diff options
| author | Damien Miller <djm@cvs.openbsd.org> | 2019-12-11 22:19:48 +0000 |
|---|---|---|
| committer | Damien Miller <djm@cvs.openbsd.org> | 2019-12-11 22:19:48 +0000 |
| commit | e5ae2c6b32314171b1f24efc0c985c8a96f991cc (patch) | |
| tree | 953dd5abef4474dc29294c58c6635169435df491 /usr.bin | |
| parent | c2a5aa4d4c32a73e3c3520e103f2408f1a7adff1 (diff) | |
add a note about the 'extensions' field in the signed object
Diffstat (limited to 'usr.bin')
| -rw-r--r-- | usr.bin/ssh/PROTOCOL.u2f | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/usr.bin/ssh/PROTOCOL.u2f b/usr.bin/ssh/PROTOCOL.u2f index 32bfa20f316..066d0995162 100644 --- a/usr.bin/ssh/PROTOCOL.u2f +++ b/usr.bin/ssh/PROTOCOL.u2f @@ -170,6 +170,10 @@ is signed over a blob that consists of: byte[] extensions byte[32] SHA256(message) +No extensons are yet defined for SSH use. If any are defined in the future, +it will be possible to infer their presence from the contents of the "flags" +value. + The signature returned from U2F hardware takes the following format: byte flags (including "user present") |