From 6e6f7e8555ad488a8b4d67ba640ddad933aa2654 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Tue, 23 Feb 2021 18:14:37 +0100
Subject: [PATCH] Replace some checksums where it makes sense

---
 src/rpc/membership.rs       | 2 +-
 src/table/table_fullcopy.rs | 3 ++-
 src/table/table_sync.rs     | 8 ++++----
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/src/rpc/membership.rs b/src/rpc/membership.rs
index 2d3b37a2..783f6eb8 100644
--- a/src/rpc/membership.rs
+++ b/src/rpc/membership.rs
@@ -141,7 +141,7 @@ impl Status {
 			writeln!(&mut nodes_txt, "{} {}", hex::encode(&id), status.addr).unwrap();
 		}
 		debug!("END --");
-		self.hash = sha256sum(nodes_txt.as_bytes());
+		self.hash = blake2sum(nodes_txt.as_bytes());
 	}
 }
 
diff --git a/src/table/table_fullcopy.rs b/src/table/table_fullcopy.rs
index e6f2c5fc..64ac89ee 100644
--- a/src/table/table_fullcopy.rs
+++ b/src/table/table_fullcopy.rs
@@ -44,7 +44,7 @@ impl TableFullReplication {
 
 		let mut nodes = vec![];
 		for (node, _) in ring.config.members.iter() {
-			let node_ranking = sha256sum(&[node.as_slice(), my_id.as_slice()].concat());
+			let node_ranking = fasthash(&[node.as_slice(), my_id.as_slice()].concat());
 			nodes.push((*node, node_ranking));
 		}
 		nodes.sort_by(|(_, rank1), (_, rank2)| rank1.cmp(rank2));
@@ -54,6 +54,7 @@ impl TableFullReplication {
 			.filter(|node| *node != my_id)
 			.take(self.write_factor)
 			.collect::<Vec<_>>();
+
 		neighbors.push(my_id);
 		self.neighbors.swap(Some(Arc::new(Neighbors {
 			ring,
diff --git a/src/table/table_sync.rs b/src/table/table_sync.rs
index 86878e35..073540d4 100644
--- a/src/table/table_sync.rs
+++ b/src/table/table_sync.rs
@@ -322,7 +322,7 @@ where
 				.range(range.begin.clone()..range.end.clone())
 			{
 				let (key, value) = item?;
-				let key_hash = sha256sum(&key[..]);
+				let key_hash = blake2sum(&key[..]);
 				if children.len() > 0
 					&& key_hash.as_slice()[0..range.level]
 						.iter()
@@ -340,7 +340,7 @@ where
 					end: vec![],
 					level: 0,
 				};
-				children.push((item_range, sha256sum(&value[..])));
+				children.push((item_range, blake2sum(&value[..])));
 			}
 			Ok(RangeChecksum {
 				bounds: range.clone(),
@@ -378,7 +378,7 @@ where
 				}
 				let found_limit = sub_ck.found_limit.unwrap();
 
-				let actual_limit_hash = sha256sum(&found_limit[..]);
+				let actual_limit_hash = blake2sum(&found_limit[..]);
 				if actual_limit_hash.as_slice()[0..range.level]
 					.iter()
 					.all(|x| *x == 0u8)
@@ -426,7 +426,7 @@ where
 			);
 
 			let hash = if v.children.len() > 0 {
-				Some(sha256sum(&rmp_to_vec_all_named(&v)?[..]))
+				Some(blake2sum(&rmp_to_vec_all_named(&v)?[..]))
 			} else {
 				None
 			};