android - 使用 mimekit 在 xamarin 中为 android 和 iOS 读取 p7m 文件

Question

我正在尝试使用 bouncycastle 和 mimekit 在 Xamarin android 中为 Android 解密 .P7M 文件。当我点击“ApplicationPkcs7Mime p7m = new ApplicationPkcs7Mime(SecureMimeType.EnvelopedData, ms)”时；

Android 模拟器不知道如何从 Android 证书商店或 USB 读卡器调用它。

       public class CustomBouncyCastleSecureMimeContext : BouncyCastleSecureMimeContext
      {
          public CustomBouncyCastleSecureMimeContext() : base()
          {
          }}

更新代码

        System.Diagnostics.Debug.WriteLine("Inside DecryptMime");
        CryptographyContext.Register(typeof(BouncyCastleSecureMimeContext));
        // Payload from the add-in contains the mime content of the email on base-64 encoding   

        byte[] bytes = ResourceLoader.GetEmbeddedResourceBytes(Assembly.GetAssembly(typeof(ResourceLoader)), "smime.p7m");
        MemoryStream ms = new MemoryStream(bytes);
        ApplicationPkcs7Mime p7m = new ApplicationPkcs7Mime(SecureMimeType.EnvelopedData, ms);

        // parse data as cms enveloped
        CmsEnvelopedDataParser edParser = new CmsEnvelopedDataParser(bytes);

        // reiterate inside to find recipient info
        ICollection collections = edParser.GetRecipientInfos().GetRecipients();
        IEnumerator it = collections.GetEnumerator();
        while (it.MoveNext())
        {
            RecipientInformation info = (RecipientInformation)it.Current;
        }

有没有人有在 android 中读取 P7M 文件的经验？

多谢

标签： androidxamarinbouncycastlesmimemimekit