io.netty.handler.ssl.GroupsConverter Maven / Gradle / Ivy
/*
* 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;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
/**
* Convert java naming to OpenSSL naming if possible and if not return the original name.
*/
final class GroupsConverter {
private static final Map mappings;
static {
// See https://tools.ietf.org/search/rfc4492#appendix-A and https://www.java.com/en/configure_crypto.html
Map map = new HashMap();
map.put("secp224r1", "P-224");
map.put("prime256v1", "P-256");
map.put("secp256r1", "P-256");
map.put("secp384r1", "P-384");
map.put("secp521r1", "P-521");
map.put("x25519", "X25519");
mappings = Collections.unmodifiableMap(map);
}
static String toOpenSsl(String key) {
String mapping = mappings.get(key);
if (mapping == null) {
return key;
}
return mapping;
}
private GroupsConverter() { }
}