java.security.spec.AlgorithmParameterSpec Java Examples

/**
 * DES算法，加密
 *
 * @param data 待加密字符串
 * @param key  加密私钥，长度不能够小于8位
 * @return 加密后的字节数组，一般结合Base64编码使用
 * @throws InvalidAlgorithmParameterException 
 * @throws Exception 
 */
public static String encrypt(String key,String data) {
	if(data == null)
		return null;
	try{
 	DESKeySpec dks = new DESKeySpec(key.getBytes());	    	
 	SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
     //key的长度不能够小于8位字节
     Key secretKey = keyFactory.generateSecret(dks);
     Cipher cipher = Cipher.getInstance(ALGORITHM_DES);
     AlgorithmParameterSpec paramSpec = new IvParameterSpec(IV_PARAMS_BYTES);;
     cipher.init(Cipher.ENCRYPT_MODE, secretKey,paramSpec);           
     byte[] bytes = cipher.doFinal(data.getBytes());            
     return byte2hex(bytes);
	}catch(Exception e){
		throw new RuntimeException(e);
	}
}
 

/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
 

protected void engineInit(AlgorithmParameterSpec params,
        SecureRandom random) throws InvalidAlgorithmParameterException {
    if (params instanceof TlsKeyMaterialParameterSpec == false) {
        throw new InvalidAlgorithmParameterException(MSG);
    }
    this.spec = (TlsKeyMaterialParameterSpec)params;
    try {
        p11Key = P11SecretKeyFactory.convertKey
                        (token, spec.getMasterSecret(), "TlsMasterSecret");
    } catch (InvalidKeyException e) {
        throw new InvalidAlgorithmParameterException("init() failed", e);
    }
    version = (spec.getMajorVersion() << 8) | spec.getMinorVersion();
    if ((version < 0x0300) && (version > 0x0302)) {
        throw new InvalidAlgorithmParameterException
                ("Only SSL 3.0, TLS 1.0, and TLS 1.1 are supported");
    }
    // we assume the token supports both the CKM_SSL3_* and the CKM_TLS_*
    // mechanisms
}
 

/**
 * Constructs a parameter set for OAEP padding as defined in
 * the PKCS #1 standard using the specified message digest
 * algorithm <code>mdName</code>, mask generation function
 * algorithm <code>mgfName</code>, parameters for the mask
 * generation function <code>mgfSpec</code>, and source of
 * the encoding input P <code>pSrc</code>.
 *
 * @param mdName the algorithm name for the message digest.
 * @param mgfName the algorithm name for the mask generation
 * function.
 * @param mgfSpec the parameters for the mask generation function.
 * If null is specified, null will be returned by getMGFParameters().
 * @param pSrc the source of the encoding input P.
 * @exception NullPointerException if <code>mdName</code>,
 * <code>mgfName</code>, or <code>pSrc</code> is null.
 */
public OAEPParameterSpec(String mdName, String mgfName,
                         AlgorithmParameterSpec mgfSpec,
                         PSource pSrc) {
    if (mdName == null) {
        throw new NullPointerException("digest algorithm is null");
    }
    if (mgfName == null) {
        throw new NullPointerException("mask generation function " +
                                       "algorithm is null");
    }
    if (pSrc == null) {
        throw new NullPointerException("source of the encoding input " +
                                       "is null");
    }
    this.mdName =  mdName;
    this.mgfName =  mgfName;
    this.mgfSpec =  mgfSpec;
    this.pSrc =  pSrc;
}
 

@Override
protected void engineInit(
    Key                     key,
    AlgorithmParameterSpec  params,
    SecureRandom            random)
    throws InvalidKeyException, InvalidAlgorithmParameterException
{
    if (!(key instanceof ECPrivateKey))
    {
        throw new InvalidKeyException("ECKeyAgreement requires ECPrivateKey for initialisation");
    }

    privKey = ECUtil.generatePrivateKeyParameter((PrivateKey)key);

    agreement.init(privKey);
}
 

protected void engineInit(
    int                 opmode,
    Key key,
    AlgorithmParameters params,
    SecureRandom random)
throws InvalidKeyException, InvalidAlgorithmParameterException
{
    AlgorithmParameterSpec paramSpec = null;

    if (params != null)
    {
        try
        {
            paramSpec = params.getParameterSpec(OAEPParameterSpec.class);
        }
        catch (InvalidParameterSpecException e)
        {
            throw new InvalidAlgorithmParameterException("cannot recognise parameters: " + e.toString(), e);
        }
    }

