Rename HexParam_t -> data_t for consistent coding style
diff --git a/tests/suites/test_suite_pkcs1_v15.function b/tests/suites/test_suite_pkcs1_v15.function
index 9cf3b19..83f417c 100644
--- a/tests/suites/test_suite_pkcs1_v15.function
+++ b/tests/suites/test_suite_pkcs1_v15.function
@@ -11,8 +11,8 @@
 /* BEGIN_CASE */
 void pkcs1_rsaes_v15_encrypt( int mod, int radix_N, char * input_N,
                               int radix_E, char * input_E, int hash,
-                              HexParam_t * message_str, HexParam_t * rnd_buf,
-                              HexParam_t * result_hex_str, int result )
+                              data_t * message_str, data_t * rnd_buf,
+                              data_t * result_hex_str, int result )
 {
     unsigned char output[1000];
     mbedtls_rsa_context ctx;
@@ -50,8 +50,8 @@
 void pkcs1_rsaes_v15_decrypt( int mod, int radix_P, char * input_P,
                               int radix_Q, char * input_Q, int radix_N,
                               char * input_N, int radix_E, char * input_E,
-                              int hash, HexParam_t * result_hex_str,
-                              char * seed, HexParam_t * message_str,
+                              int hash, data_t * result_hex_str,
+                              char * seed, data_t * message_str,
                               int result )
 {
     unsigned char output[1000];
@@ -97,8 +97,8 @@
 void pkcs1_rsassa_v15_sign( int mod, int radix_P, char * input_P, int radix_Q,
                             char * input_Q, int radix_N, char * input_N,
                             int radix_E, char * input_E, int digest, int hash,
-                            HexParam_t * message_str, HexParam_t * rnd_buf,
-                            HexParam_t * result_hex_str, int result )
+                            data_t * message_str, data_t * rnd_buf,
+                            data_t * result_hex_str, int result )
 {
     unsigned char hash_result[1000];
     unsigned char output[1000];
@@ -147,8 +147,8 @@
 /* BEGIN_CASE */
 void pkcs1_rsassa_v15_verify( int mod, int radix_N, char * input_N,
                               int radix_E, char * input_E, int digest,
-                              int hash, HexParam_t * message_str, char * salt,
-                              HexParam_t * result_str, int result )
+                              int hash, data_t * message_str, char * salt,
+                              data_t * result_str, int result )
 {
     unsigned char hash_result[1000];
     mbedtls_rsa_context ctx;