在线文档教程
Ruby 2.4
OpenSSL

OpenSSL::PKey::EC::Group

class OpenSSL::PKey::EC::Group

父类:Object

公共类方法

OpenSSL::PKey::EC::Group.new(ec_group) 显示源

OpenSSL::PKey::EC::Group.new(pem_or_der_encoded)

OpenSSL::PKey::EC::Group.new(ec_method)

OpenSSL::PKey::EC::Group.new(:GFp, bignum_p, bignum_a, bignum_b)

OpenSSL::PKey::EC::Group.new(:GF2m, bignum_p, bignum_a, bignum_b)

创建一个新的EC :: Group对象。

ec_method是代表EC_METHOD的符号。目前支持以下内容:

  • :GFp_simple

  • :GFp_mont

  • :GFp_nist

  • :GF2m_simple

如果第一个参数是:GFp或:GF2m,则创建一个具有给定参数的新曲线。

static VALUE ossl_ec_group_initialize(int argc, VALUE *argv, VALUE self) { VALUE arg1, arg2, arg3, arg4; EC_GROUP *group; TypedData_Get_Struct(self, EC_GROUP, &ossl_ec_group_type, group if (group) ossl_raise(rb_eRuntimeError, "EC_GROUP is already initialized" switch (rb_scan_args(argc, argv, "13", &arg1, &arg2, &arg3, &arg4)) { case 1: if (SYMBOL_P(arg1)) { const EC_METHOD *method = NULL; ID id = SYM2ID(arg1 if (id == s_GFp_simple) { method = EC_GFp_simple_method( } else if (id == s_GFp_mont) { method = EC_GFp_mont_method( } else if (id == s_GFp_nist) { method = EC_GFp_nist_method( #if !defined(OPENSSL_NO_EC2M) } else if (id == s_GF2m_simple) { method = EC_GF2m_simple_method( #endif } if (method) { if ((group = EC_GROUP_new(method)) == NULL) ossl_raise(eEC_GROUP, "EC_GROUP_new" } else { ossl_raise(rb_eArgError, "unknown symbol, must be :GFp_simple, :GFp_mont, :GFp_nist or :GF2m_simple" } } else if (rb_obj_is_kind_of(arg1, cEC_GROUP)) { const EC_GROUP *arg1_group; SafeGetECGroup(arg1, arg1_group if ((group = EC_GROUP_dup(arg1_group)) == NULL) ossl_raise(eEC_GROUP, "EC_GROUP_dup" } else { BIO *in = ossl_obj2bio(arg1 group = PEM_read_bio_ECPKParameters(in, NULL, NULL, NULL if (!group) { OSSL_BIO_reset(in group = d2i_ECPKParameters_bio(in, NULL } BIO_free(in if (!group) { const char *name = StringValueCStr(arg1 int nid = OBJ_sn2nid(name ossl_clear_error( /* ignore errors in d2i_ECPKParameters_bio() */ if (nid == NID_undef) ossl_raise(eEC_GROUP, "unknown curve name (%"PRIsVALUE")", arg1 group = EC_GROUP_new_by_curve_name(nid if (group == NULL) ossl_raise(eEC_GROUP, "unable to create curve (%"PRIsVALUE")", arg1 EC_GROUP_set_asn1_flag(group, OPENSSL_EC_NAMED_CURVE EC_GROUP_set_point_conversion_form(group, POINT_CONVERSION_UNCOMPRESSED } } break; case 4: if (SYMBOL_P(arg1)) { ID id = SYM2ID(arg1 EC_GROUP *(*new_curve)(const BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *) = NULL; const BIGNUM *p = GetBNPtr(arg2 const BIGNUM *a = GetBNPtr(arg3 const BIGNUM *b = GetBNPtr(arg4 if (id == s_GFp) { new_curve = EC_GROUP_new_curve_GFp; #if !defined(OPENSSL_NO_EC2M) } else if (id == s_GF2m) { new_curve = EC_GROUP_new_curve_GF2m; #endif } else { ossl_raise(rb_eArgError, "unknown symbol, must be :GFp or :GF2m" } if ((group = new_curve(p, a, b, ossl_bn_ctx)) == NULL) ossl_raise(eEC_GROUP, "EC_GROUP_new_by_GF*" } else { ossl_raise(rb_eArgError, "unknown argument, must be :GFp or :GF2m" } break; default: ossl_raise(rb_eArgError, "wrong number of arguments" } if (group == NULL) ossl_raise(eEC_GROUP, "" RTYPEDDATA_DATA(self) = group; return self; }

