Update MFA content #341
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Update MFA content #341
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TommyTran732
added
the
[c] update existing
Ganwtrs
reviewed
Dec 13, 2025
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| ### OnlyKey | ||
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| The OnlyKey encrypts its entire internal storage against the user PIN and static secrets baked into the hardware. The PIN consists of digits from 1 to 6, has the maximum length of 10 digits, and has to be physically typed on the key. The Onlykey supports a duress PIN, which other security keys do not have. For further protection against physical attacks, the key is also potted in resin. |
Contributor
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It might be worth mentioning that OnlyKey has a backup feature. Although backups can only happen after inputting the correct passphrase or PGP key, it introduces another attack vector
OnlyKey and the Nitrokey 3A have a FIDO2 Level 1 certification, while the Yubikey 5 and Yubikey Security Key have a FIDO Level 2 certification.
OnlyKeys and probably Yubikeys are written in C, Trezor is half written in C, and Nitrokey (and Solokey) is written in Rust
Contributor
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Trezor Safe 7 now has multiple secure elements, but they have no plans to be FIDO2 Certified Also, GrapheneOS is planning on allowing the HSM in Pixels to be used as an HSM for other workstations |
Ganwtrs
reviewed
Dec 16, 2025
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| ### Nitrokey | ||
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| Nitrokeys, much like the Yubikey, do not encrypt its FIDO2 storage in a meaningful manner. Additionally, it is explicitly noted in their app that the HOTP/TOTP secret storage is also [not encrypted](https://docs.nitrokey.com/nitrokeys/features/totp/general). |
Contributor
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It seems that the Nitrokey 3 encrypts external storage with the secure element
Also, Nitrokey 3 HOTP/TOTP is encrypted
https://discuss.privacyguides.net/t/mention-nitrokey-3as-fido2-certification/20620/13
Ganwtrs
reviewed
Dec 24, 2025
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| Some NitroKeys do support password storage, however, it is tied to the OpenPGP interface. Resetting the OpenPGP interface will make the password database [inaccessible](https://docs.nitrokey.com/nitrokeys/pro/factory-reset). | ||
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| Nitrokeys support firmware updates and receieve them quite frequently. However, the they does not have any potting to protect themselves against physical attacks. |
Contributor
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Suggested change
| Nitrokeys support firmware updates and receieve them quite frequently. However, the they does not have any potting to protect themselves against physical attacks. | |
| Nitrokeys support firmware updates and receive them quite frequently. However, they do not have any potting to protect themselves against physical attacks. |
Ganwtrs
reviewed
Dec 24, 2025
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| ### OnlyKey | ||
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| The OnlyKey encrypts its entire internal storage against the user PIN and static secrets baked into the hardware. The PIN consists of digits from 1 to 6, has the maximum length of 10 digits, and has to be physically typed on the key. The Onlykey supports a duress PIN, which other security keys do not have. For further protection against physical attacks, the key is also potted in resin. |
Contributor
There was a problem hiding this comment.
Suggested change
| The OnlyKey encrypts its entire internal storage against the user PIN and static secrets baked into the hardware. The PIN consists of digits from 1 to 6, has the maximum length of 10 digits, and has to be physically typed on the key. The Onlykey supports a duress PIN, which other security keys do not have. For further protection against physical attacks, the key is also potted in resin. | |
| The OnlyKey encrypts its entire internal storage against the user PIN and static secrets baked into the hardware. The PIN consists of digits from 1 to 6, has the maximum length of 10 digits, and has to be physically typed on the key. The OnlyKey supports a duress PIN, which other security keys do not have. For further protection against physical attacks, the key is also potted in resin. |
Ganwtrs
reviewed
Dec 24, 2025
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| Nitrokeys, much like the Yubikey, do not encrypt its FIDO2 storage in a meaningful manner. Additionally, it is explicitly noted in their app that the HOTP/TOTP secret storage is also [not encrypted](https://docs.nitrokey.com/nitrokeys/features/totp/general). | ||
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| Some NitroKeys do support password storage, however, it is tied to the OpenPGP interface. Resetting the OpenPGP interface will make the password database [inaccessible](https://docs.nitrokey.com/nitrokeys/pro/factory-reset). |
Contributor
There was a problem hiding this comment.
Suggested change
| Some NitroKeys do support password storage, however, it is tied to the OpenPGP interface. Resetting the OpenPGP interface will make the password database [inaccessible](https://docs.nitrokey.com/nitrokeys/pro/factory-reset). | |
| Some Nitrokeys do support password storage. However, it is tied to the OpenPGP interface. Resetting the OpenPGP interface will make the password database [inaccessible](https://docs.nitrokey.com/nitrokeys/pro/factory-reset). |
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