fix der encoding bug in u2f

2018-05-26 15:35:58 -04:00
parent 9209bff54f
commit f73862ee3e
3 changed files with 31 additions and 46 deletions
--- a/ctap.h
+++ b/ctap.h
@@ -237,6 +237,9 @@ void ctap_response_init(CTAP_RESPONSE * resp);

 uint8_t ctap_handle_packet(uint8_t * pkt_raw, int length, CTAP_RESPONSE * resp);

+// Encodes R,S signature to 2 der sequence of two integers.  Sigder must be at least 72 bytes.
+// @return length of der signature
+int ctap_encode_der_sig(uint8_t * sigbuf, uint8_t * sigder);

 // Run ctap related power-up procedures (init pinToken, generate shared secret)
 void ctap_init();