ccm128.c: fix Win32 compiler warning.

diff --git a/crypto/modes/ccm128.c b/crypto/modes/ccm128.c
index ad822c8fa8fb35bb24b771df8f8748519cbb24f9..f8746bbf154df110664d1c50dfce7fd70282ddef 100644 (file)
--- a/crypto/modes/ccm128.c
+++ b/crypto/modes/ccm128.c
@@ -116,7 +116,7 @@ void CRYPTO_ccm128_aad(CCM128_CONTEXT *ctx,
                ctx->cmac.c[1] ^= (u8)alen;
                i=2;
        }
-       else if (sizeof(alen)==8 && alen>=(size_t)1<<32) {
+       else if (sizeof(alen)==8 && alen>=(size_t)1<<(32%(sizeof(alen)*8))) {
                ctx->cmac.c[0] ^= 0xFF;
                ctx->cmac.c[1] ^= 0xFF;
                ctx->cmac.c[2] ^= (u8)(alen>>(56%(sizeof(alen)*8)));