Examples with OAEPParameterSpec javax.crypto.spec.OAEPParameterSpec used on opensource projects

Example 6 with OAEPParameterSpec

use of javax.crypto.spec.OAEPParameterSpec in project robovm by robovm.

the class OAEPParameterSpecTest method testGetMGFParameters.

/**
     * getMGFParameters() method testing.
     */
public void testGetMGFParameters() {
    String mdName = "SHA-1";
    String mgfName = "MGF1";
    AlgorithmParameterSpec mgfSpec = MGF1ParameterSpec.SHA1;
    PSource pSrc = PSource.PSpecified.DEFAULT;
    OAEPParameterSpec ps = new OAEPParameterSpec(mdName, mgfName, mgfSpec, pSrc);
    assertTrue("The returned value does not equal to the " + "value specified in the constructor.", ps.getMGFParameters() == mgfSpec);
}

Example 7 with OAEPParameterSpec

use of javax.crypto.spec.OAEPParameterSpec in project robovm by robovm.

the class OAEPParameterSpecTest method testGetPSource.

/**
     * getPSource() method testing.
     */
public void testGetPSource() {
    String mdName = "SHA-1";
    String mgfName = "MGF1";
    AlgorithmParameterSpec mgfSpec = MGF1ParameterSpec.SHA1;
    PSource pSrc = PSource.PSpecified.DEFAULT;
    OAEPParameterSpec ps = new OAEPParameterSpec(mdName, mgfName, mgfSpec, pSrc);
    assertTrue("The returned value does not equal to the " + "value specified in the constructor.", ps.getPSource() == pSrc);
}

Example 8 with OAEPParameterSpec

use of javax.crypto.spec.OAEPParameterSpec in project XobotOS by xamarin.

the class JCERSACipher method engineInit.

protected void engineInit(int opmode, Key key, AlgorithmParameterSpec params, SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException {
    CipherParameters param;
    if (params == null || params instanceof OAEPParameterSpec) {
        if (key instanceof RSAPublicKey) {
            if (privateKeyOnly) {
                throw new InvalidKeyException("mode 1 requires RSAPrivateKey");
            }
            param = RSAUtil.generatePublicKeyParameter((RSAPublicKey) key);
        } else if (key instanceof RSAPrivateKey) {
            if (publicKeyOnly) {
                throw new InvalidKeyException("mode 2 requires RSAPublicKey");
            }
            param = RSAUtil.generatePrivateKeyParameter((RSAPrivateKey) key);
        } else {
            throw new InvalidKeyException("unknown key type passed to RSA");
        }
        if (params != null) {
            OAEPParameterSpec spec = (OAEPParameterSpec) params;
            paramSpec = params;
            if (!spec.getMGFAlgorithm().equalsIgnoreCase("MGF1") && !spec.getMGFAlgorithm().equals(PKCSObjectIdentifiers.id_mgf1.getId())) {
                throw new InvalidAlgorithmParameterException("unknown mask generation function specified");
            }
            if (!(spec.getMGFParameters() instanceof MGF1ParameterSpec)) {
                throw new InvalidAlgorithmParameterException("unkown MGF parameters");
            }
            Digest digest = JCEDigestUtil.getDigest(spec.getDigestAlgorithm());
            if (digest == null) {
                throw new InvalidAlgorithmParameterException("no match on digest algorithm: " + spec.getDigestAlgorithm());
            }
            MGF1ParameterSpec mgfParams = (MGF1ParameterSpec) spec.getMGFParameters();
            Digest mgfDigest = JCEDigestUtil.getDigest(mgfParams.getDigestAlgorithm());
            if (mgfDigest == null) {
                throw new InvalidAlgorithmParameterException("no match on MGF digest algorithm: " + mgfParams.getDigestAlgorithm());
            }
            cipher = new OAEPEncoding(new RSABlindedEngine(), digest, mgfDigest, ((PSource.PSpecified) spec.getPSource()).getValue());
        }
    } else {
        throw new IllegalArgumentException("unknown parameter type.");
    }
    if (!(cipher instanceof RSABlindedEngine)) {
        if (random != null) {
            param = new ParametersWithRandom(param, random);
        } else {
            param = new ParametersWithRandom(param, new SecureRandom());
        }
    }
    switch(opmode) {
        case Cipher.ENCRYPT_MODE:
        case Cipher.WRAP_MODE:
            cipher.init(true, param);
            break;
        case Cipher.DECRYPT_MODE:
        case Cipher.UNWRAP_MODE:
            cipher.init(false, param);
            break;
        default:
            throw new InvalidParameterException("unknown opmode " + opmode + " passed to RSA");
    }
}

Example 9 with OAEPParameterSpec

use of javax.crypto.spec.OAEPParameterSpec in project jdk8u_jdk by JetBrains.

the class OAEPParameters method engineInit.

protected void engineInit(AlgorithmParameterSpec paramSpec) throws InvalidParameterSpecException {
    if (!(paramSpec instanceof OAEPParameterSpec)) {
        throw new InvalidParameterSpecException("Inappropriate parameter specification");
    }
    OAEPParameterSpec spec = (OAEPParameterSpec) paramSpec;
    mdName = spec.getDigestAlgorithm();
    String mgfName = spec.getMGFAlgorithm();
    if (!mgfName.equalsIgnoreCase("MGF1")) {
        throw new InvalidParameterSpecException("Unsupported mgf " + mgfName + "; MGF1 only");
    }
    AlgorithmParameterSpec mgfSpec = spec.getMGFParameters();
    if (!(mgfSpec instanceof MGF1ParameterSpec)) {
        throw new InvalidParameterSpecException("Inappropriate mgf " + "parameters; non-null MGF1ParameterSpec only");
    }
    this.mgfSpec = (MGF1ParameterSpec) mgfSpec;
    PSource pSrc = spec.getPSource();
    if (pSrc.getAlgorithm().equals("PSpecified")) {
        p = ((PSource.PSpecified) pSrc).getValue();
    } else {
        throw new InvalidParameterSpecException("Unsupported pSource " + pSrc.getAlgorithm() + "; PSpecified only");
    }
}

Example 10 with OAEPParameterSpec

use of javax.crypto.spec.OAEPParameterSpec in project jdk8u_jdk by JetBrains.

the class RSACipher method engineInit.

// see JCE spec
protected void engineInit(int opmode, Key key, AlgorithmParameters params, SecureRandom random) throws InvalidKeyException, InvalidAlgorithmParameterException {
    if (params == null) {
        init(opmode, key, random, null);
    } else {
        try {
            OAEPParameterSpec spec = params.getParameterSpec(OAEPParameterSpec.class);
            init(opmode, key, random, spec);
        } catch (InvalidParameterSpecException ipse) {
            InvalidAlgorithmParameterException iape = new InvalidAlgorithmParameterException("Wrong parameter");
            iape.initCause(ipse);
            throw iape;
        }
    }
}