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 U2F Security Key

All

N/A

YubiKey 4 (Series)

All

N/A

YubiKey FIPS (4 Series)

4.4

N/A

YubiKey 5 (USB-A, No NFC)

5.1

cb69481e-8ff7-4039-93ec-0a2729a154a8

YubiKey 5 (USB-A, No NFC)

5.2, 5.4

ee882879-721c-4913-9775-3dfcce97072a

YubiKey 5 NFC

5.1

fa2b99dc-9e39-4257-8f92-4a30d23c4118

YubiKey 5 NFC

5.2, 5.4

2fc0579f-8113-47ea-b116-bb5a8db9202a

YubiKey 5 NFC FIPS

5.4

c1f9a0bc-1dd2-404a-b27f-8e29047a43fd

YubiKey 5 Nano

5.1

cb69481e-8ff7-4039-93ec-0a2729a154a8

YubiKey 5 Nano

5.2, 5.4

ee882879-721c-4913-9775-3dfcce97072a

YubiKey 5 Nano FIPS

5.4

73bb0cd4-e502-49b8-9c6f-b59445bf720b

YubiKey 5C

5.1

cb69481e-8ff7-4039-93ec-0a2729a154a8

YubiKey 5C

5.2, 5.4

ee882879-721c-4913-9775-3dfcce97072a

YubiKey 5C FIPS

5.4

73bb0cd4-e502-49b8-9c6f-b59445bf720b

YubiKey 5C Nano

5.1

cb69481e-8ff7-4039-93ec-0a2729a154a8

YubiKey 5C Nano

5.2, 5.4

ee882879-721c-4913-9775-3dfcce97072a

YubiKey 5C Nano FIPS

5.4

73bb0cd4-e502-49b8-9c6f-b59445bf720b

YubiKey 5C NFC

5.2, 5.4

2fc0579f-8113-47ea-b116-bb5a8db9202a

YubiKey 5C NFC FIPS

5.4

c1f9a0bc-1dd2-404a-b27f-8e29047a43fd

YubiKey 5Ci

5.2, 5.4

c5ef55ff-ad9a-4b9f-b580-adebafe026d0

YubiKey 5Ci FIPS

5.4

85203421-48f9-4355-9bc8-8a53846e5083

Security Key By Yubico

5.1

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

Security Key By Yubico

5.2, 5.4

b92c3f9a-c014-4056-887f-140a2501163b

Security Key NFC

5.1

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

Security Key NFC

5.2, 5.4

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

 

FIDO MDS:


Description

FIDO2 AAGUID

Security Key by Yubico with NFC 149a2021-8ef6-4133-96b8-81f8d5b7f1f5
YubiKey Series 5 with NFC 2fc0579f-8113-47ea-b116-bb5a8db9202a
Security Key by Yubico with NFC 6d44ba9b-f6ec-2e49-b930-0c8fe920cb73
YubiKey Series 5 FIPS 73bb0cd4-e502-49b8-9c6f-b59445bf720b
YubiKey Series 5Ci FIPS 85203421-48f9-4355-9bc8-8a53846e5083
Security Key by Yubico b92c3f9a-c014-4056-887f-140a2501163b
YubiKey Series 5 FIPS with NFC c1f9a0bc-1dd2-404a-b27f-8e29047a43fd
YubiKey Series 5Ci c5ef55ff-ad9a-4b9f-b580-adebafe026d0
YubiKey Series 5 cb69481e-8ff7-4039-93ec-0a2729a154a8
YubiKey Series 5 ee882879-721c-4913-9775-3dfcce97072a
Security Key by Yubico f8a011f3-8c0a-4d15-8006-17111f9edc7d
YubiKey Series 5 with NFC fa2b99dc-9e39-4257-8f92-4a30d23c4118