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authoremboss <emboss@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-06-10 02:38:40 +0000
committeremboss <emboss@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-06-10 02:38:40 +0000
commit3ffd8a918ff2cfd555bf7e89329b275d1fe8ab12 (patch)
treee9679b7204940edcbe9f17abbc3aca514d6a1719 /ext/openssl
parent43759fc1ed8f10fff50b4239089d02c0fbe6895d (diff)
* ext/openssl/ossl_pkey_ec.c
test/openssl/test_pkey_ec.rb: Add support for EC_POINT_mul. Patch provided by Sambasiva Suda. Thanks! [ruby-core:44408][ruby-trunk - Feature #6310] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/openssl')
-rw-r--r--ext/openssl/ossl_pkey_ec.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/ext/openssl/ossl_pkey_ec.c b/ext/openssl/ossl_pkey_ec.c
index 63bb8200e6e..487fb1bac37 100644
--- a/ext/openssl/ossl_pkey_ec.c
+++ b/ext/openssl/ossl_pkey_ec.c
@@ -1470,6 +1470,79 @@ static VALUE ossl_ec_point_to_bn(VALUE self)
return bn_obj;
}
+/*
+ * call-seq:
+ * point.mul(bn) => point
+ * point.mul(bn, bn) => point
+ * point.mul([bn], [point]) => point
+ * point.mul([bn], [point], bn) => point
+ */
+static VALUE ossl_ec_point_mul(int argc, VALUE *argv, VALUE self)
+{
+ EC_POINT *point1, *point2;
+ const EC_GROUP *group;
+ VALUE group_v = rb_iv_get(self, "@group");
+ VALUE args[1] = {group_v};
+ VALUE bn_v1, bn_v2, r, points_v;
+ BIGNUM *bn1 = NULL, *bn2 = NULL;
+
+ Require_EC_POINT(self, point1);
+ SafeRequire_EC_GROUP(group_v, group);
+
+ r = rb_obj_alloc(cEC_POINT);
+ ossl_ec_point_initialize(1, args, r);
+ Require_EC_POINT(r, point2);
+
+ argc = rb_scan_args(argc, argv, "12", &bn_v1, &points_v, &bn_v2);
+
+ if (rb_obj_is_kind_of(bn_v1, cBN)) {
+ bn1 = GetBNPtr(bn_v1);
+ if (argc >= 2) {
+ bn2 = GetBNPtr(points_v);
+ }
+ if (EC_POINT_mul(group, point2, bn2, point1, bn1, ossl_bn_ctx) != 1)
+ ossl_raise(eEC_POINT, "Multiplication failed");
+ } else {
+ size_t i, points_len, bignums_len;
+ const EC_POINT **points;
+ const BIGNUM **bignums;
+
+ Check_Type(bn_v1, T_ARRAY);
+ bignums_len = RARRAY_LEN(bn_v1);
+ bignums = (const BIGNUM **)OPENSSL_malloc(bignums_len * sizeof(BIGNUM *));
+
+ for (i = 0; i < bignums_len; ++i) {
+ bignums[i] = GetBNPtr(rb_ary_entry(bn_v1, i));
+ }
+
+ if (!rb_obj_is_kind_of(points_v, rb_cArray)) {
+ OPENSSL_free(bignums);
+ rb_raise(rb_eTypeError, "Argument2 must be an array");
+ }
+
+ rb_ary_unshift(points_v, self);
+ points_len = RARRAY_LEN(points_v);
+ points = (const EC_POINT **)OPENSSL_malloc(points_len * sizeof(EC_POINT *));
+
+ for (i = 0; i < points_len; ++i) {
+ Get_EC_POINT(rb_ary_entry(points_v, i), points[i]);
+ }
+
+ if (argc >= 3) {
+ bn2 = GetBNPtr(bn_v2);
+ }
+ if (EC_POINTs_mul(group, point2, bn2, points_len, points, bignums, ossl_bn_ctx) != 1) {
+ OPENSSL_free(bignums);
+ OPENSSL_free(points);
+ ossl_raise(eEC_POINT, "Multiplication failed");
+ }
+ OPENSSL_free(bignums);
+ OPENSSL_free(points);
+ }
+
+ return r;
+}
+
static void no_copy(VALUE klass)
{
rb_undef_method(klass, "copy");
@@ -1591,6 +1664,7 @@ void Init_ossl_ec()
/* all the other methods */
rb_define_method(cEC_POINT, "to_bn", ossl_ec_point_to_bn, 0);
+ rb_define_method(cEC_POINT, "mul", ossl_ec_point_mul, -1);
no_copy(cEC);
no_copy(cEC_GROUP);