OpenSSL::PKey::EC

Class

Constants

EC.builtin_curves => [[name, comment], ...]

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_s_builtin_curves(VALUE self)
{
    EC_builtin_curve *curves = NULL;
    int n;
    int crv_len = rb_long2int(EC_get_builtin_curves(NULL, 0));
    VALUE ary, ret;

    curves = ALLOCA_N(EC_builtin_curve, crv_len);
    if (curves == NULL)
        return Qnil;
    if (!EC_get_builtin_curves(curves, crv_len))
        ossl_raise(rb_eRuntimeError, "EC_get_builtin_curves");

    ret = rb_ary_new2(crv_len);

    for (n = 0; n < crv_len; n++) {
        const char *sname = OBJ_nid2sn(curves[n].nid);
        const char *comment = curves[n].comment;

        ary = rb_ary_new2(2);
        rb_ary_push(ary, rb_str_new2(sname));
        rb_ary_push(ary, comment ? rb_str_new2(comment) : Qnil);
        rb_ary_push(ret, ary);
    }

    return ret;
}

See the OpenSSL documentation for EC_builtin_curves()

OpenSSL::PKey::EC.new(ec_group)

OpenSSL::PKey::EC.new("secp112r1")

OpenSSL::PKey::EC.new(pem_string)

OpenSSL::PKey::EC.new(pem_string [, pwd])

OpenSSL::PKey::EC.new(der_string)

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_initialize(int argc, VALUE *argv, VALUE self)
{
    EVP_PKEY *pkey;
    EC_KEY *ec = NULL;
    VALUE arg, pass;
    VALUE group = Qnil;
    char *passwd = NULL;

    GetPKey(self, pkey);
    if (pkey->pkey.ec)
        ossl_raise(eECError, "EC_KEY already initialized");

    rb_scan_args(argc, argv, "02", &arg, &pass);

    if (NIL_P(arg)) {
        ec = EC_KEY_new();
    } else {
        if (rb_obj_is_kind_of(arg, cEC)) {
            EC_KEY *other_ec = NULL;

            SafeRequire_EC_KEY(arg, other_ec);
            ec = EC_KEY_dup(other_ec);
        } else if (rb_obj_is_kind_of(arg, cEC_GROUP)) {
                ec = EC_KEY_new();
                group = arg;
        } else {
            BIO *in = ossl_obj2bio(&arg);

            if (!NIL_P(pass)) {
                passwd = StringValuePtr(pass);
            }
            ec = PEM_read_bio_ECPrivateKey(in, NULL, ossl_pem_passwd_cb, passwd);
            if (!ec) {
                OSSL_BIO_reset(in);
                ec = PEM_read_bio_EC_PUBKEY(in, NULL, ossl_pem_passwd_cb, passwd);
            }
            if (!ec) {
                OSSL_BIO_reset(in);
                ec = d2i_ECPrivateKey_bio(in, NULL);
            }
            if (!ec) {
                OSSL_BIO_reset(in);
                ec = d2i_EC_PUBKEY_bio(in, NULL);
            }

            BIO_free(in);

            if (ec == NULL) {
                const char *name = StringValueCStr(arg);
                int nid = OBJ_sn2nid(name);

                (void)ERR_get_error();
                if (nid == NID_undef)
                    ossl_raise(eECError, "unknown curve name (%s)\n", name);

                if ((ec = EC_KEY_new_by_curve_name(nid)) == NULL)
                    ossl_raise(eECError, "unable to create curve (%s)\n", name);

                EC_KEY_set_asn1_flag(ec, OPENSSL_EC_NAMED_CURVE);
                EC_KEY_set_conv_form(ec, POINT_CONVERSION_UNCOMPRESSED);
            }
        }
    }

    if (ec == NULL)
        ossl_raise(eECError, NULL);

    if (!EVP_PKEY_assign_EC_KEY(pkey, ec)) {
        EC_KEY_free(ec);
        ossl_raise(eECError, "EVP_PKEY_assign_EC_KEY");
    }

    rb_iv_set(self, "@group", Qnil);

    if (!NIL_P(group))
        rb_funcall(self, rb_intern("group="), 1, arg);

    return self;
}

See the OpenSSL documentation for:

EC_KEY_*

Instance Methods

key.check_key => true

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_check_key(VALUE self)
{
    EC_KEY *ec;

    Require_EC_KEY(self, ec);

    if (EC_KEY_check_key(ec) != 1)
        ossl_raise(eECError, "EC_KEY_check_key");

    return Qtrue;
}

Raises an exception if the key is invalid.

