APPLICATION NOTE
Factory Default Test Data
ATECC108A and ATECC508A
Description
The Atmel® CryptoAuthentication™ ATECC108A and ATECC508A crypto element
devices with hardware-based key storage come with a preset factory configuration
for the Configuration zone and the Data/OTP zones. The factory configuration is
intended to be used for constant/fixed vector testing; however, it can also be used
as a guide for the designer to configure their own system as many common use
cases are covered.
It is not recommended that factory values be left in the data key slots. The
customer should always create unique 32-byte values for these slots prior to
system shipment. This application note provides the factory configuration values
for the Configuration and Data/OTP zones. The details of the factory Configuration
zone, OTP zones, and the key values are discussed.
The Atmel Crypto Evaluation Studio (ACES) software is used to configure the
crypto element device. The Configuration zone, slots, and Data/OTP zones are
viewable with ACES. ACES can be downloaded from www.atmel.com.
Figure 1.
ACES – Software Environment for Demo, Evaluation, and Design
Device Navigator
Generates, Stores, and Reloads Configuration Files.
Tools
Demos and Wizards Commands
Help
Datasheet Explained via Help Screens
Configuration Zone Displays EEPROM Registers and Contents.
Communication Log
● Teaches Command, Structure, and Encoding.
● Displays Actions and Results.
Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
1
Configuration Zone
The Configuration zone consists of fixed data (serial number and revision number), device configuration (I2C
address, Selector mode, etc.), and slot configuration information. This zone must be written and locked prior to
writing to the Data/OTP zones.
1.1
Fixed Data and Device Configuration
Table 1-1.
2
Configuration Zone
Byte
Name
Default Value
0x00
SN03[4]; (MfrID = 01 23 EE for SA102)
0x01, 0x23, 0x02, 0x03
0x00
RevNum[4];
, , ,
0x00
SN48[5]; (SN = 02 03 04 05 06 07 for SA102)
0x04, 0x05, 0x06, 0x07, 0xEE
0x00
EE config
0xA1
0x00
I2C Enable
0x18
0x00
TestConfig: EnLock
0x55
0x00
TWIaddress
0xC8
0x00
tempOffset;
0x00
0x00
OTPMode
0x55
0x00
Chip Mode
0x00
0x00
slotConfig[0-3] from other worksheet
, , , ,
slotConfig[4-7]
, , , ,
slotConfig[8-11]
, , , ,
slotConfig[12-15]
, , ,
0x00
useFlag / useCount for keys 0-3
{0xFF, 0}, {0xFF, 0}, {0xFF, 0}, {0xFF, 0}
0x00
useFlag / useCount for keys 4-7
{0xFF, 0}, {0xFF, 0}, {0xFF, 0}, {0xFF, 0}
0x00
lastKeyUse[0-7];
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
lastKeyUse[8-15];
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
0x00
userExtra
0x00
0x55
Selector/family code
0x00
0x00
lockValue (unlocked)
0x55
0x00
lockConfig (unlocked)
0x55
0x58
Slot Locked
0xFF, 0xFF
0x00
tempSenseConfig
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
0x60
Key Config[0-3]
0x0000, 0x0000, 0x0000, 0x0000
0x68
Key Config[4-7]
0x0000, 0x0000, 0x0000, 0x0000
0x70
Key Config[8-11]
0x0000, 0x0000, 0x0000, 0x0000
0x78
Key Config[12-15]
0x0000, 0x0000, 0x0000, 0x0000
0x80
STI_LOCK
0xFF
0x81
ChargePumpSlope
0x00
0x82
EE Checksum
0x00
ATECC108A/508A
Factory Default Test Data [APPLICATION NOTE]
2
Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
Name
Default Value
0x00
DEK
0x00, 0x00, 0x00
0x87
TestConfig
0x00
0x88
RandIV
1
0x89
Spare
2
0x8A
KeyIV
1, 2, 3, 4, 5, 6
0x00
RandA_Seed
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
0x00
RandB_Seed
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
0xB0
SlotIV
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
Slot Configuration
Each of the 16 slots in the device must be configured via the SlotConfig field to control access and usage. The
below table lists the default values for these fields.
WriteKey
IsSecret
EncryptRd
SingleUse
CheckOnly
Slot Configuration
ReadKey
Table 1-2.
Key
1.2
Byte
WriteConfig
Notes
Straightforward usage – fixed key.
0
15
0
0
0
1
0
Never
1
0
0
0
0
1
1
RollAuth
2
2
0
0
0
1
0
RollParent
3
3
0
1
0
1
0
RollFree
No-auth Roll Key
4
4
1
0
0
1
0
Encrypt
Key for host use only.
5
0
0
1
0
1
5
Never
6
6
0
0
0
1
0
Encrypt
Normal parent updateable key.
7
7
0
0
0
1
7
Always
Easily updated key.
8
15
0
0
0
0
0
Always
Straightforward usage – R/W data.
