SKALE-3067-cleanup-sgx

secure_enclave/EnclaveCommon.cpp

@@ -38,13 +38,13 @@ using namespace std;
 
 thread_local uint8_t decryptedDkgPoly[DKG_BUFER_LENGTH];
 
-uint8_t* getThreadLocalDecryptedDkgPoly() {
-
+uint8_t *getThreadLocalDecryptedDkgPoly() {
     return decryptedDkgPoly;
 }
 
 
 string *stringFromKey(libff::alt_bn128_Fr *_key) {
+    try {
         mpz_t t;
         mpz_init(t);
 
@@ -56,9 +56,17 @@ string *stringFromKey(libff::alt_bn128_Fr *_key) {
         mpz_clear(t);
 
         return new string(tmp);
+    } catch (exception &e) {
+        LOG_ERROR(e.what());
+        return nullptr;
+    } catch (...) {
+        LOG_ERROR("Unknown throwable");
+        return nullptr;
+    }
 }
 
 string *stringFromFq(libff::alt_bn128_Fq *_fq) {
+    try {
         mpz_t t;
         mpz_init(t);
 
@@ -70,9 +78,18 @@ string *stringFromFq(libff::alt_bn128_Fq *_fq) {
         mpz_clear(t);
 
         return new string(tmp);
+    } catch (exception &e) {
+        LOG_ERROR(e.what());
+        return nullptr;
+    } catch (...) {
+        LOG_ERROR("Unknown throwable");
+        return nullptr;
+    }
 }
 
 string *stringFromG1(libff::alt_bn128_G1 *_g1) {
+
+    try {
         _g1->to_affine_coordinates();
 
         auto sX = stringFromFq(&_g1->X);
@@ -84,18 +101,36 @@ string *stringFromG1(libff::alt_bn128_G1 *_g1) {
         delete (sY);
 
         return sG1;
+
+    } catch (exception &e) {
+        LOG_ERROR(e.what());
+        return nullptr;
+    } catch (...) {
+        LOG_ERROR("Unknown throwable");
+        return nullptr;
+    }
+
 }
 
 libff::alt_bn128_Fr *keyFromString(const char *_keyStringHex) {
+    try {
         mpz_t skey;
         mpz_init(skey);
         mpz_set_str(skey, _keyStringHex, 16);
 
-    char skey_dec[mpz_sizeinbase (skey, 10) + 2];
+        char skey_dec[mpz_sizeinbase(skey, 10) + 2];
         mpz_get_str(skey_dec, 10, skey);
         mpz_clear(skey);
 
         return new libff::alt_bn128_Fr(skey_dec);
+
+    } catch (exception &e) {
+        LOG_ERROR(e.what());
+        return nullptr;
+    } catch (...) {
+        LOG_ERROR("Unknown throwable");
+        return nullptr;
+    }
 }
 
 int inited = 0;
@@ -108,11 +143,12 @@ void enclave_init() {
 }
 
 bool enclave_sign(const char *_keyString, const char *_hashXString, const char *_hashYString,
-          char* sig) {
+                  char *sig) {
+    try {
         auto key = keyFromString(_keyString);
 
         if (key == nullptr) {
-        throw exception();
+            throw invalid_argument("Null key");
         }
 
         libff::alt_bn128_Fq hashX(_hashXString);
@@ -136,9 +172,18 @@ bool enclave_sign(const char *_keyString, const char *_hashXString, const char *
         delete r;
 
         return true;
+
+    } catch (exception &e) {
+        LOG_ERROR(e.what());
+        return false;
+    } catch (...) {
+        LOG_ERROR("Unknown throwable");
+        return false;
+    }
+
 }
 
-void  carray2Hex(const unsigned char *d, int _len, char* _hexArray) {
+void carray2Hex(const unsigned char *d, int _len, char *_hexArray) {
     char hexval[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
                        '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
 
@@ -160,8 +205,8 @@ int char2int(char _input) {
     return -1;
 }
 
-bool hex2carray2(const char * _hex, uint64_t  *_bin_len,
-                 uint8_t* _bin, const int _max_length ) {
+bool hex2carray2(const char *_hex, uint64_t *_bin_len,
+                 uint8_t *_bin, const int _max_length) {
     int len = strnlen(_hex, _max_length);
 
     if (len == 0 && len % 2 == 1)
@@ -170,8 +215,8 @@ bool hex2carray2(const char * _hex, uint64_t  *_bin_len,
     *_bin_len = len / 2;
 
     for (int i = 0; i < len / 2; i++) {
-        int high = char2int((char)_hex[i * 2]);
-        int low = char2int((char)_hex[i * 2 + 1]);
+        int high = char2int((char) _hex[i * 2]);
+        int low = char2int((char) _hex[i * 2 + 1]);
 
         if (high < 0 || low < 0) {
             return false;
@@ -183,8 +228,8 @@ bool hex2carray2(const char * _hex, uint64_t  *_bin_len,
     return true;
 }
 
-bool hex2carray(const char * _hex, uint64_t  *_bin_len,
-                uint8_t* _bin ) {
+bool hex2carray(const char *_hex, uint64_t *_bin_len,
+                uint8_t *_bin) {
     int len = strnlen(_hex, 2 * BUF_LEN);
 
     if (len == 0 && len % 2 == 1)
@@ -193,8 +238,8 @@ bool hex2carray(const char * _hex, uint64_t  *_bin_len,
     *_bin_len = len / 2;
 
     for (int i = 0; i < len / 2; i++) {
-    int high = char2int((char)_hex[i * 2]);
-    int low = char2int((char)_hex[i * 2 + 1]);
+        int high = char2int((char) _hex[i * 2]);
+        int low = char2int((char) _hex[i * 2 + 1]);
 
         if (high < 0 || low < 0) {
             return false;
@@ -206,11 +251,13 @@ bool hex2carray(const char * _hex, uint64_t  *_bin_len,
     return true;
 }
 
-enum log_level {L_TRACE = 0, L_DEBUG = 1, L_INFO = 2, L_WARNING = 3,  L_ERROR = 4 };
+enum log_level {
+    L_TRACE = 0, L_DEBUG = 1, L_INFO = 2, L_WARNING = 3, L_ERROR = 4
+};
 
 uint32_t globalLogLevel_ = 2;
 
-void logMsg(log_level _level, const char* _msg) {
+void logMsg(log_level _level, const char *_msg) {
     if (_level < globalLogLevel_)
         return;
 
@@ -225,19 +272,19 @@ void logMsg(log_level _level, const char* _msg) {
 }
 
 
-EXTERNC void LOG_INFO(const char* _msg) {
+EXTERNC void LOG_INFO(const char *_msg) {
     logMsg(L_INFO, _msg);
 };
-EXTERNC void LOG_WARN(const char* _msg) {
+EXTERNC void LOG_WARN(const char *_msg) {
     logMsg(L_WARNING, _msg);
 };
 
-EXTERNC void LOG_ERROR(const char* _msg) {
+EXTERNC void LOG_ERROR(const char *_msg) {
     logMsg(L_ERROR, _msg);
 };
-EXTERNC void LOG_DEBUG(const char* _msg) {
+EXTERNC void LOG_DEBUG(const char *_msg) {
     logMsg(L_DEBUG, _msg);
 };
-EXTERNC void LOG_TRACE(const char* _msg) {
+EXTERNC void LOG_TRACE(const char *_msg) {
     logMsg(L_TRACE, _msg);
 };