私はバックアップ用の OpenPGP 鍵ペアを追加で作成しました。ハードウェアセキュリティキーが使用不能になった場合、私の身元とそれに紐付く暗号学的信頼関係を回復できます。
以下はバックアップの OpenPGP 公開鍵です：
-----BEGIN PGP PUBLIC KEY BLOCK-----
Comment: User ID: Rebel Zhang <rebel1725@autistici.org>
Comment: Valid from: 14/09/2025 09:12
Comment: Valid until: 14/09/2026 23:58
Comment: Type: 255-bit EdDSA (secret key available)
Comment: Usage: Signing, Encryption, Certifying User IDs, SSH Authentication
Comment: Fingerprint: 7083EAFFF75321FF9634ABCD98313A47362B498B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=60kH
-----END PGP PUBLIC KEY BLOCK-----
および相互署名：
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I hereby formally acknowledge that the OpenPGP key 7083EAFFF75321FF9634ABCD98313A47362B498B is associated with and under the control of the individual whose OpenPGP key has the fingerprint 696A423E9993D727706AA733BCD5DC5659C7FB50.
-----BEGIN PGP SIGNATURE-----
iHUEARYKAB0WIQRpakI+mZPXJ3BqpzO81dxWWcf7UAUCaMYggwAKCRC81dxWWcf7
UGAoAQDnY45IQ7yAMPjtA/J4R2xVvLj8cNv8JSJFc5qe3bnTMQD/UA27jkASPLCj
FoqkXGoKpj3GIWH2KABUaDUNfq+yzgc=
=gK9P
-----END PGP SIGNATURE-----
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
I hereby formally acknowledge that the OpenPGP key 696A423E9993D727706AA733BCD5DC5659C7FB50 is associated with and under the control of the individual whose OpenPGP key has the fingerprint 7083EAFFF75321FF9634ABCD98313A47362B498B.
-----BEGIN PGP SIGNATURE-----
iHUEARYKAB0WIQRwg+r/91Mh/5Y0q82YMTpHNitJiwUCaMYgpwAKCRCYMTpHNitJ
i1gVAQDIGdJLKTemlOZLqbaf51rMt8UXqLO8VSI56ek5i77RwgD9EM4FwhSw5DbE
tZhm1pJFCK8wd3xqHITcy3tH2K4b3g8=
=PYQK
-----END PGP SIGNATURE-----