diff options
| author | djm@openbsd.org <djm@openbsd.org> | 2019-12-11 22:19:47 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2019-12-14 07:09:23 +1100 |
| commit | c33d46868c3d88e04a92610cdb429094aeeb5847 (patch) | |
| tree | 9901cc8f4a414da79a8c2d17ee6fbe59ac6374ff /PROTOCOL.u2f | |
| parent | a62f4e1960691f3aeb1f972e009788b29e2ae464 (diff) | |
upstream: add a note about the 'extensions' field in the signed
object
OpenBSD-Commit-ID: 67c01e0565b258e0818c1ccfe1f1aeaf9a0d4c7b
Diffstat (limited to 'PROTOCOL.u2f')
| -rw-r--r-- | PROTOCOL.u2f | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/PROTOCOL.u2f b/PROTOCOL.u2f index 32bfa20f3..066d09951 100644 --- a/PROTOCOL.u2f +++ b/PROTOCOL.u2f | |||
| @@ -170,6 +170,10 @@ is signed over a blob that consists of: | |||
| 170 | byte[] extensions | 170 | byte[] extensions |
| 171 | byte[32] SHA256(message) | 171 | byte[32] SHA256(message) |
| 172 | 172 | ||
| 173 | No extensons are yet defined for SSH use. If any are defined in the future, | ||
| 174 | it will be possible to infer their presence from the contents of the "flags" | ||
| 175 | value. | ||
| 176 | |||
| 173 | The signature returned from U2F hardware takes the following format: | 177 | The signature returned from U2F hardware takes the following format: |
| 174 | 178 | ||
| 175 | byte flags (including "user present") | 179 | byte flags (including "user present") |