X-Git-Url: https://git.cryptolib.org/?p=labortage2013badge.git;a=blobdiff_plain;f=firmware%2Fhotp.h;fp=firmware%2Fhotp.h;h=49b42b63fd75dda8b21a05618d2a4c609aece791;hp=8265e0ce6f574cf346077fbebd102a75c65795f7;hb=64f486437e6ca9d28bda4559dc322d34ea217210;hpb=a971d272c572905df24bf4820fa09bf4838537e5

diff --git a/firmware/hotp.h b/firmware/hotp.h
index 8265e0c..49b42b6 100644
--- a/firmware/hotp.h
+++ b/firmware/hotp.h
@@ -22,6 +22,6 @@
 
 #include <stdint.h>
 
-void hotp(char *buffer, void* secret, uint16_t secret_length_b, uint32_t counter, uint8_t digits);
+void hotp(char *buffer, const void* secret, uint16_t secret_length_b, uint32_t counter, uint8_t digits);
 
 #endif /* HOTP_H_ */