Java 创建和验证签名数据时出错
我正在使用来自Wrox的一些示例代码,开始使用Java加密。代码的第24行(下面)显示了Eclipse中的一个错误Java 创建和验证签名数据时出错,java,cryptography,bouncycastle,Java,Cryptography,Bouncycastle,我正在使用来自Wrox的一些示例代码,开始使用Java加密。代码的第24行(下面)显示了Eclipse中的一个错误 X509CertSelector signerConstraints = signer.getSID(); Eclipse错误: 类型不匹配:无法从SignerId转换为X509CertSelector 以下是完整的示例: package chapter9; import java.security.cert.*; import java.util.Iterator; imp
X509CertSelector signerConstraints = signer.getSID();
Eclipse错误:
类型不匹配:无法从SignerId转换为X509CertSelector
以下是完整的示例:
package chapter9;
import java.security.cert.*;
import java.util.Iterator;
import org.bouncycastle.cms.CMSSignedData;
import org.bouncycastle.cms.SignerInformation;
import org.bouncycastle.cms.SignerInformationStore;
/**
* Base class for signed examples.
*/
public class SignedDataProcessor {
/**
* Return a boolean array representing keyUsage with digitalSignature set.
*/
static boolean[] getKeyUsageForSignature() {
boolean[] val = new boolean[9];
val[0] = true;
return val;
}
/**
* Take a CMS SignedData message and a trust anchor and determine if
* the message is signed with a valid signature from a end entity
* entity certificate recognized by the trust anchor rootCert.
*/
public static boolean isValid(
CMSSignedData signedData,
X509Certificate rootCert) throws Exception {
CertStore certsAndCRLs = signedData.getCertificatesAndCRLs("Collection", "BC");
SignerInformationStore signers = signedData.getSignerInfos();
Iterator it = signers.getSigners().iterator();
if (it.hasNext()) {
SignerInformation signer = (SignerInformation)it.next();
X509CertSelector signerConstraints = signer.getSID();
signerConstraints.setKeyUsage(getKeyUsageForSignature());
PKIXCertPathBuilderResult result =
Utils.buildPath(rootCert, signer.getSID(), certsAndCRLs);
return signer.verify(result.getPublicKey(), "BC");
}
return false;
}
}
我找到了答案:只需升级到bcprov-jdk16-145.jar,bcmail-jdk16-145.jar 请发布到示例代码的链接,您可能希望检查复制源代码,因为BouncyCastle清楚地将getSID的返回类型标识为SignerID。Nikolay,代码位于内容之上,正如我前面提到的,它来自一本书。我找到了答案:只需升级到bcprov-jdk16-145.jar,bcmail-jdk16-145.jar..请回答您自己的问题并接受它。