9
9
0
0
0
1
2
ChildAuth
Child key (Parent is 2).
10
10
0
0
0
1
10
ChildFree
Child – no authorization required.
11
11
0
0
0
0
11
Never
12
12
0
0
0
0
12
Encrypt
Protected write, open read data – self encrypt.
13
13
1
0
1
1
13
Encrypt
Host data to be validated.
14
2
0
0
1
1
2
Encrypt
R/W Encrypted data slot.
15
15
0
1
0
1
15
Never
Rollable Key – MAC required; no parent update.
Rollable Key – MAC required; parent update.
Single use key slot.
Read only data.
Limited use key.
ATECC108A/508A Factory Default Test Data [APPLICATION NOTE]
Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
3 3
4
66 D0 45 3A C2 25
77 2F 4A 9C C0 5E 45
88 C6 2A FE 1F 82 D4 E0 85
99 4E 6D 4A F5
66
77
88
99
7
8
9
25
26
27
28 29
13 B5 5E DA 3D 94
24
18
15
12
96 12 F6
F7
29 FD 50 7C 9A A2 67
17
99
99
92 A1 44 AA AA
98 8D F4
88
77
66
55
44
33
22
11
00
31
82 E9 42 1E D1 3D 7B BD 2E EE EE
10 5A 65 D2 DD DD
85 0D CC CC
54 3A E5 BE DA 2E 91 9A E5 0D 32 A1 FF FF
77 BD A7 B8 A7 AF 58 D1 8B 92 F0 DF 79 AD 05 5E 42
95 DF 30 0D EA 22 A0 65 4E 21 C9 CE 74
62 4C A5 66 2B 22 BB D1 95 DA 2A 9E 49 B8 08
96 60 0A FF 62 D4 C4 4C 3E 10 20 2A AA 8F EC B6 8A BB BB
69 11
15 FF FF 68 B7 B8 01 BE 66 2C EC 74 68 0F E4 7D C1 C6 72
55
90
55 9C C9 B6 28 0F 92
46 28
64 A1 F0 8D C9 17
96 46
13 DD DD BF AC 11
14 EE EE 08
32 CD 25 FC 66
55
38 CF 3C 44
06 27 E4 F0 CF 03 0E 27 B8 EE E3 88
30 6B D2 D5 27 7D 77 B3 95 E3 C3 50 8C DA E0 98 1F 9D 28
85 34 4D 77 B8 9D EC 36 F2
45 AC D2 92
70
54 56 C9 A1 72
33
22
99 BD 26 96 DD 49 F8 A5 06 C8 B6 39 CD 3D A8 4C C6 D1 3C 32 CA 0F 77
12 CC CC C6 17 1A 52
11 BB BB 24 DB 78 A8 70
18
29 6D F4 5A 3E 44
49 1E 90 6B 62
02 02 1C 55 B2 57 DF 0C 73 5F 05
30 A5 09
01 03 6A 0D B5 04
88 87
90 3D B5 1C 72 E0 C9 31
34
57 F6 D4 6B 7D DF 96 89 DA 2C BC D9 C3 5A D5 9A 42 DE 30
10 AA AA 15 A2 55 0B D2 EA 9A F2
92
67
57 0C 74 2E DA DA 52
98 A6 E1 E6 33 7A 52
68 3D B8 D3 F8
86 F2 B3 20
91
61 4A 17 9A 23 6C 7F E4 BE 2F 13 20
43 E3 9C FB 6B 0B 68 49 E3 2C 24 A3 1B 06
11
00
30
Table 2-1.
33
89 AA 00
23 B6 CC 53 B7 B9 E9 BB 51 FD 2F 74 CD 0E 91 D9 7F EB 84 7B 98 09 F4 CD 93 6A B6 48
6
22 23
55
21
55
19 20
5
18
44
16 17
44
15
4
13 14
33
12
33
10 11
3
9
22 C1 7C 1C 4D 56
8
22
7
2
6
1
5
11
4
00 A1 AC 57 FF 40 4E 45 D4 04 01 BD 0E D3 C6 73 D3 B7 B8 2D 85 D9 F3
3
11
2
00
1
0
Key 0
2
Data/OTP Zones
The ECC devices also come with preconfigured Data and OTP zones. Each byte on the OTP zone is configured
to 0xFF, while each byte on the Data zone is configured with a default specific value. The default value of the Data
zone can be found in the below table. Before writing to the OTP/Data slots, the Configuration zone must be
configured and locked.
Data Zones
ATECC108A/508A
Factory Default Test Data [APPLICATION NOTE]
4
Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
3
Revision History
Doc Rev.
Date
8953A
07/2015
Comments
Initial document release.
ATECC108A/508A Factory Default Test Data [APPLICATION NOTE]
Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
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Atmel-8953A-CryptoAuth-ECC-Factory-Default-Test-Data-ApplicationNote_072015
ATECC108A/508A
Factory Default Test Data [APPLICATION NOTE]
6