ripple/fossil: use bao to one-shot verify hashes

Change-Id: I77ace8ee9f69ccb92afaa0a41d69538d28f11583

1 files changed, 6 insertions, 5 deletions

diff --git a/ripple/fossil/src/lib.rs b/ripple/fossil/src/lib.rs
index 3492789..9e380f2 100644
--- a/ripple/fossil/src/lib.rs
+++ b/ripple/fossil/src/lib.rs
@@ -7,7 +7,7 @@ use {
 	std::{
 		collections::BTreeMap,
 		fs,
-		io::{self, BufRead, Read},
+		io::{self, BufRead, Read, Write},
 		os::unix::fs::PermissionsExt,
 		path::Path,
 	},
@@ -107,10 +107,11 @@ impl Store {
 		let mut buffer = Vec::new();
 		self.raw_blob(ident).read_to_end(&mut buffer).unwrap();
 
-		let computed_ident = {
-			let mut h = blake3::Hasher::new();
-			h.update_rayon(&buffer);
-			h.finalize()
+		let mut outboard = Vec::new();
+		let computed_ident: blake3::Hash = {
+			let mut encoder = bao::encode::Encoder::new_outboard(io::Cursor::new(&mut outboard));
+			encoder.write_all(&buffer).unwrap();
+			encoder.finalize().unwrap()
 		};
 
 		if computed_ident != ident {