Examples of RSAPrivateCrtKeySpec

java.security.spec.RSAPrivateCrtKeySpec
This class specifies an RSA private key, as defined in the PKCS#1 standard, using the Chinese Remainder Theorem (CRT) information values for efficiency. @author Jan Luehe @version 1.13 05/11/17 @see java.security.Key @see java.security.KeyFactory @see KeySpec @see PKCS8EncodedKeySpec @see RSAPrivateKeySpec @see RSAPublicKeySpec

Examples of java.security.spec.RSAPrivateCrtKeySpec

    // u dekriptovanim podacima privatni kljuc se nalazi u ASN1 strukturi nakon TLV polja od 4 bajta


    byte[] decryptedPrivateKey = new byte[plainText.length];
    System.arraycopy(plainText, 4, decryptedPrivateKey, 0, plainText.length-4);
        
    RSAPrivateCrtKeySpec privKeySpec = reconstructPrivateKey(decryptedPrivateKey);
    if(privKeySpec == null){
      throw new RSIDCardException("Greska pri rekonstrukciji privatnog kljuca.");
    }
    
    return privKeySpec;

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Examples of java.security.spec.RSAPrivateCrtKeySpec

     * @param privateKey
     * @return
     */
  private RSAPrivateCrtKeySpec reconstructPrivateKey(byte[] privateKey){
    
    RSAPrivateCrtKeySpec privKeySpec = null;
    ASN1InputStream asn1InputStream = new ASN1InputStream(privateKey);
    //parsiranje ASN1 strukture
    ArrayList<BigInteger> privateKeyParts = new ArrayList<BigInteger>();
    try {
      DERObject derObject = asn1InputStream.readObject();
      ASN1Sequence asn1Seq = (ASN1Sequence) derObject;
      
      Enumeration<DERObject> en = asn1Seq.getObjects();
      while(en.hasMoreElements()){
        DERObject obj = en.nextElement();
        DERBitString bitString = DERBitString.getInstance(obj);
        byte[] prependZero = new byte[bitString.getBytes().length+1];
        // zbog "cudnog" BigInteger konstruktora mora se dodati 0x0 na pocetak,
        // u suprotnom u pojedinim slucajevima pogresno se protumaci znak i brojevi ispadnu negativni
        prependZero[0] = 0x0;
        System.arraycopy(bitString.getBytes(), 0, prependZero, 1, bitString.getBytes().length);
        privateKeyParts.add(new BigInteger(prependZero));
      }


      // citamo sertifikat zbog podataka o javnom kljucu
      byte[] standardFileBytes = readElementaryFile(STANDARD_CERTIFICATE);
      byte[] certificateBytes = new byte[standardFileBytes.length];
      System.arraycopy(standardFileBytes, 4, certificateBytes, 0, standardFileBytes.length-4);
      ByteArrayInputStream certificateInputStream = new ByteArrayInputStream(certificateBytes);
      CertificateFactory cf = CertificateFactory.getInstance("X.509");
      X509Certificate x509Cert = (X509Certificate) cf.generateCertificate(certificateInputStream);
      
      // javni kljuc se sastoji od modula i javnog eksponenta u odgovarajucoj ASN1 strukturi
      ASN1InputStream is = new ASN1InputStream(x509Cert.getPublicKey().getEncoded());
        DERObject obj = is.readObject();
        ASN1Sequence seq = (ASN1Sequence)obj;
        SubjectPublicKeyInfo pkInfo = SubjectPublicKeyInfo.getInstance(seq);
        RSAPublicKeyStructure pubk = RSAPublicKeyStructure.getInstance(pkInfo.getPublicKey());
        BigInteger expo = pubk.getPublicExponent();
        BigInteger mod = pubk.getModulus(); 
        
        // sada imamo sve potrebne podatke za privatni kljuc
      privKeySpec = new RSAPrivateCrtKeySpec(mod,
                          expo,
                          null,
                          privateKeyParts.get(0),
                          privateKeyParts.get(1),
                          privateKeyParts.get(2),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

            DERInteger              exp2 = (DERInteger)seq.getObjectAt(7);
            DERInteger              crtCoef = (DERInteger)seq.getObjectAt(8);


            pubSpec = new RSAPublicKeySpec(
                        mod.getValue(), pubExp.getValue());
            privSpec = new RSAPrivateCrtKeySpec(
                    mod.getValue(), pubExp.getValue(), privExp.getValue(),
                    p1.getValue(), p2.getValue(),
                    exp1.getValue(), exp2.getValue(),
                    crtCoef.getValue());
        }

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Examples of java.security.spec.RSAPrivateCrtKeySpec