See the OpenSSL documentation for EC_KEY_check_key()

key.dh_compute_key(pubkey) => String

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_dh_compute_key(VALUE self, VALUE pubkey)
{
    EC_KEY *ec;
    EC_POINT *point;
    int buf_len;
    VALUE str;

    Require_EC_KEY(self, ec);
    SafeRequire_EC_POINT(pubkey, point);

/* BUG: need a way to figure out the maximum string size */
    buf_len = 1024;
    str = rb_str_new(0, buf_len);
/* BUG: take KDF as a block */
    buf_len = ECDH_compute_key(RSTRING_PTR(str), buf_len, point, ec, NULL);
    if (buf_len < 0)
         ossl_raise(eECError, "ECDH_compute_key");

    rb_str_resize(str, buf_len);

    return str;
}

See the OpenSSL documentation for ECDH_compute_key()

key.dsa_sign_asn1(data) => String

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_dsa_sign_asn1(VALUE self, VALUE data)
{
    EC_KEY *ec;
    unsigned int buf_len;
    VALUE str;

    Require_EC_KEY(self, ec);
    StringValue(data);

    if (EC_KEY_get0_private_key(ec) == NULL)
        ossl_raise(eECError, "Private EC key needed!");

    str = rb_str_new(0, ECDSA_size(ec) + 16);
    if (ECDSA_sign(0, (unsigned char *) RSTRING_PTR(data), RSTRING_LENINT(data), (unsigned char *) RSTRING_PTR(str), &buf_len, ec) != 1)
         ossl_raise(eECError, "ECDSA_sign");

    rb_str_resize(str, buf_len);

    return str;
}

See the OpenSSL documentation for ECDSA_sign()

key.dsa_verify_asn1(data, sig) => true or false

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_dsa_verify_asn1(VALUE self, VALUE data, VALUE sig)
{
    EC_KEY *ec;

    Require_EC_KEY(self, ec);
    StringValue(data);
    StringValue(sig);

    switch (ECDSA_verify(0, (unsigned char *) RSTRING_PTR(data), RSTRING_LENINT(data), (unsigned char *) RSTRING_PTR(sig), (int)RSTRING_LEN(sig), ec)) {
    case 1:     return Qtrue;
    case 0:     return Qfalse;
    default:    break;
    }

    ossl_raise(eECError, "ECDSA_verify");

    UNREACHABLE;
}

See the OpenSSL documentation for ECDSA_verify()

key.export([cipher, pass_phrase]) => String

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_export(int argc, VALUE *argv, VALUE self)
{
    VALUE cipher, passwd;
    rb_scan_args(argc, argv, "02", &cipher, &passwd);
    return ossl_ec_key_to_string(self, cipher, passwd, EXPORT_PEM);
}

Outputs the EC key in PEM encoding. If cipher and pass_phrase are given they will be used to encrypt the key. cipher must be an OpenSSL::Cipher::Cipher instance. Note that encryption will only be effective for a private key, public keys will always be encoded in plain text.

key.generate_key => self

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_generate_key(VALUE self)
{
    EC_KEY *ec;

    Require_EC_KEY(self, ec);

    if (EC_KEY_generate_key(ec) != 1)
        ossl_raise(eECError, "EC_KEY_generate_key");

    return self;
}

See the OpenSSL documentation for EC_KEY_generate_key()

key.group => group

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_get_group(VALUE self)
{
    VALUE group_v;
    EC_KEY *ec;
    ossl_ec_group *ec_group;
    EC_GROUP *group;

    Require_EC_KEY(self, ec);

    group_v = rb_iv_get(self, "@group");
    if (!NIL_P(group_v))
        return group_v;

    if ((group = (EC_GROUP *)EC_KEY_get0_group(ec)) != NULL) {
        group_v = rb_obj_alloc(cEC_GROUP);
        SafeGet_ec_group(group_v, ec_group);
        ec_group->group = group;
        ec_group->dont_free = 1;
        rb_iv_set(group_v, "@key", self);
        rb_iv_set(self, "@group", group_v);
        return group_v;
    }

    return Qnil;
}

Returns a constant OpenSSL::EC::Group that is tied to the key. Modifying the returned group can make the key invalid.

key.group = group => group

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_set_group(VALUE self, VALUE group_v)
{
    VALUE old_group_v;
    EC_KEY *ec;
    EC_GROUP *group;

    Require_EC_KEY(self, ec);
    SafeRequire_EC_GROUP(group_v, group);

    old_group_v = rb_iv_get(self, "@group");
    if (!NIL_P(old_group_v)) {
        ossl_ec_group *old_ec_group;
        SafeGet_ec_group(old_group_v, old_ec_group);

        old_ec_group->group = NULL;
        old_ec_group->dont_free = 0;
        rb_iv_set(old_group_v, "@key", Qnil);
    }

    rb_iv_set(self, "@group", Qnil);

    if (EC_KEY_set_group(ec, group) != 1)
        ossl_raise(eECError, "EC_KEY_set_group");

    return group_v;
}

Returns the same object passed, not the group object associated with the key. If you wish to access the group object tied to the key call key.group after setting the group.

Setting the group will immediately destroy any previously assigned group object. The group is internally copied by OpenSSL. Modifying the original group after assignment will not effect the internal key structure. (your changes may be lost). BE CAREFUL.

