zig

commit ab6ffa8a3c1e3fa802cacd970d3ed415ba25a85e (tree)
parent 08dfbee961b7705d6f9d03fc982ec808f370f64a
Author: Frank Denis <github@pureftpd.org>
Date:   Sat, 15 Aug 2020 21:00:22 +0200

Work around sqrtRatioM1() issue in release-safe mode

Diffstat:
M
lib/std/crypto/25519/ristretto255.zig
 | 
4
++--

1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/std/crypto/25519/ristretto255.zig b/lib/std/crypto/25519/ristretto255.zig
@@ -24,11 +24,11 @@ pub const Ristretto255 = struct {
         const has_f_root = f_root_check.isZero();
         const x_sqrtm1 = x.mul(Fe.sqrtm1); // x*sqrt(-1)
         x.cMov(x_sqrtm1, @boolToInt(has_p_root) | @boolToInt(has_f_root));
-        x = x.abs();
+        const xa = x.abs();
         if ((@boolToInt(has_m_root) | @boolToInt(has_p_root)) == 0) {
             return error.NoRoot;
         }
-        return x;
+        return xa;
     }
 
     fn rejectNonCanonical(s: [32]u8) !void {