From: Bodo Möller <bodo@openssl.org>
Date: Fri, 22 Nov 2002 09:25:35 +0000 (+0000)
Subject: add a comment
X-Git-Tag: OpenSSL_0_9_6h~18^2~7
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=922fa76e26ece9566977f73fe2e21d38a9b036ad;p=oweals%2Fopenssl.git

add a comment
---

diff --git a/crypto/ec/ecp_smpl.c b/crypto/ec/ecp_smpl.c
index 7325abf520..267134af4b 100644
--- a/crypto/ec/ecp_smpl.c
+++ b/crypto/ec/ecp_smpl.c
@@ -112,6 +112,20 @@ const EC_METHOD *EC_GFp_simple_method(void)
 	}
 
 
+/* Most method functions in this file are designed to work with
+ * non-trivial representations of field elements if necessary
+ * (see ecp_mont.c): while standard modular addition and subtraction
+ * are used, the field_mul and field_sqr methods will be used for
+ * multiplication, and field_encode and field_decode (if defined)
+ * will be used for converting between representations.
+
+ * Functions ec_GFp_simple_points_make_affine() and
+ * ec_GFp_simple_point_get_affine_coordinates() specifically assume
+ * that if a non-trivial representation is used, it is a Montgomery
+ * representation (i.e. 'encoding' means multiplying by some factor R).
+ */
+
+
 int ec_GFp_simple_group_init(EC_GROUP *group)
 	{
 	BN_init(&group->field);