[英]MimeKit - Need help loading pfx file: NullReferenceException
我是 C# 和 mimekit 的新手,並嘗試從 MimeKits github README 進行基本的 S/MIME 設置。 嘗試加載 pfx 文件以解密 S/MIME 消息。 我的代碼:
public void LoadFile(string filename)
{
this.Message = MimeMessage.Load(filename);
Console.WriteLine($"Loaded {filename}.");
CryptographyContext.Register(typeof(MySecureMimeContext));
using (var ctx = new MySecureMimeContext())
{
using (var stream = File.OpenRead("/path/to/keyStore.p12"))
{
ctx.Import(stream, "testas2");
}
}
}
這是安全的 mime 上下文文件:
using System.IO;
using System.Data.SQLite;
using MimeKit.Cryptography;
namespace dotnet_smime
{
class MySecureMimeContext : DefaultSecureMimeContext
{
public MySecureMimeContext() : base(OpenDatabase("certdb.sqlite"))
{
}
static IX509CertificateDatabase OpenDatabase(string fileName)
{
var builder = new SQLiteConnectionStringBuilder();
builder.DateTimeFormat = SQLiteDateFormats.Ticks;
builder.DataSource = fileName;
if (!File.Exists(fileName))
SQLiteConnection.CreateFile(fileName);
var sqlite = new SQLiteConnection(builder.ConnectionString);
sqlite.Open();
return new SqliteCertificateDatabase(sqlite, "password");
}
}
}
當代碼調用 ctx.Import(...) 時,我得到了這個:
Unhandled exception. System.NullReferenceException: Object reference not set to an instance of an object.
at MimeKit.Cryptography.BouncyCastleCertificateExtensions.AsHex(Byte[] blob)
at MimeKit.Cryptography.X509CertificateDatabase.GetValue(X509CertificateRecord record, String columnName)
at MimeKit.Cryptography.SqlCertificateDatabase.GetInsertCommand(X509CertificateRecord record)
at MimeKit.Cryptography.X509CertificateDatabase.Add(X509CertificateRecord record)
at MimeKit.Cryptography.DefaultSecureMimeContext.Import(Stream stream, String password)
at dotnet_smime.MimePkcs7.LoadFile(String filename) in /Users/sakwaalvitre/projects/edi/dotnet-smime/MimePkcs7.cs:line 27
at dotnet_smime.Program.Main(String[] args) in /Users/sakwaalvitre/projects/edi/dotnet-smime/Program.cs:line 19
據我所知, ctx 和 stream 都已定義,並且 stream 有數據。
提前致謝!
這是 MimeKit 2.5.2 中的一個錯誤,當證書的 SubjectKeyIdentifier 為空時會發生。
從https://www.myget.org/feed/mimekit/package/nuget/MimeKit試用 nuget
我剛剛做了一個修復,2.5.2.16 版本應該包含這個修復。
如果它不起作用,請告訴我。
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