Add EC_GROUP_order_bits, EC_GROUP_get0_order and EC_GROUP_get0_cofactor
New functions to return internal pointer for order and cofactor. This
avoids the need to allocate a new BIGNUM which to copy the value to.
Simplify code to use new functions.
Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/doc/crypto/EC_GROUP_copy.pod b/doc/crypto/EC_GROUP_copy.pod
index 837995b..938092e 100644
--- a/doc/crypto/EC_GROUP_copy.pod
+++ b/doc/crypto/EC_GROUP_copy.pod
@@ -18,7 +18,10 @@
const EC_POINT *EC_GROUP_get0_generator(const EC_GROUP *group);
int EC_GROUP_get_order(const EC_GROUP *group, BIGNUM *order, BN_CTX *ctx);
+ const BIGNUM *EC_GROUP_get0_order(const EC_GROUP *group);
+ const BIGNUM *EC_GROUP_order_bits(const EC_GROUP *group);
int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx);
+ const BIGNUM *EC_GROUP_get0_cofactor(const EC_GROUP *group);
void EC_GROUP_set_curve_name(EC_GROUP *group, int nid);
int EC_GROUP_get_curve_name(const EC_GROUP *group);
@@ -162,6 +165,10 @@
and EC_GROUP_get_degree return the order, cofactor, curve name (NID), ASN1 flag, point_conversion_form and degree for the
specified curve respectively. If there is no curve name associated with a curve then EC_GROUP_get_curve_name will return 0.
+EC_GROUP_get0_order() returns an internal pointer to the group order.
+EC_GROUP_get_order_bits() returns the number of bits in the group order.
+EC_GROUP_get0_cofactor() returns an internal pointer to the group cofactor.
+
EC_GROUP_get0_seed returns a pointer to the seed that was used to generate the parameter b, or NULL if the seed is not
specified. EC_GROUP_get_seed_len returns the length of the seed or 0 if the seed is not specified.
