Merge pull request #1469 from oberien/patch-1

By default, HashMap does *not* use a cryptographically secure hashing function
rust-lang · Sep 17, 2018 · 857629a · 857629a
2 parents cff0930 + 9d800ad
commit 857629a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/2018-edition/src/ch08-03-hash-maps.md b/2018-edition/src/ch08-03-hash-maps.md
@@ -261,7 +261,7 @@ loop, so all of these changes are safe and allowed by the borrowing rules.
 
 ### Hashing Functions
 
-By default, `HashMap` uses a cryptographically secure hashing function that can
+By default, `HashMap` uses a "cryptographically strong"[^siphash] hashing function that can
 provide resistance to Denial of Service (DoS) attacks. This is not the fastest
 hashing algorithm available, but the trade-off for better security that comes
 with the drop in performance is worth it. If you profile your code and find
@@ -273,6 +273,8 @@ hasher from scratch; [crates.io](https://crates.io) has libraries shared by
 other Rust users that provide hashers implementing many common hashing
 algorithms.
 
+[^siphash]: [https://www.131002.net/siphash/siphash.pdf](https://www.131002.net/siphash/siphash.pdf)
+
 ## Summary
 
 Vectors, strings, and hash maps will provide a large amount of functionality