公共实例方法

==(p1)

别名为:eql

asn1_flag → Integer 显示源

返回组中设置的标志。

另请参阅asn1_flag =。

static VALUE ossl_ec_group_get_asn1_flag(VALUE self) { EC_GROUP *group = NULL; int flag; GetECGroup(self, group flag = EC_GROUP_get_asn1_flag(group return INT2NUM(flag }

asn1_flag = flags 显示源

设置组上的标志。标志值用于确定如何编码组:使用OID编码显式参数或命名曲线。

标志值可以是以下任一项:

  • EC::NAMED_CURVE

  • EC::EXPLICIT_CURVE

有关EC_GROUP_set_asn1_flag()的信息,请参阅OpenSSL文档。

static VALUE ossl_ec_group_set_asn1_flag(VALUE self, VALUE flag_v) { EC_GROUP *group = NULL; GetECGroup(self, group EC_GROUP_set_asn1_flag(group, NUM2INT(flag_v) return flag_v; }

get_cofactor → cofactor_bn 显示源

返回组的辅助因子。

请参阅EC_GROUP_get_cofactor()的OpenSSL文档

static VALUE ossl_ec_group_get_cofactor(VALUE self) { VALUE bn_obj; BIGNUM *bn; EC_GROUP *group = NULL; GetECGroup(self, group bn_obj = ossl_bn_new(NULL bn = GetBNPtr(bn_obj if (EC_GROUP_get_cofactor(group, bn, ossl_bn_ctx) != 1) ossl_raise(eEC_GROUP, "EC_GROUP_get_cofactor" return bn_obj; }

curve_name → String 显示源

返回曲线名称(sn)。

有关EC_GROUP_get_curve_name()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_get_curve_name(VALUE self) { EC_GROUP *group = NULL; int nid; GetECGroup(self, group if (group == NULL) return Qnil; nid = EC_GROUP_get_curve_name(group /* BUG: an nid or asn1 object should be returned, maybe. */ return rb_str_new2(OBJ_nid2sn(nid) }

degree → integer 显示源

有关EC_GROUP_get_degree()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_get_degree(VALUE self) { EC_GROUP *group = NULL; GetECGroup(self, group return INT2NUM(EC_GROUP_get_degree(group) }

eql?(group2) → true | false 显示源

group1 == group2 → true | false

如果两个组使用相同的曲线并具有相同的参数,则返回true,否则返回false。

static VALUE ossl_ec_group_eql(VALUE a, VALUE b) { EC_GROUP *group1 = NULL, *group2 = NULL; GetECGroup(a, group1 SafeGetECGroup(b, group2 if (EC_GROUP_cmp(group1, group2, ossl_bn_ctx) == 1) return Qfalse; return Qtrue; }

另外别名为:==

generator → ec_point 显示源

返回组的生成器。

请参阅EC_GROUP_get0_generator()的OpenSSL文档

static VALUE ossl_ec_group_get_generator(VALUE self) { EC_GROUP *group; const EC_POINT *generator; GetECGroup(self, group generator = EC_GROUP_get0_generator(group if (!generator) return Qnil; return ec_point_new(generator, group }

get_order → order_bn 显示源

返回组的顺序。

请参阅EC_GROUP_get_order()的OpenSSL文档

static VALUE ossl_ec_group_get_order(VALUE self) { VALUE bn_obj; BIGNUM *bn; EC_GROUP *group = NULL; GetECGroup(self, group bn_obj = ossl_bn_new(NULL bn = GetBNPtr(bn_obj if (EC_GROUP_get_order(group, bn, ossl_bn_ctx) != 1) ossl_raise(eEC_GROUP, "EC_GROUP_get_order" return bn_obj; }

