Add signature providers

Requires: common-ci-configuration!75 (merged)

core/foundation.cpp

@@ -271,34 +271,42 @@ private_key_data foundation::cpp_generate_private_key(const std::string& account
 
 std::string foundation::cpp_convert_raw_private_key_to_wif(const std::string& hexData)
 {
-  FC_ASSERT(hexData.size() == 64 && "Expected hex string pointing 32 byte buffer");
+  return cpp::safe_exception_wrapper(
+    [&]() -> std::string {
+    FC_ASSERT(hexData.size() == 64 && "Expected hex string pointing 32 byte buffer");
 
-  fc::sha256 sharedSecret(hexData);
+    fc::sha256 sharedSecret(hexData);
 
-  return fc::ecc::private_key::regenerate(sharedSecret).key_to_wif();
+    return fc::ecc::private_key::regenerate(sharedSecret).key_to_wif();
+    }
+  );
 }
 
 std::string foundation::cpp_convert_raw_public_key_to_wif(const std::string& hexData)
 {
-  if(hexData.size() == 2 * sizeof(fc::ecc::public_key_data))
-  {
-    /// compressed form
-    fc::ecc::public_key_data keyData;
-    detail::convert_from_hex(hexData, keyData);
+  return cpp::safe_exception_wrapper(
+    [&]() -> std::string {
+      if(hexData.size() == 2 * sizeof(fc::ecc::public_key_data))
+      {
+        /// compressed form
+        fc::ecc::public_key_data keyData;
+        detail::convert_from_hex(hexData, keyData);
 
-    return fc::ecc::public_key::to_base58_with_prefix(keyData, HIVE_ADDRESS_PREFIX);
+        return fc::ecc::public_key::to_base58_with_prefix(keyData, HIVE_ADDRESS_PREFIX);
 
-  }
-  else
-  {
-    FC_ASSERT(hexData.size() == 2 * sizeof(fc::ecc::public_key_point_data), "Invalid size of raw public key buffer: ${s}", ("s", (hexData.size())));
-    /// uncompressed form
-    fc::ecc::public_key_point_data keyData;
-    detail::convert_from_hex(hexData, keyData);
+      }
+      else
+      {
+        FC_ASSERT(hexData.size() == 2 * sizeof(fc::ecc::public_key_point_data), "Invalid size of raw public key buffer: ${s}", ("s", (hexData.size())));
+        /// uncompressed form
+        fc::ecc::public_key_point_data keyData;
+        detail::convert_from_hex(hexData, keyData);
 
-    fc::ecc::public_key key(keyData);
-    return key.to_base58_with_prefix(HIVE_ADDRESS_PREFIX);
-  }
+        fc::ecc::public_key key(keyData);
+        return key.to_base58_with_prefix(HIVE_ADDRESS_PREFIX);
+      }
+    }
+  );
 }
 
 brain_key_data foundation::cpp_suggest_brain_key()