用java代码加密私钥

Question

我已经用java代码生成了一个私钥，并将其保存为：

KeyPair keys;
    try {
        keys = KeyTools.genKeys("2048", AlgorithmConstants.KEYALGORITHM_RSA);
        //SAVE PRIVKEY
        //PrivateKey privKey = keys.getPrivate();
        //byte[] privateKeyBytes = privKey.getEncoded();
        PKCS10CertificationRequest  pkcs10 = new PKCS10CertificationRequest("SHA256WithRSA",
                CertTools.stringToBcX509Name("CN=NOUSED"), keys.getPublic(), null, keys.getPrivate());

        //Save Privatekey
        String privateKeyFilename = "C:/Users/l.calicchio/Downloads/privateKey.key";
        String password="prismaPrivateKey";
        byte[] start="-----BEGIN PRIVATE KEY-----\n".getBytes();
        byte[] end="\n-----END PRIVATE KEY-----".getBytes();
        byte[] privateKeyBytes = keys.getPrivate().getEncoded();

        byte[] encryptedPrivateKeyBytes = passwordEncrypt(password.toCharArray(), privateKeyBytes);

        File f=new File(privateKeyFilename);
        if (f.exists()){
            f.delete();
        }

        FileOutputStream fos = new FileOutputStream(f,true);
        fos.write(start);
        fos.write(Base64.encode(encryptedPrivateKeyBytes));
        fos.write(end);
        fos.close();

private static byte[] passwordEncrypt(char[] password, byte[] plaintext) throws Exception {
    String MYPBEALG = "PBEWithSHA1AndDESede";

    int count = 20;// hash iteration count
    SecureRandom random = new SecureRandom();
    byte[] salt = new byte[8];
    random.nextBytes(salt);

    // Create PBE parameter set
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, count);
    PBEKeySpec pbeKeySpec = new PBEKeySpec(password);
    SecretKeyFactory keyFac = SecretKeyFactory.getInstance(MYPBEALG);
    SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

    Cipher pbeCipher = Cipher.getInstance(MYPBEALG);

    // Initialize PBE Cipher with key and parameters
    pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);

    // Encrypt the encoded Private Key with the PBE key
    byte[] ciphertext = pbeCipher.doFinal(plaintext);

    // Now construct  PKCS #8 EncryptedPrivateKeyInfo object
    AlgorithmParameters algparms = AlgorithmParameters.getInstance(MYPBEALG);
    algparms.init(pbeParamSpec);
    EncryptedPrivateKeyInfo encinfo = new EncryptedPrivateKeyInfo(algparms, ciphertext);

    // and here we have it! a DER encoded PKCS#8 encrypted key!
    return encinfo.getEncoded();

无法加载私钥9964:error:0d0680a8:asn1编码例程:asn1_check_tlen:错误标记:.\crypto\asn1\tasn_dec。c:1319:9964:error:0d06c03a:asn1编码例程:asn1_d2i_ex_primitial:nested asn1错误或:.\crypto\asn1\tasn_dec。c:831:9964:error:0d08303a:asn1编码例程:asn1_template_noexp_d2i:nested asn1错误

我认为私钥缺少以下一行：proc-type：4,加密的“dek-info：”+“aes-256-cbc”......但是我如何添加这个（我从哪里得到这个信息？）？TNX

Answer 1

请阅读手册，MAN RSA给出了以下详细信息：

注意此命令使用传统的SSLeay兼容格式进行私钥加密：较新的应用程序应该使用更安全的PKCS#8格式，使用pkcs8实用程序。