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The FIDO2 specification states that an Authenticator Attestation GUID (AAGUID) must be provided during attestation. An AAGUID is a 128-bit identifier indicating the type of the authenticator. Authenticators with the same capabilities and firmware, such as the YubiKey 5 series devices without NFC, can share the same AAGUID.
New AAGUIDs will be issued for new YubiKey products which support FIDO2, or when existing YubiKey products have FIDO2 features added or removed.
|
Product Name or Laser Marking |
Firmware |
FIDO2 AAGUID |
FIDO Certification Level |
|
FIDO U2F Security Key |
All |
N/A |
N/A |
|
YubiKey 4 (Series) |
All |
N/A |
N/A |
|
YubiKey FIPS (4 Series) |
4.4 |
N/A |
N/A |
|
YubiKey 5 (USB-A, No NFC) |
5.1 |
cb69481e-8ff7-4039-93ec-0a2729a154a8 |
Level 1 |
|
YubiKey 5 (USB-A, No NFC) |
5.2, 5.4 |
ee882879-721c-4913-9775-3dfcce97072a |
Level 1 |
|
YubiKey 5 NFC |
5.1 |
fa2b99dc-9e39-4257-8f92-4a30d23c4118 |
Level 1 |
|
YubiKey 5 NFC |
5.2, 5.4 |
2fc0579f-8113-47ea-b116-bb5a8db9202a |
Level 1 |
|
YubiKey 5 NFC FIPS |
5.4 |
c1f9a0bc-1dd2-404a-b27f-8e29047a43fd |
Level 2 |
|
YubiKey 5 Nano |
5.1 |
cb69481e-8ff7-4039-93ec-0a2729a154a8 |
Level 1 |
|
YubiKey 5 Nano |
5.2, 5.4 |
ee882879-721c-4913-9775-3dfcce97072a |
Level 1 |
|
YubiKey 5 Nano FIPS |
5.4 |
73bb0cd4-e502-49b8-9c6f-b59445bf720b |
Level 2 |
|
YubiKey 5C |
5.1 |
cb69481e-8ff7-4039-93ec-0a2729a154a8 |
Level 1 |
|
YubiKey 5C |
5.2, 5.4 |
ee882879-721c-4913-9775-3dfcce97072a |
Level 1 |
|
YubiKey 5C FIPS |
5.4 |
73bb0cd4-e502-49b8-9c6f-b59445bf720b |
Level 2 |
|
YubiKey 5C Nano |
5.1 |
cb69481e-8ff7-4039-93ec-0a2729a154a8 |
Level 1 |
|
YubiKey 5C Nano |
5.2, 5.4 |
ee882879-721c-4913-9775-3dfcce97072a |
Level 1 |
|
YubiKey 5C Nano FIPS |
5.4 |
73bb0cd4-e502-49b8-9c6f-b59445bf720b |
Level 2 |
|
YubiKey 5C NFC |
5.2, 5.4 |
2fc0579f-8113-47ea-b116-bb5a8db9202a |
Level 1 |
|
YubiKey 5C NFC FIPS |
5.4 |
c1f9a0bc-1dd2-404a-b27f-8e29047a43fd |
Level 2 |
|
YubiKey 5Ci |
5.2, 5.4 |
c5ef55ff-ad9a-4b9f-b580-adebafe026d0 |
Level 1 |
|
YubiKey 5Ci FIPS |
5.4 |
85203421-48f9-4355-9bc8-8a53846e5083 |
Level 2 |
|
Security Key By Yubico |
5.1 |
f8a011f3-8c0a-4d15-8006-17111f9edc7d |
Level 1 |
|
Security Key By Yubico |
5.2 |
b92c3f9a-c014-4056-887f-140a2501163b |
Level 1 |
|
Security Key NFC |
5.1 |
6d44ba9b-f6ec-2e49-b930-0c8fe920cb73 |
Level 1 |
|
Security Key NFC (USB-A, USB-C) |
5.2, 5.4 |
149a2021-8ef6-4133-96b8-81f8d5b7f1f5 |
Level 1 |
|
YubiKey Bio Series |
5.5 |
d8522d9f-575b-4866-88a9-ba99fa02f35b |
Level 1 |
|
Security Key NFC Black (USB-A, USB-C) |
5.4 |
a4e9fc6d-4cbe-4758-b8ba-37598bb5bbaa |
Level 2 |
|
Security Key NFC - Enterprise Edition (USB-A, USB-C) |
5.4 |
0bb43545-fd2c-4185-87dd-feb0b2916ace |
Level 2 |
FIDO MDS:
|
FIDO2 AAGUID |
Description |
| 0bb43545-fd2c-4185-87dd-feb0b2916ace |
Security Key NFC by Yubico - Enterprise Edition |
| 149a2021-8ef6-4133-96b8-81f8d5b7f1f5 | Security Key by Yubico with NFC |
| 2fc0579f-8113-47ea-b116-bb5a8db9202a | YubiKey 5 Series with NFC |
| 6d44ba9b-f6ec-2e49-b930-0c8fe920cb73 | Security Key by Yubico with NFC |
| 73bb0cd4-e502-49b8-9c6f-b59445bf720b | YubiKey 5 FIPS Series |
| 85203421-48f9-4355-9bc8-8a53846e5083 | YubiKey 5Ci FIPS |
| a4e9fc6d-4cbe-4758-b8ba-37598bb5bbaa |
Security Key by Yubico with NFC |
| b92c3f9a-c014-4056-887f-140a2501163b | Security Key by Yubico |
| c1f9a0bc-1dd2-404a-b27f-8e29047a43fd | YubiKey 5 FIPS Series with NFC |
| c5ef55ff-ad9a-4b9f-b580-adebafe026d0 | YubiKey 5Ci |
| cb69481e-8ff7-4039-93ec-0a2729a154a8 | YubiKey 5 Series |
| d8522d9f-575b-4866-88a9-ba99fa02f35b | YubiKey Bio Series |
| ee882879-721c-4913-9775-3dfcce97072a | YubiKey 5 Series |
| f8a011f3-8c0a-4d15-8006-17111f9edc7d | Security Key by Yubico |
| fa2b99dc-9e39-4257-8f92-4a30d23c4118 | YubiKey 5 Series with NFC |