SKALE-2977 clean up

BLSCrypto.cpp

@@ -198,6 +198,9 @@ bool sign_aes(const char *_encryptedKeyHex, const char *_hashHex, size_t _t, siz
     strncpy(xStrArg, xStr->c_str(), BUF_LEN);
     strncpy(yStrArg, yStr->c_str(), BUF_LEN);
 
+    delete xStr;
+    delete yStr;
+
     size_t sz = 0;
 
     uint8_t encryptedKey[BUF_LEN];
@@ -206,8 +209,6 @@ bool sign_aes(const char *_encryptedKeyHex, const char *_hashHex, size_t _t, siz
 
     if (!result) {
         cerr << "Invalid hex encrypted key" << endl;
-        delete xStr;
-        delete yStr;
         BOOST_THROW_EXCEPTION(std::invalid_argument("Invalid hex encrypted key"));
     }
 
@@ -219,15 +220,11 @@ bool sign_aes(const char *_encryptedKeyHex, const char *_hashHex, size_t _t, siz
 
     if (status != SGX_SUCCESS) {
         cerr << "SGX enclave call to trustedBlsSignMessage failed with status:" << status << std::endl;
-        delete xStr;
-        delete yStr;
         BOOST_THROW_EXCEPTION(runtime_error("SGX enclave call to trustedBlsSignMessage failed"));
     }
 
     if (errStatus != 0) {
         cerr << "SGX enclave call to trustedBlsSignMessage failed with errStatus:" << errStatus << std::endl;
-        delete xStr;
-        delete yStr;
         BOOST_THROW_EXCEPTION(runtime_error("SGX enclave call to trustedBlsSignMessage failed"));
     }
 
@@ -240,9 +237,6 @@ bool sign_aes(const char *_encryptedKeyHex, const char *_hashHex, size_t _t, siz
 
     strncpy(_sig, sig.c_str(), BUF_LEN);
 
-    delete xStr;
-    delete yStr;
-
     return true;
 }
 

SGXWalletServer.cpp

@@ -236,13 +236,11 @@ SGXWalletServer::blsSignMessageHashImpl(const string &_keyShareName, const strin
         exception_ptr p = current_exception();
         printf("Exception %s \n", p.__cxa_exception_type()->name());
         result["status"] = -1;
-        result["errorMessage"] = "Read key share has thrown exception:";
+        result["errorMessage"] = "Read key share has thrown exception";
         return result;
     }
 
     try {
-        static std::mutex g_mtx;
-        std::lock_guard<std::mutex> lock(g_mtx);
         if (!bls_sign(value->c_str(), _messageHash.c_str(), t, n, _signerIndex, &signature.front())) {
             result["status"] = -1;
             result["errorMessage"] = "Could not sign";

secure_enclave/EnclaveCommon.h

@@ -43,8 +43,6 @@ 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, uint64_t size);
 
 EXTERNC void LOG_INFO(const char* msg);

secure_enclave/secure_enclave.c

@@ -1262,7 +1262,7 @@ void trustedDecryptKeyAES(int *errStatus, char *errString, uint8_t *encryptedPri
     }
 
     *errStatus = 0;
-    memcpy(errString, AES_key, 1024);
+    memcpy(errString, AES_key, BUF_LEN);
 }
 
 void trustedBlsSignMessageAES(int *errStatus, char *errString, uint8_t *encryptedPrivateKey,