    engineParams = params;
    engineInit(opmode, key, paramSpec, random);
}
 

/**
 * Initializes this parameter generator with a set of
 * algorithm-specific parameter generation values.
 *
 * @param genParamSpec the set of algorithm-specific parameter generation values
 * @param random the source of randomness
 *
 * @exception InvalidAlgorithmParameterException if the given parameter
 * generation values are inappropriate for this parameter generator
 */
protected void engineInit(AlgorithmParameterSpec genParamSpec,
                          SecureRandom random)
    throws InvalidAlgorithmParameterException {
    if (!(genParamSpec instanceof DSAGenParameterSpec)) {
        throw new InvalidAlgorithmParameterException("Invalid parameter");
    }
    DSAGenParameterSpec dsaGenParams = (DSAGenParameterSpec) genParamSpec;
    int primePLen = dsaGenParams.getPrimePLength();
    if (primePLen > 2048) {
        throw new InvalidParameterException
            ("No support for prime size " + primePLen);
    }
    // directly initialize using the already validated values
    this.valueL = primePLen;
    this.valueN = dsaGenParams.getSubprimeQLength();
    this.seedLen = dsaGenParams.getSeedLength();
    this.random = random;
}
 

protected <T extends AlgorithmParameterSpec>
    T engineGetParameterSpec(Class<T> paramSpec)
    throws InvalidParameterSpecException
{
        try {
            Class<?> dsaParamSpec = Class.forName
                ("java.security.spec.DSAParameterSpec");
            if (dsaParamSpec.isAssignableFrom(paramSpec)) {
                return paramSpec.cast(
                        new DSAParameterSpec(this.p, this.q, this.g));
            } else {
                throw new InvalidParameterSpecException
                    ("Inappropriate parameter Specification");
            }
        } catch (ClassNotFoundException e) {
            throw new InvalidParameterSpecException
                ("Unsupported parameter specification: " + e.getMessage());
        }
}
 

public void initialize(AlgorithmParameterSpec params, SecureRandom random)
        throws InvalidAlgorithmParameterException {

    if (params instanceof RSAKeyGenParameterSpec == false) {
        throw new InvalidAlgorithmParameterException
            ("Params must be instance of RSAKeyGenParameterSpec");
    }

    RSAKeyGenParameterSpec rsaSpec = (RSAKeyGenParameterSpec)params;
    int tmpKeySize = rsaSpec.getKeysize();
    BigInteger tmpPublicExponent = rsaSpec.getPublicExponent();

    if (tmpPublicExponent == null) {
        tmpPublicExponent = RSAKeyGenParameterSpec.F4;
    } else {
        if (tmpPublicExponent.compareTo(RSAKeyGenParameterSpec.F0) < 0) {
            throw new InvalidAlgorithmParameterException
                    ("Public exponent must be 3 or larger");
        }
        if (tmpPublicExponent.bitLength() > tmpKeySize) {
            throw new InvalidAlgorithmParameterException
                    ("Public exponent must be smaller than key size");
        }
    }

    // do not allow unreasonably large key sizes, probably user error
    try {
        RSAKeyFactory.checkKeyLengths(tmpKeySize, tmpPublicExponent,
            512, 64 * 1024);
    } catch (InvalidKeyException e) {
        throw new InvalidAlgorithmParameterException(
            "Invalid key sizes", e);
    }

    this.keySize = tmpKeySize;
    this.publicExponent = tmpPublicExponent;
    this.random = random;
}
 

public TransportCipher createTransportCipher(String algorithm, int mode, SecretKeySpec key_spec, AlgorithmParameterSpec params) throws TransportException {
 try {
   controller.networkmanager.TransportCipher cipher = new controller.networkmanager.TransportCipher(algorithm, mode, key_spec, params);
  return new TransportCipherImpl(cipher);
 }
 catch (Exception e) {
  throw new TransportException(e);
 }
}
 

private InputStream getCypherStream(InputStream in, byte[] key, byte[] iv) throws Exception {
	Cipher cipher;
	cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
	Key cipherKey = new SecretKeySpec(key, "AES");
	AlgorithmParameterSpec cipherIV = new IvParameterSpec(iv);
	cipher.init(Cipher.DECRYPT_MODE, cipherKey, cipherIV);
	return new CipherInputStream(in, cipher);
}
 

protected void engineInit(AlgorithmParameterSpec paramSpec)
    throws InvalidParameterSpecException
{
   if (!(paramSpec instanceof PBEParameterSpec)) {
       throw new InvalidParameterSpecException
           ("Inappropriate parameter specification");
   }
   this.salt = ((PBEParameterSpec)paramSpec).getSalt().clone();
   this.iCount = ((PBEParameterSpec)paramSpec).getIterationCount();
   this.cipherParam = ((PBEParameterSpec)paramSpec).getParameterSpec();
}
 

