com.byteplus.llmshield

Class Sign

java.lang.Object

com.byteplus.llmshield.Sign

public class Sign
extends Object

Copyright (year) Beijing Volcano Engine Technology Ltd.

Licensed 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

http://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.

Field Summary

Fields

Modifier and Type	Field and Description
static Charset	UTF_8

Constructor Summary

Constructors

Constructor and Description
Sign()

Method Summary

Modifier and Type	Method and Description
void	DoSignRequest(org.apache.http.client.methods.HttpPost httpPost, URI uri, String action, String ak, String sk, String region) 核心加签方法：为 HttpPost 请求添加火山引擎 API 签名
static String	hashSHA256(byte[] content)
static byte[]	hmacSHA256(byte[] key, String content)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UTF_8

public static final Charset UTF_8

Constructor Detail

Sign

public Sign()

Method Detail

DoSignRequest

public void DoSignRequest(org.apache.http.client.methods.HttpPost httpPost,
                          URI uri,
                          String action,
                          String ak,
                          String sk,
                          String region)
                   throws Exception

核心加签方法：为 HttpPost 请求添加火山引擎 API 签名

Parameters:

httpPost - 待加签的 HttpPost 请求（需提前设置请求体，若有）

uri - 请求的 URI（包含 host、path、query 参数）

ak - 访问密钥 AK

sk - 密钥 SK

region - 地域（如 cn-beijing，需与 API 所属地域一致）

Throws:

Exception - 加签过程中异常（如加密算法异常、请求体读取异常）

hashSHA256

public static String hashSHA256(byte[] content)
                         throws Exception

Throws:

Exception

hmacSHA256

public static byte[] hmacSHA256(byte[] key,
                                String content)
                         throws Exception

Throws:

Exception