
KeyringId=0x51C Range=0x064 Flags=0x00000001
KeyringId=0x580 Range=0x080 Flags=0x00000000
KeyringId=0x600 Range=0x005 Flags=0x10000003
KeyringId=0x605 Range=0x003 Flags=0x00000003
KeyringId=0x608 Range=0x0F8 Flags=0x00000000
KeyringId=0x700 Range=0x100 Flags=0x00000003