hcrypto: import libtommath v1.2.0

lib/hcrypto/libtommath/demo/shared.c

@@ -0,0 +1,42 @@
+#include "shared.h"
+
+void ndraw(mp_int *a, const char *name)
+{
+   char *buf = NULL;
+   int size;
+
+   mp_radix_size(a, 10, &size);
+   buf = (char *)malloc((size_t) size);
+   if (buf == NULL) {
+      fprintf(stderr, "\nndraw: malloc(%d) failed\n", size);
+      exit(EXIT_FAILURE);
+   }
+
+   printf("%s: ", name);
+   mp_to_decimal(a, buf, (size_t) size);
+   printf("%s\n", buf);
+   mp_to_hex(a, buf, (size_t) size);
+   printf("0x%s\n", buf);
+
+   free(buf);
+}
+
+void print_header(void)
+{
+#ifdef MP_8BIT
+   printf("Digit size 8 Bit \n");
+#endif
+#ifdef MP_16BIT
+   printf("Digit size 16 Bit \n");
+#endif
+#ifdef MP_32BIT
+   printf("Digit size 32 Bit \n");
+#endif
+#ifdef MP_64BIT
+   printf("Digit size 64 Bit \n");
+#endif
+   printf("Size of mp_digit: %u\n", (unsigned int)sizeof(mp_digit));
+   printf("Size of mp_word: %u\n", (unsigned int)sizeof(mp_word));
+   printf("MP_DIGIT_BIT: %d\n", MP_DIGIT_BIT);
+   printf("MP_PREC: %d\n", MP_PREC);
+}