.NET Core 中的 SignedCms 替代方案答案

【问题标题】：SignedCms alternative in .NET Core.NET Core 中的 SignedCms 替代方案
【发布时间】：2017-04-16 13:10:27
【问题描述】：

.NET Core 中是否存在 System.Security.Cryptography.Pkcs.SignedCms 类的替代方案？还是我必须像在 WinRT 案例中那样深入研究 BouncyCastle？ Is there an alternative of SignedCMS in WinRT?

【问题讨论】：

为 BouncyCastle 体验我的朋友做好准备 :)

标签： c# .net-core

【解决方案1】：

不，目前 .NET Core 中没有与 SignedCms 等效的功能。

非常欢迎您在 https://github.com/dotnet/corefx/issues 上创建问题，以表明这是您希望被引入的类型。

【讨论】：

谢谢，在那里创建了一个问题。

【解决方案2】：

仅供参考，以防万一。似乎可以通过此NUGET 包获得对 SignedCms 和其他 S/MIME 基本 .NET 类的支持：

System.Security.Cryptography.Pkcs

即在我将此 NUGET 包添加到我的 Visual Studio 2017 (VS2017) .NET Core 项目之前，我收到了以下编译错误：

Severity    Code    Description Project File    Line    Suppression State
Error   CS0246  The type or namespace name 'CmsRecipientCollection' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'X509IssuerSerial' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'EnvelopedCms' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'SignedCms' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'SignerInfoCollection' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'ContentInfo' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'CmsRecipient' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0246  The type or namespace name 'RecipientInfo' could not be found (are you missing a using directive or an assembly reference?)
Error   CS0103  The name 'SubjectIdentifierType' does not exist in the current context
Error   CS0246  The type or namespace name 'SignerInfo' could not be found (are you missing a using directive or an assembly reference?)
Error   CS1579  foreach statement cannot operate on variables of type 'SignerInfoCollection' because 'SignerInfoCollection' does not contain a public instance definition for 'GetEnumerator'
Error   CS0246  The type or namespace name 'CmsSigner' could not be found (are you missing a using directive or an assembly reference?)

添加NUGET包后，我可以编译成功了。

【讨论】：

是的，他们前段时间将其添加到 .NET Core 平台扩展中。已经用了一段时间了。