From 43ea9a16a0d66870855255b50291f0c464270ef6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Damir=20Jeli=C4=87?= <poljar@termina.org.uk>
Date: Thu, 14 Jan 2021 13:34:12 +0100
Subject: [PATCH] crypto: Use the chain method to get the sha hash of the
 content

---
 matrix_sdk_crypto/src/verification/sas/helpers.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/matrix_sdk_crypto/src/verification/sas/helpers.rs b/matrix_sdk_crypto/src/verification/sas/helpers.rs
index 248c3a28..617a9827 100644
--- a/matrix_sdk_crypto/src/verification/sas/helpers.rs
+++ b/matrix_sdk_crypto/src/verification/sas/helpers.rs
@@ -63,10 +63,12 @@ pub struct SasIds {
 /// interactive verification process.
 pub fn calculate_commitment(public_key: &str, content: impl Into<StartContent>) -> String {
     let content = content.into().canonical_json();
+    let content_string = content.to_string();
 
     encode(
         Sha256::new()
-            .chain(&format!("{}{}", public_key, content))
+            .chain(&public_key)
+            .chain(&content_string)
             .finalize(),
     )
 }