解密.NET8中的RsaProtectedConfigurationProvider

Question

我在单独的配置文件中定义了应用程序的连接字符串。在迁移到 .NET8 时，我在尝试解密时面临平台不支持错误。有没有办法在c#中解密它？

这是我的配置文件：

<?xml version="1.0" encoding="utf-8"?>
<connectionStrings configProtectionProvider="RsaProtectedConfigurationProvider">
    <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"
        xmlns="http://www.w3.org/2001/04/xmlenc#">
        <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#aes256-cbc" />
        <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
            <EncryptedKey xmlns="http://www.w3.org/2001/04/xmlenc#">
                <EncryptionMethod Algorithm="http://www.w3.org/2001/04/xmlenc#rsa-oaep-mgf1p" />
                <KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#">
                    <KeyName>Rsa Key</KeyName>
                </KeyInfo>
                <CipherData>
                    <CipherValue>lT+4rnY5uXs2FXfNh4PSZOzbihEyLNOHH2+aQB2mAuElk6NBLFtEKKGr+V0nUDE74w4N1zX00nWUqM2A3u5RiPc3NSxY3qF/Ff5CxMdmTIpmPpyJ1aIfPF4ldCAePQksikahbsMXk5+MREBZ+kzsEsCvoQa/JrjO/1oz/tG9vZZCG3GD/Rsp1PbVX1IKdy2WrEO1cp4YQVLdPmXJM7TkvXabz3mIptLfb2qI/csZ8ZvHHPFDXtd4aM6BBibO5MINAR0eeFPZU1gtkXxv+h+i5szht0O/FlP4nrLfBM/6Wz7Y4QEZJRBKaIicbzizqqjzIG6B4n2Ho6+3ImAf3XLTDw==</CipherValue>
                </CipherData>
            </EncryptedKey>
        </KeyInfo>
        <CipherData>
            <CipherValue>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</CipherValue>
        </CipherData>
    </EncryptedData>
</connectionStrings>

Answer 1

我在将应用程序从 4.7.2 迁移到 8.0 时遇到了同样的问题。 我发现的唯一方法是保留一个使用旧框架编译的小应用程序，能够解密和加密我的配置文件。 我有这两种方法（m_configuration 是我的配置字段）

public void EncryptSection(string sectionName)
{

  var section = m_configuration.GetSection(sectionName);
  if (section == null)
  {
    throw new Exception("Section " + sectionName + " not found.");
  }
  if (!section.SectionInformation.IsProtected)
  {
    section.SectionInformation.ProtectSection("RsaProtectedConfigurationProvider");
    section.SectionInformation.ForceSave = true;
    m_configuration.Save(ConfigurationSaveMode.Modified);
  }
}

public void DecryptSection(string sectionName)
{
  var section = m_configuration.GetSection(sectionName);
  if (section == null)
  {
    throw new Exception("Section " + sectionName + " not found.");
  }
  if (section.SectionInformation.IsProtected)
  {
    section.SectionInformation.UnprotectSection();
    section.SectionInformation.ForceSave = true;
    m_configuration.Save(ConfigurationSaveMode.Modified);
  }
}

我将“RsaProtectedConfigurationProvider”更改为“DataProtectionConfigurationProvider”。因此，如果您先调用 DecryptSection()，然后调用 EncryptSection()，该工具将解密 RSA 加密数据，并使用新的提供程序重写它。瞧，您现在可以在 8.0 中阅读它了