From 3c159fc1a5a3e8528bc321c3b65b0503d7c034bf Mon Sep 17 00:00:00 2001 From: "Dr. Stephen Henson" Date: Mon, 24 Jan 2011 15:08:12 +0000 Subject: [PATCH] check EC public key isn't point at infinity --- crypto/ec/ec_key.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/crypto/ec/ec_key.c b/crypto/ec/ec_key.c index 12fb0e6d6d..522802c07a 100644 --- a/crypto/ec/ec_key.c +++ b/crypto/ec/ec_key.c @@ -304,7 +304,13 @@ int EC_KEY_check_key(const EC_KEY *eckey) ECerr(EC_F_EC_KEY_CHECK_KEY, ERR_R_PASSED_NULL_PARAMETER); return 0; } - + + if (EC_POINT_is_at_infinity(eckey->group, eckey->pub_key)) + { + ECerr(EC_F_EC_KEY_CHECK_KEY, EC_R_POINT_AT_INFINITY); + goto err; + } + if ((ctx = BN_CTX_new()) == NULL) goto err; if ((point = EC_POINT_new(eckey->group)) == NULL) -- 2.25.1