1 files changed, 1 insertions, 0 deletions
diff --git a/lib/sha1.h b/lib/sha1.h
index 4ef8ac92..a87410eb 100644
--- a/lib/sha1.h
+++ b/lib/sha1.h
@@ -66,5 +66,6 @@ typedef struct SHA1Context {
 G_MODULE_EXPORT int sha1_init(sha1_state_t *);
 G_MODULE_EXPORT int sha1_append(sha1_state_t *, const uint8_t *, unsigned int);
 G_MODULE_EXPORT int sha1_finish(sha1_state_t *, uint8_t Message_Digest[sha1_hash_size]);
+G_MODULE_EXPORT void sha1_hmac(const char *key_, size_t key_len, const char *payload, size_t payload_len, uint8_t Message_Digest[sha1_hash_size]);
 
 #endif