YubiKey Hardware FIDO2 AAGUIDs


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 (Blue)

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 CSPN

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 CSPN

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 CSPN

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 CSPN

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 CSPN

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 CSPN

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 (Blue)

5.1

f8a011f3-8c0a-4d15-8006-17111f9edc7d

Level 1

Security Key By Yubico (Blue)

5.2

b92c3f9a-c014-4056-887f-140a2501163b

Level 1

Security Key NFC (Blue)

5.1

6d44ba9b-f6ec-2e49-b930-0c8fe920cb73

Level 1

Security Key NFC (USB-A, USB-C) (Blue)

5.2, 5.4

149a2021-8ef6-4133-96b8-81f8d5b7f1f5

Level 1

YubiKey Bio Series

5.5, 5.6

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) (Black)

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