diff --git a/omac_noekeon.h b/omac_noekeon.h
index 6f1e401..c56b3a0 100644
--- a/omac_noekeon.h
+++ b/omac_noekeon.h
@@ -7,7 +7,7 @@
 typedef uint8_t omac_noekeon_ctx_t[16];
 
 void omac_noekeon_init(omac_noekeon_ctx_t* ctx);
-void omac_noekeont_tweak(uint8_t t, const void* key, omac_noekeon_ctx_t* ctx);
+void omac_noekeon_tweak(uint8_t t, const void* key, omac_noekeon_ctx_t* ctx);
 void omac_noekeon_next(const void* buffer, const void* key, 
                        omac_noekeon_ctx_t* ctx);
 void omac_noekeon_last(const void* buffer, uint8_t length_b, const void* key, 
diff --git a/test_src/main-omac-noekeon-test.c b/test_src/main-omac-noekeon-test.c
index 377a921..50a40c0 100644
--- a/test_src/main-omac-noekeon-test.c
+++ b/test_src/main-omac-noekeon-test.c
@@ -72,22 +72,22 @@ void testrun_test_omac_noekeon(void){
 
 uint8_t stat_key[16];
 
-void omac_noekeon_next_dummy(void* buffer, void* ctx){
+void omac_noekeon_next_dummy(void* ctx, const void* buffer){
 	omac_noekeon_next(buffer, stat_key, ctx);
 }
 
-void omac_noekeon_init_dummy(void* key, uint16_t keysize_b, void* ctx){
+void omac_noekeon_init_dummy(void* ctx, const void* key, uint16_t keysize_b){
 	omac_noekeon_init(ctx);
 	memcpy(stat_key, key, 16);
 }
 
-void omac_noekeon_last_dummy(void* buffer, uint16_t size_b, void* key, uint16_t keysize_b, void* ctx){
+void omac_noekeon_last_dummy(void* ctx, const void* buffer, uint16_t size_b){
 	while(size_b>128){
-		omac_noekeon_next(buffer, key, ctx);
+		omac_noekeon_next(buffer, stat_key, ctx);
 		size_b -= 128;
 		buffer = (uint8_t*)buffer +16;
 	}
-	omac_noekeon_last(buffer, size_b, key, ctx);
+	omac_noekeon_last(buffer, size_b, stat_key, ctx);
 }
 
 void omac_noekeon_conv_dummy(void* buffer, void* ctx){