Added gmp

secure_enclave/BLSUtils.cpp

@@ -33,8 +33,10 @@ libff::alt_bn128_Fr* keyFromString(std::string& _keyString) {
 
 
 
-void import_key(const char* _keyString) {
+void import_key(const char* _keyString, char* encryptedKey, uint64_t bufLen) {
 
+    if (encryptedKey == nullptr && bufLen < 100)
+      throw std::exception();
 
     if (_keyString == nullptr)
         throw std::exception();
@@ -54,4 +56,13 @@ void import_key(const char* _keyString) {
     if (s1->compare(*s2) != 0)
         throw std::exception();
 
+
+  if (s2->size() == 0)
+    throw std::exception();
+
+    if (s2->size() >= 100)
+      throw std::exception();
+
+    strncpy(encryptedKey, s2->c_str(), 100);
+
 }

secure_enclave/BLSUtils.h

@@ -13,7 +13,7 @@
 #define EXTERNC
 #endif
 
-EXTERNC void import_key(const char* _keyString);
+EXTERNC void import_key(const char* _keyString, char* encryptedKey, uint64_t bufLen);
 
 
 #endif //SGXD_BLSUTILS_H

secure_enclave/secure_enclave.c

@@ -109,12 +109,7 @@ void e_mpf_div(mpf_t *c_un, mpf_t *a_un, mpf_t *b_un) {
 
 }
 
-/* Use the Chudnovsky equation to rapidly estimate pi */
 
-#define DIGITS_PER_ITERATION 14.1816 /* Roughly */
-
-mpz_t c3, c4, c5;
-int pi_init = 0;
 
 void encrypt_key(int *err_status, char* key, char* encrypted_key) {
 
@@ -123,7 +118,7 @@ void encrypt_key(int *err_status, char* key, char* encrypted_key) {
   if (strnlen(key) == 100)
     return;
 
-  import_key(key);
+  import_key(key, encrypted_key, 100);
 
   *err_status = 0;
 }

sgxd.c

@@ -136,6 +136,8 @@ int main (int argc, char *argv[])
 
 	gmp_printf("Encrypt key completed with status: %d \n", err_status);
 
+        gmp_printf("Result: %s \n", encryptedKey);
+
 	return 0;
 }