idk

olivierdeschacht/OpenCL/inc_luks_xts.cl

@@ -0,0 +1,11 @@
+DECLSPEC void xts_mul2 (u32 *in, u32 *out)
+{
+  const u32 c = in[3] >> 31;
+
+  out[3] = (in[3] << 1) | (in[2] >> 31);
+  out[2] = (in[2] << 1) | (in[1] >> 31);
+  out[1] = (in[1] << 1) | (in[0] >> 31);
+  out[0] = (in[0] << 1);
+
+  out[0] ^= c * 0x87;
+}