c# - 签名和创建 asn1 签名消息 - Bouncycastle

Question

是否有任何关于如何签署文件并使用 bouncycastle 将其包装在 asn1 pkcs7 包中的好的教程？

Answer 1

一段时间后，我在 bouncyCastle 应用程序中的示例中发现了它是如何完成的。

它实际上比我在 IText 中发现的要简单和直接（没有去掉框架本身的友好性）。

代码类似于：

        AsymmetricCipherKeyPair signaturePair;
        X509Certificate signatureCert;

        IList certList = new ArrayList();
        IList crlList = new ArrayList();
        CmsProcessable msg = new CmsProcessableByteArray(Encoding.ASCII.GetBytes("I hate hello world!"));

        certList.Add(signatureCert);
        certList.Add(OrigCert);

        crlList.Add(SignCrl);

        IX509Store x509Certs = X509StoreFactory.Create(
            "Certificate/Collection",
            new X509CollectionStoreParameters(certList));
        IX509Store x509Crls = X509StoreFactory.Create(
            "CRL/Collection",
            new X509CollectionStoreParameters(crlList));

        CmsSignedDataGenerator gen = new CmsSignedDataGenerator();

        gen.AddSigner(signaturePair.Private, signatureCert, CmsSignedDataGenerator.DigestSha1);

        gen.AddCertificates(x509Certs);
        gen.AddCrls(x509Crls);

        CmsSignedData signedData = gen.Generate(msg, true);

        //saving in BER encoding
        Stream stream = new MemoryStream(signedData.GetEncoded());