/**
 * getDigestAlgorithm() method testing.
 */
public void testGetDigestAlgorithm() {
    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.getDigestAlgorithm().equals(mdName));
}
 

/**
 * @inheritDoc
 */
protected void engineSetParameter(AlgorithmParameterSpec params)
    throws XMLSignatureException {
    try {
        this.signatureAlgorithm.setParameter(params);
    } catch (InvalidAlgorithmParameterException ex) {
        throw new XMLSignatureException("empty", ex);
    }
}
 

@Override
public int hashCode() {
    int result = 17;
    result = 31 * result + getAlgorithm().hashCode();
    AlgorithmParameterSpec spec = getParameterSpec();
    if (spec != null) {
        result = 31 * result + spec.hashCode();
    }

    return result;
}
 

@Override
public void initialize(AlgorithmParameterSpec params, SecureRandom random)
        throws InvalidAlgorithmParameterException {

    ECParameterSpec ecSpec = null;

    if (params instanceof ECParameterSpec) {
        ECParameterSpec ecParams = (ECParameterSpec) params;
        ecSpec = ECUtil.getECParameterSpec(null, ecParams);
        if (ecSpec == null) {
            throw new InvalidAlgorithmParameterException(
                "Unsupported curve: " + params);
        }
    } else if (params instanceof ECGenParameterSpec) {
        String name = ((ECGenParameterSpec) params).getName();
        ecSpec = ECUtil.getECParameterSpec(null, name);
        if (ecSpec == null) {
            throw new InvalidAlgorithmParameterException(
                "Unknown curve name: " + name);
        }
    } else {
        throw new InvalidAlgorithmParameterException(
            "ECParameterSpec or ECGenParameterSpec required for EC");
    }

    // Not all known curves are supported by the native implementation
    ensureCurveIsSupported(ecSpec);
    this.params = ecSpec;

    this.keySize = ecSpec.getCurve().getField().getFieldSize();
    this.random = random;
}
 

protected void engineInit(
    AlgorithmParameterSpec  genParamSpec,
    SecureRandom            random)
    throws InvalidAlgorithmParameterException
{
    throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for DES parameter generation.");
}
 

@Override
public void initVerify(Signature s, PublicKey publicKey,
        AlgorithmParameterSpec params)
        throws InvalidKeyException,
        InvalidAlgorithmParameterException {
    s.initVerify(publicKey, params);
}
 

GcmReadCipher(Authenticator authenticator,
        ProtocolVersion protocolVersion,
        SSLCipher sslCipher, String algorithm,
        Key key, AlgorithmParameterSpec params,
        SecureRandom random) throws GeneralSecurityException {
    super(authenticator, protocolVersion);
    this.cipher = Cipher.getInstance(algorithm);
    this.tagSize = sslCipher.tagSize;
    this.key = key;
    this.fixedIv = ((IvParameterSpec)params).getIV();
    this.recordIvSize = sslCipher.ivSize - sslCipher.fixedIvSize;
    this.random = random;

    // DON'T initialize the cipher for AEAD!
}
 

/**
 * Creates a <code>DOMDigestMethod</code>.
 *
 * @param params the algorithm-specific params (may be <code>null</code>)
 * @throws InvalidAlgorithmParameterException if the parameters are not
 *    appropriate for this digest method
 */
DOMDigestMethod(AlgorithmParameterSpec params)
    throws InvalidAlgorithmParameterException
{
    if (params != null && !(params instanceof DigestMethodParameterSpec)) {
        throw new InvalidAlgorithmParameterException
            ("params must be of type DigestMethodParameterSpec");
    }
    checkParams((DigestMethodParameterSpec)params);
    this.params = (DigestMethodParameterSpec)params;
}
 

