io.netty.handler.codec.http2.Http2SecurityUtil Maven / Gradle / Ivy
/*
* Copyright 2014 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.codec.http2;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
/**
* Provides utilities related to security requirements specific to HTTP/2.
*/
public final class Http2SecurityUtil {
/**
* The following list is derived from SunJSSE Supported
* Ciphers and Mozilla Modern Cipher
* Suites in accordance with the HTTP/2 Specification.
*
* According to the
* JSSE documentation "the names mentioned in the TLS RFCs prefixed with TLS_ are functionally equivalent
* to the JSSE cipher suites prefixed with SSL_".
* Both variants are used to support JVMs supporting the one or the other.
*/
public static final List CIPHERS;
/**
* Mozilla Modern Cipher Suites Intermediate compatibility minus the following cipher suites that are black
* listed by the HTTP/2 RFC.
*/
private static final List CIPHERS_JAVA_MOZILLA_MODERN_SECURITY = Collections.unmodifiableList(Arrays
.asList(
/* openssl = ECDHE-ECDSA-AES128-GCM-SHA256 */
"TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256",
/* REQUIRED BY HTTP/2 SPEC */
/* openssl = ECDHE-RSA-AES128-GCM-SHA256 */
"TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256",
/* REQUIRED BY HTTP/2 SPEC */
/* openssl = ECDHE-ECDSA-AES256-GCM-SHA384 */
"TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384",
/* openssl = ECDHE-RSA-AES256-GCM-SHA384 */
"TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384",
/* openssl = ECDHE-ECDSA-CHACHA20-POLY1305 */
"TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256",
/* openssl = ECDHE-RSA-CHACHA20-POLY1305 */
"TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256",
/* TLS 1.3 ciphers */
"TLS_AES_128_GCM_SHA256",
"TLS_AES_256_GCM_SHA384",
"TLS_CHACHA20_POLY1305_SHA256"
));
static {
CIPHERS = Collections.unmodifiableList(new ArrayList(CIPHERS_JAVA_MOZILLA_MODERN_SECURITY));
}
private Http2SecurityUtil() { }
}