            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSAPublicBCPGKey        rsaPub = (RSAPublicBCPGKey)pubPk.getKey();
                RSASecretBCPGKey        rsaPriv = new RSASecretBCPGKey(in);
                RSAPrivateCrtKeySpec    rsaPrivSpec = new RSAPrivateCrtKeySpec(
                                                    rsaPriv.getModulus(), 
                                                    rsaPub.getPublicExponent(),
                                                    rsaPriv.getPrivateExponent(),
                                                    rsaPriv.getPrimeP(),
                                                    rsaPriv.getPrimeQ(),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

        //
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16));


        RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16),
            new BigInteger("9f66f6b05410cd503b2709e88115d55daced94d1a34d4e32bf824d0dde6028ae79c5f07b580f5dce240d7111f7ddb130a7945cd7d957d1920994da389f490c89", 16),
            new BigInteger("c0a0758cdf14256f78d4708c86becdead1b50ad4ad6c5c703e2168fbf37884cb", 16),
            new BigInteger("f01734d7960ea60070f1b06f2bb81bfac48ff192ae18451d5e56c734a5aab8a5", 16),
            new BigInteger("b54bb9edff22051d9ee60f9351a48591b6500a319429c069a3e335a1d6171391", 16),
            new BigInteger("d3d83daf2a0cecd3367ae6f8ae1aeb82e9ac2f816c6fc483533d8297dd7884cd", 16),
            new BigInteger("b8f52fc6f38593dabb661d3f50f8897f8106eee68b1bce78a95b132b4e5b5d19", 16));


        //
        // intermediate keys.
        //
        RSAPublicKeySpec intPubKeySpec = new RSAPublicKeySpec(
            new BigInteger("8de0d113c5e736969c8d2b047a243f8fe18edad64cde9e842d3669230ca486f7cfdde1f8eec54d1905fff04acc85e61093e180cadc6cea407f193d44bb0e9449b8dbb49784cd9e36260c39e06a947299978c6ed8300724e887198cfede20f3fbde658fa2bd078be946a392bd349f2b49c486e20c405588e306706c9017308e69", 16),
            new BigInteger("ffff", 16));




        RSAPrivateCrtKeySpec intPrivKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("8de0d113c5e736969c8d2b047a243f8fe18edad64cde9e842d3669230ca486f7cfdde1f8eec54d1905fff04acc85e61093e180cadc6cea407f193d44bb0e9449b8dbb49784cd9e36260c39e06a947299978c6ed8300724e887198cfede20f3fbde658fa2bd078be946a392bd349f2b49c486e20c405588e306706c9017308e69", 16),
            new BigInteger("ffff", 16),
            new BigInteger("7deb1b194a85bcfd29cf871411468adbc987650903e3bacc8338c449ca7b32efd39ffc33bc84412fcd7df18d23ce9d7c25ea910b1ae9985373e0273b4dca7f2e0db3b7314056ac67fd277f8f89cf2fd73c34c6ca69f9ba477143d2b0e2445548aa0b4a8473095182631da46844c356f5e5c7522eb54b5a33f11d730ead9c0cff", 16),
            new BigInteger("ef4cede573cea47f83699b814de4302edb60eefe426c52e17bd7870ec7c6b7a24fe55282ebb73775f369157726fcfb988def2b40350bdca9e5b418340288f649", 16),
            new BigInteger("97c7737d1b9a0088c3c7b528539247fd2a1593e7e01cef18848755be82f4a45aa093276cb0cbf118cb41117540a78f3fc471ba5d69f0042274defc9161265721", 16),
            new BigInteger("6c641094e24d172728b8da3c2777e69adfd0839085be7e38c7c4a2dd00b1ae969f2ec9d23e7e37090fcd449a40af0ed463fe1c612d6810d6b4f58b7bfa31eb5f", 16),
            new BigInteger("70b7123e8e69dfa76feb1236d0a686144b00e9232ed52b73847e74ef3af71fb45ccb24261f40d27f98101e230cf27b977a5d5f1f15f6cf48d5cb1da2a3a3b87f", 16),
            new BigInteger("e38f5750d97e270996a286df2e653fd26c242106436f5bab0f4c7a9e654ce02665d5a281f2c412456f2d1fa26586ef04a9adac9004ca7f913162cb28e13bf40d", 16));


        //
        // ca keys
        //
        RSAPublicKeySpec caPubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b259d2d6e627a768c94be36164c2d9fc79d97aab9253140e5bf17751197731d6f7540d2509e7b9ffee0a70a6e26d56e92d2edd7f85aba85600b69089f35f6bdbf3c298e05842535d9f064e6b0391cb7d306e0a2d20c4dfb4e7b49a9640bdea26c10ad69c3f05007ce2513cee44cfe01998e62b6c3637d3fc0391079b26ee36d5", 16),
            new BigInteger("11", 16));


