首先,您似乎使用了最新版本的Bouncy Castle中不推荐使用的构造.要添加经过身份验证/签名的

attributes,您必须将它们打包成

AttributeTable签名属性添加到签名者,如下所示：

ASN1EncodableVector signedAttributes = new ASN1EncodableVector();

signedAttributes.add(new Attribute(CMSAttributes.contentType, new DERSet(new ASN1ObjectIdentifier("1.2.840.113549.1.7.1"))));

signedAttributes.add(new Attribute(CMSAttributes.messageDigest, new DERSet(new DEROctetString(digestBytes))));

signedAttributes.add(new Attribute(CMSAttributes.signingTime, new DERSet(new DERUTCTime(signingDate))));

AttributeTable signedAttributesTable = new AttributeTable(signedAttributes);

然后在其中一个addSigner方法中使用它.正如我在开始时提到的,这种方法已被弃用,我们鼓励您使用Generators和Generator Builders.这是一个简短的例子：

/* Construct signed attributes */

ASN1EncodableVector signedAttributes = new ASN1EncodableVector();

signedAttributes.add(new Attribute(CMSAttributes.contentType, new DERSet(new ASN1ObjectIdentifier("1.2.840.113549.1.7.1"))));

signedAttributes.add(new Attribute(CMSAttributes.messageDigest, new DERSet(new DEROctetString(digestBytes))));

signedAttributes.add(new Attribute(CMSAttributes.signingTime, new DERSet(new DERUTCTime(signingDate))));

AttributeTable signedAttributesTable = new AttributeTable(signedAttributes);

signedAttributesTable.toASN1EncodableVector();

DefaultSignedAttributeTableGenerator signedAttributeGenerator = new DefaultSignedAttributeTableGenerator(signedAttributesTable);

/* Build the SignerInfo generator builder, that will build the generator... that will generate the SignerInformation... */

SignerInfoGeneratorBuilder signerInfoBuilder = new SignerInfoGeneratorBuilder(new JcaDigestCalculatorProviderBuilder().setProvider("BC").build());

signerInfoBuilder.setSignedAttributeGenerator(signedAttributeGenerator);

CMSSignedDataGenerator generator = new CMSSignedDataGenerator();

JcaContentSignerBuilder contentSigner = new JcaContentSignerBuilder("SHA1withRSA");

contentSigner.setProvider("BC");

generator.addSignerInfoGenerator(signerInfoBuilder.build(contentSigner.build(this.signingKey), new X509CertificateHolder(this.signingCert.getEncoded())));

ArrayList signingChainHolder = new ArrayList();

Iterator i = this.signingChain.iterator();

while (i.hasNext()) {

X509CertificateObject cert = (X509CertificateObject)i.next();

signingChainHolder.add(new X509CertificateHolder(cert.getEncoded()));

}

generator.addCertificates(new JcaCertStore(signingChainHolder));

generator.generate(new CMSAbsentContent(), "BC").getEncoded();

这是相当笨重,可能还没有工作(我正在编写它,并在研究一些东西时偶然发现你的问题),特别是在签署日期部分,它可能必须是新的DERSet(新的时间(新的日期)) )(更新：它适用于DERUTCTime).

一点offtopic：我仍然无法理解Signed和Authenticated属性之间的区别,Bouncy Castle已经获得了DefaultAuthenticatedAttributeTableGenerator,DefaultSignedAttributeTableGenerator类,它们与Signer完美配合.在签名时,两者之间似乎存在一些细微差别,如果不存在,SignedAttributes会默认添加signedTime. RFC提到了两种属性类型,但我找不到任何确定的东西.