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

5.7

a25342c0-3cdc-4414-8e46-f4807fca511c

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

5.7

19083c3d-8383-4b18-bc03-8f1c9ab2fd1b

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

5.7

19083c3d-8383-4b18-bc03-8f1c9ab2fd1b

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

5.7

19083c3d-8383-4b18-bc03-8f1c9ab2fd1b

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

5.7

a25342c0-3cdc-4414-8e46-f4807fca511c

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

5.7

a02167b9-ae71-4ac7-9a07-06432ebb6f1c

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 - FIDO Edition

5.5, 5.6

d8522d9f-575b-4866-88a9-ba99fa02f35b

Level 1

YubiKey Bio - FIDO Edition

5.7

dd86a2da-86a0-4cbe-b462-4bd31f57bc6f

Level 1*

YubiKey Bio Series - Multi-protocol Edition

5.6

7d1351a6-e097-4852-b8bf-c9ac5c9ce4a3

Level 1

YubiKey Bio Series - Multi-protocol Edition

5.7

90636e1f-ef82-43bf-bdcf-5255f139d12f

Level 1*

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

5.4

a4e9fc6d-4cbe-4758-b8ba-37598bb5bbaa

Level 2

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

5.7

e77e3c64-05e3-428b-8824-0cbeb04b829d

Level 1*

Security Key NFC - Enterprise Edition (USB-A, USB-C) (Black)

5.4

0bb43545-fd2c-4185-87dd-feb0b2916ace

Level 2

Security Key NFC - Enterprise Edition (USB-A, USB-C) (Black)

5.7

47ab2fb4-66ac-4184-9ae1-86be814012d5

Level 1*

 

*FIDO L2 certification is currently in progress

Enterprise Attestation capable devices

FIDO2 devices that are Enterprise Attestation capable are assigned a different AAGUID from devices that are not Enterprise Attestation capable. These devices are known as "enterprise profile."

Product Name or Laser Marking

Firmware

FIDO2 AAGUID

FIDO Certification Level

YubiKey 5 NFC

5.7

1ac71f64-468d-4fe0-bef1-0e5f2f551f18

In progress

YubiKey 5 Nano

5.7

20ac7a17-c814-4833-93fe-539f0d5e3389

In progress

YubiKey 5C

5.7

20ac7a17-c814-4833-93fe-539f0d5e3389

In progress

YubiKey 5C Nano

5.7

20ac7a17-c814-4833-93fe-539f0d5e3389

In progress

YubiKey 5C NFC

5.7

1ac71f64-468d-4fe0-bef1-0e5f2f551f18

In progress

YubiKey 5Ci

5.7

b90e7dc1-316e-4fee-a25a-56a666a670fe

In progress
YubiKey Bio Series - FIDO Edition

5.7

8c39ee86-7f9a-4a95-9ba3-f6b097e5c2ee

In progress

YubiKey Bio Series - Multi-protocol Edition

5.6

68167692-ff5a-4ac8-9fd7-0be292a1af68

In progress

YubiKey Bio Series - Multi-protocol Edition

5.7

97e6a830-c952-4740-95fc-7c78dc97ce47

In progress

Security Key NFC - Enterprise Edition (USB-A, USB-C) (Black)

5.7

9ff4cc65-6154-4fff-ba09-9e2af7882ad2

In progress