point_conversion_form → Symbol 显示源

返回EC :: Point数据如何编码为ASN.1的形式。

另请参阅point_conversion_form =。

static VALUE ossl_ec_group_get_point_conversion_form(VALUE self) { EC_GROUP *group = NULL; point_conversion_form_t form; VALUE ret; GetECGroup(self, group form = EC_GROUP_get_point_conversion_form(group switch (form) { case POINT_CONVERSION_UNCOMPRESSED: ret = ID_uncompressed; break; case POINT_CONVERSION_COMPRESSED: ret = ID_compressed; break; case POINT_CONVERSION_HYBRID: ret = ID_hybrid; break; default: ossl_raise(eEC_GROUP, "unsupported point conversion form: %d, this module should be updated", form } return ID2SYM(ret }

point_conversion_form = form 显示源

按照X9.62中的定义,设置EC :: Point数据如何编码为ASN.1的形式。

format 可以是其中之一:

:compressed

编码为z || x,其中z是一个八位位组,指示方程y的哪个解。z将是0x02或0x03。

:uncompressed

编码为z || x || y,其中z是一个八位位组0x04。

:hybrid

编码为z || x || y,其中z是指示方程y的哪个解的八位字节。z将是0x06或0x07。

有关EC_GROUP_set_point_conversion_form()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_set_point_conversion_form(VALUE self, VALUE form_v) { EC_GROUP *group; point_conversion_form_t form; GetECGroup(self, group form = parse_point_conversion_form_symbol(form_v EC_GROUP_set_point_conversion_form(group, form return form_v; }

seed → String or nil 显示源

有关EC_GROUP_get0_seed()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_get_seed(VALUE self) { EC_GROUP *group = NULL; size_t seed_len; GetECGroup(self, group seed_len = EC_GROUP_get_seed_len(group if (seed_len == 0) return Qnil; return rb_str_new((const char *)EC_GROUP_get0_seed(group), seed_len }

seed = seed → seed 显示源

请参阅EC_GROUP_set_seed()的OpenSSL文档

static VALUE ossl_ec_group_set_seed(VALUE self, VALUE seed) { EC_GROUP *group = NULL; GetECGroup(self, group StringValue(seed if (EC_GROUP_set_seed(group, (unsigned char *)RSTRING_PTR(seed), RSTRING_LEN(seed)) != (size_t)RSTRING_LEN(seed)) ossl_raise(eEC_GROUP, "EC_GROUP_set_seed" return seed; }

set_generator(generator, order, cofactor) → self 显示源

设置曲线参数。generator必须是曲线上的EC :: Point的实例。order并且cofactor是整数。

请参阅EC_GROUP_set_generator()的OpenSSL文档

static VALUE ossl_ec_group_set_generator(VALUE self, VALUE generator, VALUE order, VALUE cofactor) { EC_GROUP *group = NULL; const EC_POINT *point; const BIGNUM *o, *co; GetECGroup(self, group SafeGetECPoint(generator, point o = GetBNPtr(order co = GetBNPtr(cofactor if (EC_GROUP_set_generator(group, point, o, co) != 1) ossl_raise(eEC_GROUP, "EC_GROUP_set_generator" return self; }

to_der → String显示源

有关i2d_ECPKParameters_bio()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_to_der(VALUE self) { return ossl_ec_group_to_string(self, EXPORT_DER }

to_pem → String 显示源

请参阅PEM_write_bio_ECPKParameters()的OpenSSL文档

static VALUE ossl_ec_group_to_pem(VALUE self) { return ossl_ec_group_to_string(self, EXPORT_PEM }

to_text → String 显示源

有关ECPKParameters_print()的信息,请参阅OpenSSL文档

static VALUE ossl_ec_group_to_text(VALUE self) { EC_GROUP *group; BIO *out; VALUE str; GetECGroup(self, group if (!(out = BIO_new(BIO_s_mem()))) { ossl_raise(eEC_GROUP, "BIO_new(BIO_s_mem())" } if (!ECPKParameters_print(out, group, 0)) { BIO_free(out ossl_raise(eEC_GROUP, NULL } str = ossl_membio2str(out return str; }