Promote hash/siphash to crypto/siphash

SipHash *is* a cryptographic function, with a 128-bit security level.

However, it is not a regular hash function: a secret key is required,
and knowledge of that key allows collisions to be quickly computed offline.

SipHash is therefore more suitable to be used as a MAC.

The same API as other MACs was implemented in addition to functions directly
returning an integer.

The benchmarks have been updated accordingly.

No changes to the SipHash implementation itself.

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/std/hash.zig b/lib/std/hash.zig
index 1cc078959c..7bac378316 100644
--- a/lib/std/hash.zig
+++ b/lib/std/hash.zig
@@ -20,7 +20,7 @@ pub const Fnv1a_32 = fnv.Fnv1a_32;
 pub const Fnv1a_64 = fnv.Fnv1a_64;
 pub const Fnv1a_128 = fnv.Fnv1a_128;
 
-const siphash = @import("hash/siphash.zig");
+const siphash = @import("crypto/siphash.zig");
 pub const SipHash64 = siphash.SipHash64;
 pub const SipHash128 = siphash.SipHash128;
 
@@ -42,7 +42,6 @@ test "hash" {
     _ = @import("hash/auto_hash.zig");
     _ = @import("hash/crc.zig");
     _ = @import("hash/fnv.zig");
-    _ = @import("hash/siphash.zig");
     _ = @import("hash/murmur.zig");
     _ = @import("hash/cityhash.zig");
     _ = @import("hash/wyhash.zig");