EC_KEY_set_group calls EC_GROUP_free(key->group) then EC_GROUP_dup(), not EC_GROUP_copy. This documentation is accurate for OpenSSL 0.9.8b.

key.private_key => OpenSSL::BN

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_get_private_key(VALUE self)
{
    EC_KEY *ec;
    const BIGNUM *bn;

    Require_EC_KEY(self, ec);

    if ((bn = EC_KEY_get0_private_key(ec)) == NULL)
        return Qnil;

    return ossl_bn_new(bn);
}

See the OpenSSL documentation for EC_KEY_get0_private_key()

key.private_key = openssl_bn

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_set_private_key(VALUE self, VALUE private_key)
{
    EC_KEY *ec;
    BIGNUM *bn = NULL;

    Require_EC_KEY(self, ec);
    if (!NIL_P(private_key))
        bn = GetBNPtr(private_key);

    switch (EC_KEY_set_private_key(ec, bn)) {
    case 1:
        break;
    case 0:
        if (bn == NULL)
            break;
    default:
        ossl_raise(eECError, "EC_KEY_set_private_key");
    }

    return private_key;
}

See the OpenSSL documentation for EC_KEY_set_private_key()

key.private_key? => true or false

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_is_private_key(VALUE self)
{
    EC_KEY *ec;

    Require_EC_KEY(self, ec);

    return (EC_KEY_get0_private_key(ec) ? Qtrue : Qfalse);
}

Both public_key? and private_key? may return false at the same time unlike other PKey classes.

key.public_key => OpenSSL::PKey::EC::Point

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_get_public_key(VALUE self)
{
    EC_KEY *ec;
    const EC_POINT *point;
    VALUE group;

    Require_EC_KEY(self, ec);

    if ((point = EC_KEY_get0_public_key(ec)) == NULL)
        return Qnil;

    group = rb_funcall(self, rb_intern("group"), 0);
    if (NIL_P(group))
        ossl_raise(eECError, "EC_KEY_get0_get0_group (has public_key but no group???");

    return ossl_ec_point_dup(point, group);
}

See the OpenSSL documentation for EC_KEY_get0_public_key()

key.public_key = ec_point

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_set_public_key(VALUE self, VALUE public_key)
{
    EC_KEY *ec;
    EC_POINT *point = NULL;

    Require_EC_KEY(self, ec);
    if (!NIL_P(public_key))
        SafeRequire_EC_POINT(public_key, point);

    switch (EC_KEY_set_public_key(ec, point)) {
    case 1:
        break;
    case 0:
        if (point == NULL)
            break;
    default:
        ossl_raise(eECError, "EC_KEY_set_public_key");
    }

    return public_key;
}

See the OpenSSL documentation for EC_KEY_set_public_key()

key.public_key? => true or false

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_is_public_key(VALUE self)
{
    EC_KEY *ec;

    Require_EC_KEY(self, ec);

    return (EC_KEY_get0_public_key(ec) ? Qtrue : Qfalse);
}

Both public_key? and private_key? may return false at the same time unlike other PKey classes.

key.to_der => String

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_to_der(VALUE self)
{
    return ossl_ec_key_to_string(self, Qnil, Qnil, EXPORT_DER);
}

See the OpenSSL documentation for i2d_ECPrivateKey_bio()

key.to_pem([cipher, pass_phrase]) => String

ext/openssl/ossl_pkey_ec.c View on GitHub

An alias for export

key.to_text => String

ext/openssl/ossl_pkey_ec.c View on GitHub

          
            static VALUE ossl_ec_key_to_text(VALUE self)
{
    EC_KEY *ec;
    BIO *out;
    VALUE str;

    Require_EC_KEY(self, ec);
    if (!(out = BIO_new(BIO_s_mem()))) {
        ossl_raise(eECError, "BIO_new(BIO_s_mem())");
    }
    if (!EC_KEY_print(out, ec, 0)) {
        BIO_free(out);
        ossl_raise(eECError, "EC_KEY_print");
    }
    str = ossl_membio2str(out);

    return str;
}

See the OpenSSL documentation for EC_KEY_print()

OpenSSL::PKey::EC

NAMED_CURVE

EC.builtin_curves => [[name, comment], ...]

OpenSSL::PKey::EC.new()

OpenSSL::PKey::EC.new(ec_key)

OpenSSL::PKey::EC.new(ec_group)

OpenSSL::PKey::EC.new("secp112r1")

OpenSSL::PKey::EC.new(pem_string)

OpenSSL::PKey::EC.new(pem_string [, pwd])

OpenSSL::PKey::EC.new(der_string)

key.check_key => true

key.dh_compute_key(pubkey) => String

key.dsa_sign_asn1(data) => String

key.dsa_verify_asn1(data, sig) => true or false

key.export([cipher, pass_phrase]) => String

key.generate_key => self

key.group => group

key.group = group => group

key.private_key => OpenSSL::BN

key.private_key = openssl_bn

key.private_key? => true or false

key.public_key => OpenSSL::PKey::EC::Point

key.public_key = ec_point

key.public_key? => true or false

key.to_der => String

key.to_pem([cipher, pass_phrase]) => String

key.to_text => String