doc: add info about message signature

Signed-off-by: Clément Péron <[email protected]>
2019-03-26 14:31:58 +01:00
parent 78295bc6d8
commit a9e1da08b3
1 changed files with 1 additions and 0 deletions
@@ -168,6 +168,7 @@ The input data is the message to sign, streamed to the device in 255 bytes maxim
 | First derivation index (big endian)                                               | 4
 | ...                                                                               | 4
 | Last derivation index (big endian)                                                | 4
+| Message length                                                                    | 4
 | Message chunk                                                                     | variable
 |==============================================================================================================================