GroupsConverter.java — netty Source File

Source Code

/*
 * Copyright 2021 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.handler.ssl;

/**
 * Convert java naming to OpenSSL naming if possible and if not return the original name.
 */
final class GroupsConverter {

    // See https://tools.ietf.org/search/rfc4492#appendix-A and https://www.java.com/en/configure_crypto.html
    static String toOpenSsl(String key) {
        switch (key) {
            case "secp224r1":
                return "P-224";
            case "prime256v1":
            case "secp256r1":
                return "P-256";
            case "secp384r1":
                return "P-384";
            case "secp521r1":
                return "P-521";
            case "x25519":
                return "X25519";
            default:
                return key;
        }
    }

    private GroupsConverter() { }
}