SKALE-2895-fix-build-and-docs

secure_enclave/EnclaveCommon.h

@@ -43,6 +43,10 @@ EXTERNC bool hex2carray2(const char * _hex, uint64_t  *_bin_len,
                          uint8_t* _bin, const int _max_length );
 EXTERNC void enclave_init();
 
+
+
+void get_global_random(unsigned char* _randBuff);
+
 EXTERNC void LOG_INFO(char* msg);
 EXTERNC void LOG_WARN(char* _msg);
 EXTERNC void LOG_ERROR(char* _msg);
@@ -51,4 +55,7 @@ EXTERNC void LOG_TRACE(char* _msg);
 
 extern uint32_t globalLogLevel_;
 
+extern unsigned char* globalRandom;
+
+
 #endif //SGXWALLET_ENCLAVECOMMON_H

secure_enclave/Signature.c

@@ -103,15 +103,15 @@ void signature_sign(signature sig, mpz_t message, mpz_t private_key, domain_para
 
     unsigned char *rand_char = (unsigned char *) calloc(32,1);
 
-    sgx_read_rand(rand_char, 32);
+    get_global_random(rand_char);
 
     gmp_randstate_t r_state;
 
     signature_sign_start:
 
     //Set k
-    sgx_read_rand(rand_char, 32);
-;
+    get_global_random(rand_char);
+
     mpz_import(seed, 32, 1, sizeof(rand_char[0]), 0, 0, rand_char);
 
     mpz_mod(k, seed, curve->p);

secure_enclave/secure_enclave.c

@@ -69,6 +69,8 @@ void *reallocate_function(void *, size_t, size_t);
 
 void free_function(void *, size_t);
 
+unsigned char* globalRandom;
+
 void trustedEnclaveInit(uint32_t _logLevel) {
     LOG_DEBUG (__FUNCTION__);
 
@@ -80,6 +82,11 @@ void trustedEnclaveInit(uint32_t _logLevel) {
     mp_get_memory_functions(NULL, &gmp_realloc_func, &gmp_free_func);
     mp_set_memory_functions(NULL, oc_realloc_func, oc_free_func);
 
+
+    globalRandom = (unsigned char *) calloc(32,1);
+
+    sgx_read_rand(globalRandom, 32);
+
     enclave_init();
 
     LOG_DEBUG("SUCCESS");
@@ -121,6 +128,11 @@ void *reallocate_function(void *ptr, size_t osize, size_t nsize) {
     return (void *) nptr;
 }
 
+void get_global_random(unsigned char* _randBuff) {
+    memcpy(_randBuff, globalRandom, 32);
+}
+
+
 void trustedEMpzAdd(mpz_t *c_un, mpz_t *a_un, mpz_t *b_un) {}
 
 void trustedEMpzMul(mpz_t *c_un, mpz_t *a_un, mpz_t *b_un) {}