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authorAndy Polyakov <appro@openssl.org>2015-02-21 13:51:56 +0100
committerKurt Roeckx <kurt@roeckx.be>2015-03-14 18:31:54 +0100
commiteadc81e7dd3fde473a9e38a57b4c29cf6b699110 (patch)
tree6654f78464cad0548a9ffd31a574365a10933877
parenta2fcab9978a0905c4286051993da63329fda8a19 (diff)
downloadopenssl-new-eadc81e7dd3fde473a9e38a57b4c29cf6b699110.tar.gz
Avoid reading an unused byte after the buffer
Other curves don't have this problem. Reviewed-by: Kurt Roeckx <kurt@roeckx.be> Reviewed-by: Emilia Käsper <emilia@openssl.org> (cherry picked from commit 9fbbdd73c58c29dc46cc314f7165e45e6d43fd60)
-rw-r--r--crypto/ec/ecp_nistp224.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/ec/ecp_nistp224.c b/crypto/ec/ecp_nistp224.c
index 9a59ef0c19..ed09f97ade 100644
--- a/crypto/ec/ecp_nistp224.c
+++ b/crypto/ec/ecp_nistp224.c
@@ -321,7 +321,7 @@ 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)