Package org.bouncycastle.bcpg

Examples of org.bouncycastle.bcpg.RSAPublicBCPGKey

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    {
        BCPGKey                key = publicPk.getKey();
       
        if (publicPk.getVersion() <= 3)
        {
            RSAPublicBCPGKey    rK = (RSAPublicBCPGKey)key;
           
            this.keyID = rK.getModulus().longValue();
           
            try
            {
                MessageDigest   digest = MessageDigest.getInstance("MD5");
           
                byte[]  bytes = new MPInteger(rK.getModulus()).getEncoded();
                digest.update(bytes, 2, bytes.length - 2);
           
                bytes = new MPInteger(rK.getPublicExponent()).getEncoded();
                digest.update(bytes, 2, bytes.length - 2);
           
                this.fingerprint = digest.digest();
            }
            catch (NoSuchAlgorithmException e)
            {
                throw new IOException("can't find MD5");
            }

            this.keyStrength = rK.getModulus().bitLength();
        }
        else
        {
            byte[]             kBytes = publicPk.getEncodedContents();
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        if (pubKey instanceof RSAPublicKey)
        {
            RSAPublicKey    rK = (RSAPublicKey)pubKey;

            bcpgKey = new RSAPublicBCPGKey(rK.getModulus(), rK.getPublicExponent());
        }
        else if (pubKey instanceof DSAPublicKey)
        {
            DSAPublicKey    dK = (DSAPublicKey)pubKey;
            DSAParams       dP = dK.getParams();
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            switch (publicPk.getAlgorithm())
            {
            case RSA_ENCRYPT:
            case RSA_GENERAL:
            case RSA_SIGN:
                RSAPublicBCPGKey    rsaK = (RSAPublicBCPGKey)publicPk.getKey();
                RSAPublicKeySpec    rsaSpec = new RSAPublicKeySpec(rsaK.getModulus(), rsaK.getPublicExponent());
   
                fact = KeyFactory.getInstance("RSA", provider);
               
                return fact.generatePublic(rsaSpec);
            case DSA:
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            switch (pubPk.getAlgorithm())
            {
            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(),
                                                    rsaPriv.getPrimeExponentP(),
                                                    rsaPriv.getPrimeExponentQ(),
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            switch (publicPk.getAlgorithm())
            {
            case PublicKeyAlgorithmTags.RSA_ENCRYPT:
            case PublicKeyAlgorithmTags.RSA_GENERAL:
            case PublicKeyAlgorithmTags.RSA_SIGN:
                RSAPublicBCPGKey rsaK = (RSAPublicBCPGKey)publicPk.getKey();

                return new RSAKeyParameters(false, rsaK.getModulus(), rsaK.getPublicExponent());
            case PublicKeyAlgorithmTags.DSA:
                DSAPublicBCPGKey dsaK = (DSAPublicBCPGKey)publicPk.getKey();

                return new DSAPublicKeyParameters(dsaK.getY(), new DSAParameters(dsaK.getP(), dsaK.getQ(), dsaK.getG()));
            case PublicKeyAlgorithmTags.ELGAMAL_ENCRYPT:
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            switch (pubPk.getAlgorithm())
            {
            case PGPPublicKey.RSA_ENCRYPT:
            case PGPPublicKey.RSA_GENERAL:
            case PGPPublicKey.RSA_SIGN:
                RSAPublicBCPGKey rsaPub = (RSAPublicBCPGKey)pubPk.getKey();
                RSASecretBCPGKey rsaPriv = (RSASecretBCPGKey)privPk;

                return new RSAPrivateCrtKeyParameters(rsaPriv.getModulus(), rsaPub.getPublicExponent(), rsaPriv.getPrivateExponent(), rsaPriv.getPrimeP(), rsaPriv.getPrimeQ(), rsaPriv.getPrimeExponentP(), rsaPriv.getPrimeExponentQ(), rsaPriv.getCrtCoefficient());
            case PGPPublicKey.DSA:
                DSAPublicBCPGKey    dsaPub = (DSAPublicBCPGKey)pubPk.getKey();
                DSASecretBCPGKey dsaPriv = (DSASecretBCPGKey)privPk;

                return new DSAPrivateKeyParameters(dsaPriv.getX(), new DSAParameters(dsaPub.getP(), dsaPub.getQ(),  dsaPub.getG()));
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        BCPGKey key = publicPk.getKey();
        Digest digest;

        if (publicPk.getVersion() <= 3)
        {
            RSAPublicBCPGKey rK = (RSAPublicBCPGKey)key;

            try
            {
                digest = new MD5Digest();

                byte[]  bytes = new MPInteger(rK.getModulus()).getEncoded();
                digest.update(bytes, 2, bytes.length - 2);

                bytes = new MPInteger(rK.getPublicExponent()).getEncoded();
                digest.update(bytes, 2, bytes.length - 2);
            }
            catch (IOException e)
            {
                throw new PGPException("can't encode key components: " + e.getMessage(), e);
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        this.fingerprint = fingerPrintCalculator.calculateFingerprint(publicPk);

        if (publicPk.getVersion() <= 3)
        {
            RSAPublicBCPGKey    rK = (RSAPublicBCPGKey)key;
           
            this.keyID = rK.getModulus().longValue();
            this.keyStrength = rK.getModulus().bitLength();
        }
        else
        {
            this.keyID = ((long)(fingerprint[fingerprint.length - 8] & 0xff) << 56)
                            | ((long)(fingerprint[fingerprint.length - 7] & 0xff) << 48)
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            switch (publicPk.getAlgorithm())
            {
            case PublicKeyAlgorithmTags.RSA_ENCRYPT:
            case PublicKeyAlgorithmTags.RSA_GENERAL:
            case PublicKeyAlgorithmTags.RSA_SIGN:
                RSAPublicBCPGKey rsaK = (RSAPublicBCPGKey)publicPk.getKey();
                RSAPublicKeySpec rsaSpec = new RSAPublicKeySpec(rsaK.getModulus(), rsaK.getPublicExponent());

                fact = helper.createKeyFactory("RSA");

                return fact.generatePublic(rsaSpec);
            case PublicKeyAlgorithmTags.DSA:
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        if (pubKey instanceof RSAPublicKey)
        {
            RSAPublicKey    rK = (RSAPublicKey)pubKey;

            bcpgKey = new RSAPublicBCPGKey(rK.getModulus(), rK.getPublicExponent());
        }
        else if (pubKey instanceof DSAPublicKey)
        {
            DSAPublicKey    dK = (DSAPublicKey)pubKey;
            DSAParams dP = dK.getParams();
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Related Classes of org.bouncycastle.bcpg.RSAPublicBCPGKey

  • org.bouncycastle.openpgp.operator.bc.BcKeyFingerprintCalculator
  • org.bouncycastle.openpgp.operator.bc.BcPGPKeyConverter
  • org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator
  • org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyConverter
  • org.bouncycastle.openpgp.PGPPublicKey
  • org.bouncycastle.openpgp.PGPSecretKey
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