        RSAPrivateCrtKeySpec   caPrivKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("b259d2d6e627a768c94be36164c2d9fc79d97aab9253140e5bf17751197731d6f7540d2509e7b9ffee0a70a6e26d56e92d2edd7f85aba85600b69089f35f6bdbf3c298e05842535d9f064e6b0391cb7d306e0a2d20c4dfb4e7b49a9640bdea26c10ad69c3f05007ce2513cee44cfe01998e62b6c3637d3fc0391079b26ee36d5", 16),
            new BigInteger("11", 16),
            new BigInteger("92e08f83cc9920746989ca5034dcb384a094fb9c5a6288fcc4304424ab8f56388f72652d8fafc65a4b9020896f2cde297080f2a540e7b7ce5af0b3446e1258d1dd7f245cf54124b4c6e17da21b90a0ebd22605e6f45c9f136d7a13eaac1c0f7487de8bd6d924972408ebb58af71e76fd7b012a8d0e165f3ae2e5077a8648e619", 16),
            new BigInteger("f75e80839b9b9379f1cf1128f321639757dba514642c206bbbd99f9a4846208b3e93fbbe5e0527cc59b1d4b929d9555853004c7c8b30ee6a213c3d1bb7415d03", 16),
            new BigInteger("b892d9ebdbfc37e397256dd8a5d3123534d1f03726284743ddc6be3a709edb696fc40c7d902ed804c6eee730eee3d5b20bf6bd8d87a296813c87d3b3cc9d7947", 16),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

        //
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16));


        RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16),
            new BigInteger("9f66f6b05410cd503b2709e88115d55daced94d1a34d4e32bf824d0dde6028ae79c5f07b580f5dce240d7111f7ddb130a7945cd7d957d1920994da389f490c89", 16),
            new BigInteger("c0a0758cdf14256f78d4708c86becdead1b50ad4ad6c5c703e2168fbf37884cb", 16),
            new BigInteger("f01734d7960ea60070f1b06f2bb81bfac48ff192ae18451d5e56c734a5aab8a5", 16),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

        //
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16));
    
        RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16),
            new BigInteger("9f66f6b05410cd503b2709e88115d55daced94d1a34d4e32bf824d0dde6028ae79c5f07b580f5dce240d7111f7ddb130a7945cd7d957d1920994da389f490c89", 16),
            new BigInteger("c0a0758cdf14256f78d4708c86becdead1b50ad4ad6c5c703e2168fbf37884cb", 16),
            new BigInteger("f01734d7960ea60070f1b06f2bb81bfac48ff192ae18451d5e56c734a5aab8a5", 16),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

        //
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16));


        RSAPrivateCrtKeySpec privKeySpec = RSA_PRIVATE_KEY_SPEC;


        //
        // set up the keys
        //
        PrivateKey          privKey;

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Examples of java.security.spec.RSAPrivateCrtKeySpec

            //
            RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
                new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
                new BigInteger("11", 16));


            RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
                new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
                new BigInteger("11", 16),
                new BigInteger("9f66f6b05410cd503b2709e88115d55daced94d1a34d4e32bf824d0dde6028ae79c5f07b580f5dce240d7111f7ddb130a7945cd7d957d1920994da389f490c89", 16),
                new BigInteger("c0a0758cdf14256f78d4708c86becdead1b50ad4ad6c5c703e2168fbf37884cb", 16),
                new BigInteger("f01734d7960ea60070f1b06f2bb81bfac48ff192ae18451d5e56c734a5aab8a5", 16),

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Examples of java.security.spec.RSAPrivateCrtKeySpec

        //
        RSAPublicKeySpec pubKeySpec = new RSAPublicKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16));


        RSAPrivateCrtKeySpec privKeySpec = new RSAPrivateCrtKeySpec(
            new BigInteger("b4a7e46170574f16a97082b22be58b6a2a629798419be12872a4bdba626cfae9900f76abfb12139dce5de56564fab2b6543165a040c606887420e33d91ed7ed7", 16),
            new BigInteger("11", 16),
            new BigInteger("9f66f6b05410cd503b2709e88115d55daced94d1a34d4e32bf824d0dde6028ae79c5f07b580f5dce240d7111f7ddb130a7945cd7d957d1920994da389f490c89", 16),
            new BigInteger("c0a0758cdf14256f78d4708c86becdead1b50ad4ad6c5c703e2168fbf37884cb", 16),
            new BigInteger("f01734d7960ea60070f1b06f2bb81bfac48ff192ae18451d5e56c734a5aab8a5", 16),

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