当前ACME服务要求提供外部账号绑定凭据（External Account Binding），比如ZeroSSL：你可以在ZeroSSL的管理控制台的 Developer 中获得此凭据，所以你需要先注册一个ZeroSSL的账号。The current ACME service requires external account binding credentials, such as ZeroSSL: You can obtain this credentials in the Developer of the ZeroSSL management console, so you need to register a ZeroSSL account first.
请给每个域名选择一个你合适的验证方式（推荐采用DNS验证，比较简单和通用），然后根据显示的提示完成对应的配置操作。Please select a suitable verification method for each domain name (DNS Verify is recommended, which is relatively simple and common), and then complete the corresponding configuration operations according to the displayed prompts.
请每个域名选择好对应的验证方式，根据显示的提示进行对应的配置操作；必须所有域名配置完成后，再来点击下面的“开始验证”按钮进行验证，如果验证失败，需要返回第二步重新开始操作。Please select the corresponding verify method for each domain name, and perform the corresponding configuration operation according to the displayed prompts; after all domain names are configured, click the "Start Verify" button below to verify, if the verify fails, you need to go back to the step 2 Start the operation.
开始验证Start Verify取消Cancel重试Retry
步骤四：下载保存证书PEM文件Step 4: Download and save the certificate PEM file
必须保存此文件，请点击下载按钮下载，或者将证书文本内容复制保存为文件（PEM纯文本格式）；文件名后缀可改成 .crt 或 .cer，这样在Windows中能直接双击打开查看。本PEM格式文件已包含你的域名证书、和完整证书链，文本中第一个CERTIFICATE为你的域名证书，后面的为证书颁发机构的中间证书和根证书，如过有需要你可以自行拆分成多个.pem文件。This file must be saved, please click the download button to download, or copy the text content of the certificate and save it as file (PEM plain text format); the file name suffix can be changed to .crt or .cer , so that it can be directly double-clicked to open and view in Windows. This PEM format file already contains your domain name certificate and complete certificate chain. The first CERTIFICATE in the text is your domain name certificate, followed by the intermediate certificate and root certificate of the certificate authority, if necessary, you can split it into multiple .pem files.
下载保存Download
*保存证书私钥KEY文件：Save the certificate private key KEY file:
请点击下载按钮下载，或者将私钥文本内容复制保存为文件（PEM纯文本格式，.key后缀可自行修改成.pem）。如果第二步操作中你手动填写了证书私钥，此处的证书私钥和你填写的是完全一样的，可以不需要重复保存；如果你是新创建的证书私钥，则你必须下载保存此证书私钥文件。Please click the download button to download, or copy and save the text content of the private key as file (PEM plain text format, the .key suffix can be modified to .pem by yourself). If you manually filled in the certificate private key in the step 2, the certificate private key here is exactly the same as what you filled in, and you don’t need to save it repeatedly; if you are a newly created certificate private key, you must download and save it This certificate private key file.
下载保存Download
*保存记录LOG文件：Save the record LOG file:
建议下载保存此文件，本记录文件包含了所有数据，包括：证书PEM文本、证书私钥PEM文本、账户私钥PEM文本、所有配置参数。下次你需要续签新证书时，可以将本记录文件直接拖拽进本页面，会自动填写所有参数。It is recommended to download and save this file. This record file contains all data, including: certificate PEM text, certificate private key PEM text, account private key PEM text, and all configuration parameters. Next time you need to renew a new certificate, you can drag and drop the record file directly into this page, and all parameters will be filled in automatically.
下载保存Download
你需要其他格式的证书文件？Do you need certificate files in other formats?
大部分服务器程序支持直接使用 + 来配置开启HTTPS（比如Nginx），如果你需要 *.pfx、*.p12 格式的证书（比如用于IIS），请用下面命令将PEM证书转换成 pfx/p12 格式：Most server programs support directly using + to configure and enable HTTPS (such as Nginx). If you need a certificate in *.pfx or *.p12 format (such as for IIS), please use the following command to convert the PEM certificate Convert to pfx/p12 format:
openssl pkcs12 -export -out .pfx -inkey -in
IIS证书链缺失？IIS certificate chain missing?
对于Windows IIS服务器，你需要将证书链安装到“本地计算机”的“中间证书颁发机构”中；请将PEM证书中的所有证书拆分成单个PEM文件（后缀改成.crt或.cer），然后将系统中缺失的中间证书双击打开然后安装进去；详细参考：For Windows IIS server, you need to install the certificate chain into "Intermediate Certification Authorities" in "Local Computer"; please split all certificates in PEM certificate into a single PEM file (change the suffix to .crt or .cer), then double-click to open the missing intermediate certificate in the system Then install it; detailed reference:http://support.microsoft.com/kb/954755
本客户端部分原理简介Introduction to the principle of this client
得益于现代浏览器的 crypto.subtle 对加密功能标准化，不依赖其他任何js库就能在网页上实现 RSA、ECC 的加密、解密、签名、验证、和密钥对生成。在本客户端内的 X509 对象中：用 X509.CreateCSR 来生成CSR，用 X509.KeyGenerate 来创建PEM格式密钥，用 X509.KeyParse 来解析PEM格式密钥，用 X509.KeyExport 来导出PEM格式密钥；这些功能都是根据相应的标准用js代码在二进制层面上实现的，二进制数据操作封装在了 ASN1 对象中：实现了 ASN.1 标准的二进制解析和封包，使用 ASN1.ParsePEM 方法可以解析任意的PEM格式密钥或证书。以上这些都是实现ACME网页客户端的核心基础。Thanks to the standardization of encryption functions by crypto.subtle of modern browsers, RSA and ECC encryption, decryption, signature, verification, and key pair generation can be implemented on web pages without relying on any other js library. In the X509 object in this client: use X509.CreateCSR to generate CSR, use X509.KeyGenerate to create PEM format key, use X509.KeyParse to parse PEM format key, use X509.KeyExport to export PEM format key; These functions are implemented at the binary level with js code according to the corresponding standards, and binary data operations are encapsulated in ASN1 objects: ASN.1 standard binary parsing and encapsulation are implemented, Arbitrary PEM format keys or certificates can be parsed using the ASN1.ParsePEM method. These are the core foundations for implementing the ACME web client.