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test/ectest.c: add regression test for RT#4284.

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Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Andy Polyakov 2016-02-21 21:05:50 +01:00
parent 143ee099e9
commit 50e34aaba3
1 changed files with 15 additions and 0 deletions
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15
test/ectest.c
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@ -119,6 +119,8 @@ static void group_order_tests(EC_GROUP *group)
BIGNUM *n1, *n2, *order;
EC_POINT *P = EC_POINT_new(group);
EC_POINT *Q = EC_POINT_new(group);
EC_POINT *R = EC_POINT_new(group);
EC_POINT *S = EC_POINT_new(group);
BN_CTX *ctx = BN_CTX_new();
int i;
@ -198,6 +200,17 @@ static void group_order_tests(EC_GROUP *group)
/* Exercise EC_POINTs_mul, including corner cases. */
if (EC_POINT_is_at_infinity(group, P))
ABORT;
scalars[0] = scalars[1] = BN_value_one();
points[0] = points[1] = P;
if (!EC_POINTs_mul(group, R, NULL, 2, points, scalars, ctx))
ABORT;
if (!EC_POINT_dbl(group, S, points[0], ctx))
ABORT;
if (0 != EC_POINT_cmp(group, R, S, ctx))
ABORT;
scalars[0] = n1;
points[0] = Q; /* => infinity */
scalars[1] = n2;
@ -219,6 +232,8 @@ static void group_order_tests(EC_GROUP *group)
EC_POINT_free(P);
EC_POINT_free(Q);
EC_POINT_free(R);
EC_POINT_free(S);
BN_free(n1);
BN_free(n2);
BN_free(order);