/**
 * @inheritDoc
 */
protected void engineSetParameter(AlgorithmParameterSpec params)
    throws XMLSignatureException {
    try {
        this.signatureAlgorithm.setParameter(params);
    } catch (InvalidAlgorithmParameterException ex) {
        throw new XMLSignatureException("empty", ex);
    }
}
 

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");
    }
}
 

protected void engineInit(AlgorithmParameterSpec paramSpec)
     throws InvalidParameterSpecException
{
    if (!(paramSpec instanceof PBEParameterSpec)) {
        throw new InvalidParameterSpecException
            ("Inappropriate parameter specification");
    }
    this.salt = ((PBEParameterSpec)paramSpec).getSalt().clone();
    this.iCount = ((PBEParameterSpec)paramSpec).getIterationCount();
    this.cipherParam = ((PBEParameterSpec)paramSpec).getParameterSpec();
 }
 

protected void engineInit(
    AlgorithmParameterSpec paramSpec)
    throws InvalidParameterSpecException
{
    if (!(paramSpec instanceof PBEParameterSpec))
    {
        throw new InvalidParameterSpecException("PBEParameterSpec required to initialise a PBKDF2 PBE parameters algorithm parameters object");
    }

    PBEParameterSpec    pbeSpec = (PBEParameterSpec)paramSpec;

    this.params = new PBKDF2Params(pbeSpec.getSalt(),
                        pbeSpec.getIterationCount());
}
 

public void marshalParams(XMLStructure parent, XMLCryptoContext context)
    throws MarshalException
{
    super.marshalParams(parent, context);
    AlgorithmParameterSpec spec = getParameterSpec();
    if (spec == null) {
        return;
    }

    String prefix = DOMUtils.getNSPrefix(context,
                                         CanonicalizationMethod.EXCLUSIVE);
    Element eElem = DOMUtils.createElement(ownerDoc,
                                           "InclusiveNamespaces",
                                           CanonicalizationMethod.EXCLUSIVE,
                                           prefix);
    if (prefix == null || prefix.length() == 0) {
        eElem.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
                             CanonicalizationMethod.EXCLUSIVE);
    } else {
        eElem.setAttributeNS("http://www.w3.org/2000/xmlns/",
                               "xmlns:" + prefix,
                               CanonicalizationMethod.EXCLUSIVE);
    }

    ExcC14NParameterSpec params = (ExcC14NParameterSpec)spec;
    StringBuffer prefixListAttr = new StringBuffer("");
    @SuppressWarnings("unchecked")
    List<String> prefixList = params.getPrefixList();
    for (int i = 0, size = prefixList.size(); i < size; i++) {
        prefixListAttr.append(prefixList.get(i));
        if (i < size - 1) {
            prefixListAttr.append(" ");
        }
    }
    DOMUtils.setAttribute(eElem, "PrefixList", prefixListAttr.toString());
    this.inclusiveNamespaces = prefixListAttr.toString();
    transformElem.appendChild(eElem);
}
 

private void initCiphers(String algo, SecretKey key,
        AlgorithmParameterSpec aps) throws NoSuchAlgorithmException,
        NoSuchPaddingException, InvalidKeyException,
        InvalidAlgorithmParameterException {
    Provider provider = Security.getProvider("SunJCE");
    if (provider == null) {
        throw new RuntimeException("SunJCE provider does not exist.");
    }
    Cipher ci1 = Cipher.getInstance(algo, provider);
    ci1.init(Cipher.ENCRYPT_MODE, key, aps);
    pair[0] = ci1;
    Cipher ci2 = Cipher.getInstance(algo, provider);
    ci2.init(Cipher.DECRYPT_MODE, key, aps);
    pair[1] = ci2;
}
 

@Override
public int hashCode() {
    int result = 17;
    result = 31 * result + getAlgorithm().hashCode();
    AlgorithmParameterSpec spec = getParameterSpec();
    if (spec != null) {
        result = 31 * result + spec.hashCode();
    }

    return result;
}
 

protected void engineInit(Key key, AlgorithmParameterSpec params,
        SecureRandom random) throws InvalidKeyException,
        InvalidAlgorithmParameterException {
    if (params != null) {
        throw new InvalidAlgorithmParameterException
                    ("Parameters not supported");
    }
    engineInit(key, random);
}
 

SHA512(AlgorithmParameterSpec params)
    throws InvalidAlgorithmParameterException {
    super(params);
}
 

abstract SecretKey intSecurityKey(AlgorithmParameterSpec[] spec)
throws InvalidKeyException, InvalidKeySpecException;