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Diffstat (limited to 'PROTOCOL.u2f')
-rw-r--r-- | PROTOCOL.u2f | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/PROTOCOL.u2f b/PROTOCOL.u2f index 917e669cd..fd4325b3a 100644 --- a/PROTOCOL.u2f +++ b/PROTOCOL.u2f | |||
@@ -39,6 +39,13 @@ the key handle be supplied for each signature operation. U2F tokens | |||
39 | primarily use ECDSA signatures in the NIST-P256 field, though the FIDO2 | 39 | primarily use ECDSA signatures in the NIST-P256 field, though the FIDO2 |
40 | standard specifies additional key types, including one based on Ed25519. | 40 | standard specifies additional key types, including one based on Ed25519. |
41 | 41 | ||
42 | Use of U2F security keys does not automatically imply multi-factor | ||
43 | authentication. From sshd’s perspective, a security key constitutes a | ||
44 | single factor of authentication, even if protected by a PIN or biometric | ||
45 | authentication. To enable multi-factor authentication in ssh, please | ||
46 | refer to the AuthenticationMethods option in sshd_config(5). | ||
47 | |||
48 | |||
42 | SSH U2F Key formats | 49 | SSH U2F Key formats |
43 | ------------------- | 50 | ------------------- |
44 | 51 | ||