如何从 C# 中的 .Net DLL 中提取公钥? [英] How to extract public key from a .Net DLL in C#?

问题描述

我想在 C# 中从 autenticode 签名的 .Net DLL 中提取公钥，而不是公钥令牌?

I want to extract public key, not public key token, in C# from a autenticode signed .Net DLL?

推荐答案

要从经过 Authenticode 签名的 .Net 库获取公钥，请使用以下代码:

To get a public key from an Autenticode signed .Net library use the following code:

Assembly assembly = Assembly.LoadFrom("dll_file_name");
X509Certificate certificate = assembly.ManifestModule.GetSignerCertificate();

byte[] publicKey = certificate.GetPublicKey();

但这只有在证书安装到受信任的根证书颁发机构时才有效.否则，GetSignerCertificate() 返回 null.

But this will work only if the certificate was installed into Trusted Root Certification Authorities. Otherwise, GetSignerCertificate() returns null.

第二种方式允许获取证书，即使它不在受信任的根证书颁发机构中.

The second way allows to get a certificate even if it isn't in Trusted Root Certification Authorities.

X509Certificate executingCert = X509Certificate.CreateFromSignedFile("dll_file_name");
byte[] publicKey = certificate.GetPublicKey();

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