軟體模擬 FIDO2 裝置

看到「Virtual FIDO」這個專案,用軟體模擬 FIDO2 裝置:

Virtual FIDO is a virtual USB device that implements the FIDO2/U2F protocol (like a YubiKey) to support 2FA and WebAuthN.

就安全性來說有點本末倒置,畢竟硬體確保了 secret 無法被軟體直接搬走,而這個軟體模擬的方式就沒辦法了,這個專案比較像是實驗示範性質...

翻了一下 Hacker News 上也有人提到這個問題:「Show HN: A virtual Yubikey device for 2FA/WebAuthN (github.com/bulwarkid)」,但也有提到「tpm-fido」這個專案,用 TPM 來保護:

tpm-fido is FIDO token implementation for Linux that protects the token keys by using your system's TPM. tpm-fido uses Linux's uhid facility to emulate a USB HID device so that it is properly detected by browsers.

這個至少有一點保護,但還是不像實體的 YubiKey 那樣會需要碰一下才認證。

One thought on “軟體模擬 FIDO2 裝置”

Leave a Reply

Your email address will not be published. Required fields are marked *