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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * accompanied this code).

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package sun.security.ssl;

import java.security.spec.ECParameterSpec;

import java.security.spec.ECGenParameterSpec;

import static sun.security.ssl.NamedGroupType.*;

enum NamedGroup {

    // Elliptic Curves (RFC 4492)

    //

    // See sun.security.util.CurveDB for the OIDs

    // NIST K-163

    SECT163_K1(1, NAMED_GROUP_ECDHE, "sect163k1", "1.3.132.0.1", true),

    SECT163_R1(2, NAMED_GROUP_ECDHE, "sect163r1", "1.3.132.0.2", false),

    // NIST B-163

    SECT163_R2(3, NAMED_GROUP_ECDHE, "sect163r2", "1.3.132.0.15", true),

    SECT193_R1(4, NAMED_GROUP_ECDHE, "sect193r1", "1.3.132.0.24", false),

    SECT193_R2(5, NAMED_GROUP_ECDHE, "sect193r2", "1.3.132.0.25", false),

    // NIST K-233

    SECT233_K1(6, NAMED_GROUP_ECDHE, "sect233k1", "1.3.132.0.26", true),

    // NIST B-233

    SECT233_R1(7, NAMED_GROUP_ECDHE, "sect233r1", "1.3.132.0.27", true),

    SECT239_K1(8, NAMED_GROUP_ECDHE, "sect239k1", "1.3.132.0.3", false),

    // NIST K-283

    SECT283_K1(9, NAMED_GROUP_ECDHE, "sect283k1", "1.3.132.0.16", true),

    // NIST B-283

    SECT283_R1(10, NAMED_GROUP_ECDHE, "sect283r1", "1.3.132.0.17", true),

    // NIST K-409

    SECT409_K1(11, NAMED_GROUP_ECDHE, "sect409k1", "1.3.132.0.36", true),

    // NIST B-409

    SECT409_R1(12, NAMED_GROUP_ECDHE, "sect409r1", "1.3.132.0.37", true),

    // NIST K-571

    SECT571_K1(13, NAMED_GROUP_ECDHE, "sect571k1", "1.3.132.0.38", true),

    // NIST B-571

    SECT571_R1(14, NAMED_GROUP_ECDHE, "sect571r1", "1.3.132.0.39", true),

    SECP160_K1(15, NAMED_GROUP_ECDHE, "secp160k1", "1.3.132.0.9", false),

    SECP160_R1(16, NAMED_GROUP_ECDHE, "secp160r1", "1.3.132.0.8", false),

    SECP160_R2(17, NAMED_GROUP_ECDHE, "secp160r2", "1.3.132.0.30", false),

    SECP192_K1(18, NAMED_GROUP_ECDHE, "secp192k1", "1.3.132.0.31", false),

    // NIST P-192

    SECP192_R1(19, NAMED_GROUP_ECDHE, "secp192r1", "1.2.840.10045.3.1.1", true),

    SECP224_K1(20, NAMED_GROUP_ECDHE, "secp224k1", "1.3.132.0.32", false),

    // NIST P-224

    SECP224_R1(21, NAMED_GROUP_ECDHE, "secp224r1", "1.3.132.0.33", true),

    SECP256_K1(22, NAMED_GROUP_ECDHE, "secp256k1", "1.3.132.0.10", false),

    // NIST P-256

    SECP256_R1(23, NAMED_GROUP_ECDHE, "secp256r1", "1.2.840.10045.3.1.7", true),

    // NIST P-384

    SECP384_R1(24, NAMED_GROUP_ECDHE, "secp384r1", "1.3.132.0.34", true),

    // NIST P-521

    SECP521_R1(25, NAMED_GROUP_ECDHE, "secp521r1", "1.3.132.0.35", true),

    // Finite Field Diffie-Hellman Ephemeral Parameters (RFC 7919)

    FFDHE_2048(256, NAMED_GROUP_FFDHE, "ffdhe2048",  true),

    FFDHE_3072(257, NAMED_GROUP_FFDHE, "ffdhe3072",  true),

    FFDHE_4096(258, NAMED_GROUP_FFDHE, "ffdhe4096",  true),

    FFDHE_6144(259, NAMED_GROUP_FFDHE, "ffdhe6144",  true),

    FFDHE_8192(260, NAMED_GROUP_FFDHE, "ffdhe8192",  true);

    int             id;

    NamedGroupType  type;

    String          name;

    String          oid;

    String          algorithm;

    boolean         isFips;

    // Constructor used for Elliptic Curve Groups (ECDHE)

    NamedGroup(int id, NamedGroupType type,

                String name, String oid, boolean isFips) {

        this.id = id;

        this.type = type;

        this.name = name;

        this.oid = oid;

        this.algorithm = "EC";

        this.isFips = isFips;

    }

    // Constructor used for Finite Field Diffie-Hellman Groups (FFDHE)

    NamedGroup(int id, NamedGroupType type, String name, boolean isFips) {

        this.id = id;

        this.type = type;

        this.name = name;

        this.oid = null;

        this.algorithm = "DiffieHellman";

        this.isFips = isFips;

    }

    static NamedGroup valueOf(int id) {

        for (NamedGroup group : NamedGroup.values()) {

            if (group.id == id) {

                return group;

            }

        }

        return null;

    }

    static NamedGroup nameOf(String name) {

        for (NamedGroup group : NamedGroup.values()) {

            if (group.name.equals(name)) {

                return group;

            }

        }

        return null;

    }

    static NamedGroup valueOf(ECParameterSpec params) {

        String oid = JsseJce.getNamedCurveOid(params);

        if ((oid != null) && (!oid.isEmpty())) {

            for (NamedGroup group : NamedGroup.values()) {

                if (oid.equals(group.oid)) {

                    return group;

                }

            }

        }

        return null;

    }

    @Override

    public String toString() {

        return this.name;

    }

}