Is Authnkey safe?

Authnkey is a credential provider that lets you use FIDO2 security keys (like YubiKey, SoloKey, Nitrokey, or Token2) for passkey authentication on Android. Many security keys don't fully work on Android: no PIN entry, no passkeys, just basic tap-to-authenticate. Authnkey fixes that. Install it, enable it in your phone's settings, and your FIDO2 security key or smartcard gains full passkey support…

Developer: Michel Le Bihan
Category: Password & 2FA
First release: 27 Aug 2026
License: Not documented

02 / Package identity

Technical fingerprint

Application IDpl.lebihan.authnkey

Latest APK SHA-2563fb0f30f44dba854760feefefe5992bd10edafca551eed14eb79708732789f7e

Signing certificateBB:F5:D7:BE:D8:2B:5B:9B:9F:8D:98:25:E6:20:46:4C:8A:28:ED:6C:7A:1E:B0:98:DF:C1:F9:72:DF:9C:58:0B

MIN ANDROID34TARGET37ARCHITECTURE

03 / History

Project timeline

27 Aug 2026

Package observed in source index

Metadata and versions observed from the fdroid repository index.

04 / Version archive

Documented releases

1 TOTAL

VersionReleasedAndroidArchitecture

1.2.627 Aug 202634+→

05 / Safety & access

Safety verdict

Authentic — file hash matches the source indexNo ads or tracking flagged by the source

IntegritySHA-256 verified vs source

SourceOpen-source · fdroid

Permissions4 declared · 0 sensitive

Signaturepresent

Anti-featuresNo known anti-features

Sensitive accessNo sensitive permissions

Declared permissions

android.permission.NFC android.permission.USE_BIOMETRIC android.permission.USE_FINGERPRINT pl.lebihan.authnkey.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Tracker status: Not assessed by WIKI for Android.

06 / Sources

Evidence ledger

Each entry is a captured public reference backing this record.

RepositorySource package page↗Source codeSource repository↗