From 9fbbdd73c58c29dc46cc314f7165e45e6d43fd60 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Sat, 21 Feb 2015 13:51:56 +0100 Subject: [PATCH] Avoid reading an unused byte after the buffer MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Other curves don't have this problem. Reviewed-by: Kurt Roeckx Reviewed-by: Emilia Käsper --- crypto/ec/ecp_nistp224.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/ec/ecp_nistp224.c b/crypto/ec/ecp_nistp224.c index ffb50d848c..a0c7bec5db 100644 --- a/crypto/ec/ecp_nistp224.c +++ b/crypto/ec/ecp_nistp224.c @@ -316,7 +316,7 @@ static void bin28_to_felem(felem out, const u8 in[28]) out[0] = *((const uint64_t *)(in)) & 0x00ffffffffffffff; out[1] = (*((const uint64_t *)(in + 7))) & 0x00ffffffffffffff; out[2] = (*((const uint64_t *)(in + 14))) & 0x00ffffffffffffff; - out[3] = (*((const uint64_t *)(in + 21))) & 0x00ffffffffffffff; + out[3] = (*((const uint64_t *)(in+20))) >> 8; } static void felem_to_bin28(u8 out[28], const felem in) -- 2.25.1