diff options
-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") |