问题描述
.NET 中是否有从 rfc-2253 编码的专有名称解析 CN 的调用?我知道有一些第三方库可以做到这一点，但如果可能的话，我更愿意使用本机 .NET 库.
Is there a call in .NET that parses the CN from a rfc-2253 encoded distinguished name? I know there are some third-party libraries that do this, but I would prefer to use native .NET libraries if possible.
字符串编码的DN示例
CN=L.Eagle,O=Sue, Grabbit and Runn,C=GB
CN=L. Eagle,O=Sue, Grabbit and Runn,C=GB
CN=Jeff Smith,OU=Sales,DC=Fabrikam,DC=COM
CN=Jeff Smith,OU=Sales,DC=Fabrikam,DC=COM
推荐答案
如果您使用的是 X509Certificate2，则可以使用本机方法来提取简单名称.简单名称相当于主证书的主题字段中的通用名称 RDN:
If you are working with an X509Certificate2, there is a native method that you can use to extract the Simple Name. The Simple Name is equivalent to the Common Name RDN within the Subject field of the main certificate:
x5092Cert.GetNameInfo(X509NameType.SimpleName, false);
或者，X509NameType.DnsName 可用于检索主题备用名称(如果存在)；否则，它将默认为通用名称:
Alternatively, X509NameType.DnsName can be used to retrieve the Subject Alternative Name, if present; otherwise, it will default to the Common Name:
x5092Cert.GetNameInfo(X509NameType.DnsName, false);
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