add testvectors from [1]

[1] https://misc.daniel-marschall.de/asn.1/oid_facts.html

tests/der_test.c

@@ -17,6 +17,10 @@ int der_test(void)
 
 #else
 
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+
 static const unsigned char _der_tests_stinky_root_cert[] =
    "MIIFETCCA/mgAwIBAgIQbv53JNmv518t5lkCHE272jANBgkqhkiG9w0BAQUFADCB"
    "lTELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2Ug"
@@ -1306,6 +1310,68 @@ static void der_Xcode_test(void)
    mp_clear(mpinteger);
 }
 
+static off_t fsize(const char *filename)
+{
+   struct stat st;
+
+   if (stat(filename, &st) == 0) return st.st_size;
+
+   return -1;
+}
+
+static void der_asn1_test(void)
+{
+   DIR *d = opendir("tests/asn1");
+   struct dirent *de;
+   char fname[PATH_MAX];
+   void* buf = NULL;
+   FILE *f = NULL;
+   off_t fsz;
+   unsigned long sz;
+   ltc_asn1_list *list;
+   int err;
+   if (d == NULL)
+      return;
+   while((de = readdir(d)) != NULL) {
+      fname[0] = '\0';
+      if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0)
+         continue;
+      strcat(fname, "tests/asn1/");
+      strcat(fname, de->d_name);
+      fsz = fsize(fname);
+      if (fsz == -1)
+         break;
+#if defined(LTC_TEST_DBG) && LTC_TEST_DBG > 1
+      fprintf(stderr, "Try to decode %s\n", fname);
+#endif
+      f = fopen(fname, "rb");
+      sz = fsz;
+      buf = XMALLOC(fsz);
+      if (fread(buf, 1, sz, f) != sz)
+         break;
+
+      if ((err = der_decode_sequence_flexi(buf, &sz, &list)) == CRYPT_OK) {
+#ifdef LTC_DER_TESTS_PRINT_FLEXI
+         fprintf(stderr, "\n\n");
+         _der_tests_print_flexi(list, 0);
+         fprintf(stderr, "\n\n");
+#endif
+         der_sequence_free(list);
+      } else {
+#if defined(LTC_TEST_DBG)
+         fprintf(stderr, "Could not decode %s: %s\n\n", fname, error_to_string(err));
+#endif
+      }
+      XFREE(buf);
+      buf = NULL;
+      fclose(f);
+      f = NULL;
+   }
+   if (buf != NULL) XFREE(buf);
+   if (f != NULL) fclose(f);
+   closedir(d);
+}
+
 
 static void _der_regression_test(void)
 {
@@ -1463,6 +1529,8 @@ int der_test(void)
 
    der_Xcode_test();
 
+   der_asn1_test();
+
    der_custom_test();
 
    _der_regression_test();

tests/rsa_test.c

@@ -10,6 +10,10 @@
 
 #if defined(LTC_MRSA)
 
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <dirent.h>
+
 #define RSA_MSGSIZE 78
 
 /* These are test keys [see file test.key] that I use to test my import/export against */
@@ -343,6 +347,76 @@ static int _rsa_issue_301(int prng_idx)
    return CRYPT_OK;
 }
 
+static off_t fsize(const char *filename)
+{
+   struct stat st;
+
+   if (stat(filename, &st) == 0) return st.st_size;
+
+   return -1;
+}
+
+static int _rsa_size_test(void)
+{
+   DIR *d = opendir("tests/rsa");
+   struct dirent *de;
+   char fname[PATH_MAX];
+   void* buf = NULL;
+   FILE *f = NULL;
+   off_t fsz;
+   unsigned long sz;
+   int err = CRYPT_FILE_NOTFOUND;
+   rsa_key k;
+   if (d == NULL)
+      return CRYPT_FILE_NOTFOUND;
+   while((de = readdir(d)) != NULL) {
+      fname[0] = '\0';
+      if (strcmp(de->d_name, ".") == 0 || strcmp(de->d_name, "..") == 0)
+         continue;
+      strcat(fname, "tests/rsa/");
+      strcat(fname, de->d_name);
+      fsz = fsize(fname);
+      if (fsz == -1)
+         break;
+      /* here we use the filesize as indicator for the rsa size
+       * that would fail to import for tfm because it's fixed-size
+       */
+      if ((strcmp(ltc_mp.name, "TomsFastMath") == 0) && (fsz > 2048)) {
+#if defined(LTC_TEST_DBG) && LTC_TEST_DBG > 1
+         fprintf(stderr, "TomsFastMath skip: %s\n", fname);
+#endif
+         continue;
+      }
+#if defined(LTC_TEST_DBG) && LTC_TEST_DBG > 1
+      fprintf(stderr, "Try to import %s\n", fname);
+#endif
+      f = fopen(fname, "rb");
+      sz = fsz;
+      buf = XMALLOC(fsz);
+      if (fread(buf, 1, sz, f) != sz) {
+         err = CRYPT_ERROR;
+         break;
+      }
+
+      if ((err = rsa_import_x509(buf, sz, &k)) == CRYPT_OK) {
+         rsa_free(&k);
+      } else {
+#if defined(LTC_TEST_DBG)
+         fprintf(stderr, "Could not import RSA key of %s: %s\n\n", fname, error_to_string(err));
+#endif
+         break;
+      }
+      XFREE(buf);
+      buf = NULL;
+      fclose(f);
+      f = NULL;
+   }
+   if (buf != NULL) XFREE(buf);
+   if (f != NULL) fclose(f);
+   closedir(d);
+   return err;
+}
+
 int rsa_test(void)
 {
    unsigned char in[1024], out[1024], tmp[3072];
@@ -368,6 +442,8 @@ int rsa_test(void)
       return 1;
    }
 
+   DO(_rsa_size_test());
+
    DO(_rsa_issue_301(prng_idx));
 
    /* make 10 random key */