From 0bed4fb384f2e4d0f33307f63e9d3a1f023438e4 Mon Sep 17 00:00:00 2001
From: IntegratedQuantum <jahe788@gmail.com>
Date: Fri, 13 Feb 2026 16:54:10 +0100
Subject: [PATCH] crypto: Allow arbitrary types for secureZeroes

also removed some related ptrCasts
---
 lib/std/crypto.zig               | 2 +-
 lib/std/crypto/ghash_polyval.zig | 2 +-
 lib/std/crypto/poly1305.zig      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/std/crypto.zig b/lib/std/crypto.zig
index 7833a31237..d020d61e14 100644
--- a/lib/std/crypto.zig
+++ b/lib/std/crypto.zig
@@ -412,7 +412,7 @@ test "issue #4532: no index out of bounds" {
 /// Sets a slice to zeroes.
 /// Prevents the store from being optimized out.
 pub fn secureZero(comptime T: type, s: []volatile T) void {
-    @memset(s, 0);
+    @memset(s, std.mem.zeroes(T));
 }
 
 test secureZero {
diff --git a/lib/std/crypto/ghash_polyval.zig b/lib/std/crypto/ghash_polyval.zig
index 45b2beb91b..8e33eb8075 100644
--- a/lib/std/crypto/ghash_polyval.zig
+++ b/lib/std/crypto/ghash_polyval.zig
@@ -402,7 +402,7 @@ fn Hash(comptime endian: std.builtin.Endian, comptime shift_key: bool) type {
             st.pad();
             mem.writeInt(u128, out[0..16], st.acc, endian);
 
-            std.crypto.secureZero(u8, @as([*]u8, @ptrCast(st))[0..@sizeOf(Self)]);
+            std.crypto.secureZero(Self, st[0..1]);
         }
 
         /// Compute the GHASH of a message.
diff --git a/lib/std/crypto/poly1305.zig b/lib/std/crypto/poly1305.zig
index 5bf5a57428..3d6e4d89c3 100644
--- a/lib/std/crypto/poly1305.zig
+++ b/lib/std/crypto/poly1305.zig
@@ -184,7 +184,7 @@ pub const Poly1305 = struct {
         mem.writeInt(u64, out[0..8], st.h[0], .little);
         mem.writeInt(u64, out[8..16], st.h[1], .little);
 
-        std.crypto.secureZero(u8, @as([*]u8, @ptrCast(st))[0..@sizeOf(Poly1305)]);
+        std.crypto.secureZero(Poly1305, st[0..1]);
     }
 
     pub fn create(out: *[mac_length]u8, msg: []const u8, key: *const [key_length]u8) void {