Replaced system SQLite with SQLCipher to support encrypted database

Sources/DataLiteC/libtomcrypt/pk/ecc/ecc_sizes.c

@@ -0,0 +1,42 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+
+#include "tomcrypt_private.h"
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wconversion"
+#pragma clang diagnostic ignored "-Wshorten-64-to-32"
+
+/**
+  @file ecc_sizes.c
+  ECC Crypto, Tom St Denis
+*/
+
+#ifdef LTC_MECC
+
+void ecc_sizes(int *low, int *high)
+{
+  int i, size;
+  void *prime;
+
+  LTC_ARGCHKVD(low  != NULL);
+  LTC_ARGCHKVD(high != NULL);
+
+  *low = INT_MAX;
+  *high = 0;
+
+  if (ltc_mp_init(&prime) == CRYPT_OK) {
+    for (i = 0; ltc_ecc_curves[i].prime != NULL; i++) {
+       if (ltc_mp_read_radix(prime, ltc_ecc_curves[i].prime, 16) == CRYPT_OK) {
+         size = ltc_mp_unsigned_bin_size(prime);
+         if (size < *low)  *low  = size;
+         if (size > *high) *high = size;
+       }
+    }
+    ltc_mp_clear(prime);
+  }
+}
+
+#endif
+
+#pragma clang diagnostic pop