From d19bdb642e3c9f4c0bc751a913281f3a45709d56 Mon Sep 17 00:00:00 2001
From: Anton Gavrilov <AntonE.Gavrilov@gmail.com>
Date: Thu, 6 Dec 2018 11:02:15 +0100
Subject: [PATCH] Sort the storage for private state (#10018)

---
 ethcore/private-tx/src/lib.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/ethcore/private-tx/src/lib.rs b/ethcore/private-tx/src/lib.rs
index 5e480b7ed..5f7b5cde3 100644
--- a/ethcore/private-tx/src/lib.rs
+++ b/ethcore/private-tx/src/lib.rs
@@ -68,7 +68,7 @@ pub use messages::{PrivateTransaction, SignedPrivateTransaction};
 pub use error::{Error, ErrorKind};
 
 use std::sync::{Arc, Weak};
-use std::collections::{HashMap, HashSet};
+use std::collections::{HashMap, HashSet, BTreeMap};
 use std::time::Duration;
 use ethereum_types::{H128, H256, U256, Address};
 use hash::keccak;
@@ -474,7 +474,9 @@ impl Provider where {
 
 	fn snapshot_from_storage(storage: &HashMap<H256, H256>) -> Bytes {
 		let mut raw = Vec::with_capacity(storage.len() * 64);
-		for (key, value) in storage {
+		// Sort the storage to guarantee the order for all parties
+		let sorted_storage: BTreeMap<&H256, &H256> = storage.iter().collect();
+		for (key, value) in sorted_storage {
 			raw.extend_from_slice(key);
 			raw.extend_from_slice(value);
 		};