java - 无效 key 异常 : Key Spec Not Recognised

Question

我得到一个

InvalidKeyException: Illegal key size or default parameters

尝试运行已部署的 WAR 网络应用程序时。我在 Linux 环境中将其托管在 Tomcat 上。我已经将这两个 UnlimitedJCEPolicy 文件放入目标 /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.55.x86_64/jre/lib/security，看起来错误仍在发生。请注意，这仅在我在 linux 环境中运行时抛出。在本地，它工作正常。这是我的代码:

public static final void decryptFile(File inputFile, File outputFile) throws 
IOException, PGPException {
    // Add Bouncy Castle provider
    Security.addProvider(new BouncyCastleProvider());

    // Grab secret key that's in folder with AE classes
    Resource resource = new ClassPathResource(Env.getSecretKeyAE());
    log.debug("Resource: " + Env.getSecretKeyAE());
    File keyFileName = resource.getFile();
    log.debug("Key File Name: " + keyFileName);
    // Decryption password
    String pass = "pass";
    char[] passwd = pass.toCharArray();

    // Read files into streams
    log.info("Reading files into streams");
    InputStream keyIn = new BufferedInputStream(new FileInputStream(keyFileName));
    InputStream in = PGPUtil.getDecoderStream(new BufferedInputStream(new 
FileInputStream(inputFile)));

    // I don't even know what these do
    PGPObjectFactory pgpObjFactory = new PGPObjectFactory(in);
    PGPEncryptedDataList pgpEncryptedDataList = null;

    Object o = pgpObjFactory.nextObject();
    log.info("Checking instance of PGPEncryptedDataList");
    if (o instanceof PGPEncryptedDataList) {
        pgpEncryptedDataList = (PGPEncryptedDataList)o;
    }
    else {
        pgpEncryptedDataList = (PGPEncryptedDataList)pgpObjFactory.nextObject();
    }

    // This will be the PGPPrivateKey we use to decrypt
    log.info("Initializing secret key");
    PGPPrivateKey secretKey = null;
    PGPPublicKeyEncryptedData publicKeyEncryptedData = null;
    PGPSecretKeyRingCollection pgpSecretKeyRingCollection = new    
PGPSecretKeyRingCollection(PGPUtil.getDecoderStream(keyIn));

    // This iterates the key file as if it has many keys, this file has only one
    // This is the only way I could find to construct a PGPPrivateKey
    log.info("Iterating through key file");
    Iterator<?> it = pgpEncryptedDataList.getEncryptedDataObjects();
    while(it.hasNext() && secretKey == null) {
        publicKeyEncryptedData = (PGPPublicKeyEncryptedData) it.next();
        PGPSecretKey pgpSecKey = 
pgpSecretKeyRingCollection.getSecretKey(publicKeyEncryptedData.getKeyID());

        if (pgpSecKey != null) {
            Provider provider = Security.getProvider("BC");
            secretKey = pgpSecKey.extractPrivateKey(new   

JcePBESecretKeyDecryptorBuilder(new  
JcaPGPDigestCalculatorProviderBuilder().setProvider(provider)
.build()).setProvider(provider).build(passwd));
           }
    }
    log.info("PGPPrivateKey has been constructed");
    if (secretKey == null) {
        throw new IllegalArgumentException("secret key for message not found.");
    }
    log.info("Secret Key found!");

    if(publicKeyEncryptedData == null) {
        throw new NullPointerException("cannot continue with null public key encryption 
data.");
    }
    log.info("Public Key Encrypted Data found!");

    // More stuff I don't fully understand, I think this is just standard way to   
decrypt files once the above is all set up
    log.info("Starting actual decryption");
    //get data stream where our publicKeyDataDecrypterFactory sets ours provider to BC 
and we build our secretKey
    //secretkey is our PGPPrivateKey

    log.info("start");

    //=====================================================================
    //ERROR IS OCCURRING HERE
    InputStream clear = publicKeyEncryptedData.getDataStream(new  
JcePublicKeyDataDecryptorFactoryBuilder().setProvider("BC").build(secretKey));
    log.info("1");
    PGPObjectFactory plainFact = new PGPObjectFactory(clear);
    log.info("2");
    PGPCompressedData compressedData = (PGPCompressedData)plainFact.nextObject();
    log.info("3");
    InputStream compressedStream = new 
BufferedInputStream(compressedData.getDataStream());
    log.info("4");
    PGPObjectFactory pgpFact = new PGPObjectFactory(compressedStream);
    log.info("5");
    Object message = pgpFact.nextObject();
    log.info("6");

    if (message instanceof PGPLiteralData) {
        log.info("Our message is an instance of PGP Literal Data.");
        PGPLiteralData literalData = (PGPLiteralData)message;
        InputStream literalDataInputStream = literalData.getInputStream();
        OutputStream out = new BufferedOutputStream(new FileOutputStream(outputFile));
        Streams.pipeAll(literalDataInputStream, out);
        out.close();
    }
    else if (message instanceof PGPOnePassSignatureList) {
        log.error("encrypted message contains a signed message - not literal data.");
        throw new PGPException("encrypted message contains a signed message - not  

literal data.");
    }
    else {
        log.error("message is not a simple encrypted file - type unknown.");
        throw new PGPException("message is not a simple encrypted file - type  
unknown.");
    }
    log.info("Checking if public key encrypted data is integrity protected");
    if (publicKeyEncryptedData.isIntegrityProtected()) {
        if (!publicKeyEncryptedData.verify()) {
            throw new PGPException("message failed integrity check");
        }
    }

    keyIn.close();
    in.close();
}

使用日志，我能够发现错误发生在什么时候

InputStream clear = publicKeyEncryptedData.getDataStream(new  
JcePublicKeyDataDecryptorFactoryBuilder().setProvider("BC").build(secretKey));

但我不知道为什么。就像我说的，我已经适本地放置了 JCEUnlimited 文件，但错误仍然存​​在。

编辑 我修复了非法 key 大小问题，但现在出现“无法识别 key 规范”

编辑 关于错误“无法识别关键规范”的更多详细信息:所以正如我所说，非法 key 大小已经消失，但“无法识别 key 规范”似乎仍然是一个问题。奇怪的是，我的 encryptFile 方法运行良好，但 decryptFile 抛出错误。我不完全确定为什么。下类前又测试了一次，好像没有报错。我几乎觉得这个错误是随机发生的，这取决于将 WAR 部署到 tomcat。如果我部署我的 WAR，错误不会在某些时候发生，但如果我取消部署并使用更新的 WAR 文件重新部署，则会抛出错误。我不知道是什么原因造成的，也没有人真正知道基于研究的结果。显然这曾经是 1.5 之前 Bouncy CaSTLe 中的一个错误，但 1.5 是我正在运行的版本，所以这不是问题。如果我发现任何可能修复此错误的内容，我会发布。

Answer 1

解决:

java.security.spec.InvalidKeySpecException: key spec not recognised

修改安全提供者:

sudo nano $JAVA_HOME/jre/lib/security/java.security

添加安全提供程序:

security.provider.10=org.bouncycastle.jce.provider.BouncyCastleProvider

将bcprov-jdk15on-1.54.jar复制到:

$JAVA_HOME/jre/lib/ext/bcprov-jdk15on-1.54.jar

重新启动 Tomcat。