Java Base64類代碼示例

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
private Set<MFEntry> getAllFilesHash(JarFile jar) throws Exception {
	Set<MFEntry> fileSet = new HashSet<MFEntry>();
	Enumeration<java.util.jar.JarEntry> entries = jar.entries();
	while (entries.hasMoreElements()) {
		java.util.jar.JarEntry entry = entries.nextElement();
		String entryName = entry.getName();

		MFEntry mf = new MFEntry();
		if (!entry.isDirectory() && !entryName.endsWith(".MF") && !entryName.endsWith(".SF")
				&& !entryName.endsWith(".RSA") && !entryName.endsWith(".DSA") && !entryName.endsWith(".EC")) {
			InputStream ios = jar.getInputStream(entry);
			byte[] b = new byte[ios.available()];
			Streams.readFully(ios, b);
			mf.setFileName(entry.getName());
			mf.setDigestValue(
					java.util.Base64.getEncoder().encodeToString(EncryptUtils.sha(b, getShaTypeByMFFile())));
			collectJarFileName.add(entry.getName());
			fileSet.add(mf);
			ios.close();
		}
	}
	return fileSet;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
DOMSignatureValue(Element sigValueElem, XMLCryptoContext context)
    throws MarshalException
{
    try {
        // base64 decode signatureValue
        value = Base64.decode(sigValueElem);
    } catch (Base64DecodingException bde) {
        throw new MarshalException(bde);
    }

    Attr attr = sigValueElem.getAttributeNodeNS(null, "Id");
    if (attr != null) {
        id = attr.getValue();
        sigValueElem.setIdAttributeNode(attr, true);
    } else {
        id = null;
    }
    this.sigValueElem = sigValueElem;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
public boolean validate(XMLValidateContext validateContext)
    throws XMLSignatureException
{
    if (validateContext == null) {
        throw new NullPointerException("validateContext cannot be null");
    }
    if (validated) {
        return validationStatus;
    }
    Data data = dereference(validateContext);
    calcDigestValue = transform(data, validateContext);

    if (log.isLoggable(java.util.logging.Level.FINE)) {
        log.log(java.util.logging.Level.FINE, "Expected digest: " + Base64.encode(digestValue));
        log.log(java.util.logging.Level.FINE, "Actual digest: " + Base64.encode(calcDigestValue));
    }

    validationStatus = Arrays.equals(digestValue, calcDigestValue);
    validated = true;
    return validationStatus;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
/**
 * Tests reference validation is success or false
 *
 * @return true if reference validation is success, otherwise false
 * @throws ReferenceNotInitializedException
 * @throws XMLSecurityException
 */
public boolean verify()
    throws ReferenceNotInitializedException, XMLSecurityException {
    byte[] elemDig = this.getDigestValue();
    byte[] calcDig = this.calculateDigest(true);
    boolean equal = MessageDigestAlgorithm.isEqual(elemDig, calcDig);

    if (!equal) {
        log.log(java.util.logging.Level.WARNING, "Verification failed for URI \"" + this.getURI() + "\"");
        log.log(java.util.logging.Level.WARNING, "Expected Digest: " + Base64.encode(elemDig));
        log.log(java.util.logging.Level.WARNING, "Actual Digest: " + Base64.encode(calcDig));
    } else {
        if (log.isLoggable(java.util.logging.Level.FINE)) {
            log.log(java.util.logging.Level.FINE, "Verification successful for URI \"" + this.getURI() + "\"");
        }
    }

    return equal;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
/**
 * Base64 encodes and sets the bytes as the content of the SignatureValue
 * Node.
 *
 * @param bytes bytes to be used by SignatureValue before Base64 encoding
 */
private void setSignatureValueElement(byte[] bytes) {

    while (signatureValueElement.hasChildNodes()) {
        signatureValueElement.removeChild(signatureValueElement.getFirstChild());
    }

    String base64codedValue = Base64.encode(bytes);

    if (base64codedValue.length() > 76 && !XMLUtils.ignoreLineBreaks()) {
        base64codedValue = "\n" + base64codedValue + "\n";
    }

    Text t = this.doc.createTextNode(base64codedValue);
    signatureValueElement.appendChild(t);
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
/**
 * Method main
 *
 * @param unused
 * @throws Exception
 */
public static void main(String unused[]) throws Exception {

    CertsInFilesystemDirectoryResolver krs =
        new CertsInFilesystemDirectoryResolver(
            "data/ie/baltimore/merlin-examples/merlin-xmldsig-eighteen/certs");

    for (Iterator<Certificate> i = krs.getIterator(); i.hasNext(); ) {
        X509Certificate cert = (X509Certificate) i.next();
        byte[] ski =
            com.sun.org.apache.xml.internal.security.keys.content.x509.XMLX509SKI.getSKIBytesFromCert(cert);

        System.out.println();
        System.out.println("Base64(SKI())=                 \""
                           + Base64.encode(ski) + "\"");
        System.out.println("cert.getSerialNumber()=        \""
                           + cert.getSerialNumber().toString() + "\"");
        System.out.println("cert.getSubjectX500Principal().getName()= \""
                           + cert.getSubjectX500Principal().getName() + "\"");
        System.out.println("cert.getIssuerX500Principal().getName()=  \""
                           + cert.getIssuerX500Principal().getName() + "\"");
    }
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
public Object getAsObject(FacesContext context, UIComponent component, String value) {
    Object obj;

    try {
        int underScoreIndice = value.indexOf("_");
        String className = value.substring(0, underScoreIndice);
        String serializedObj = value.substring(underScoreIndice + 1, value.length());

        byte[] byteObj = Base64.decode(serializedObj.getBytes());
        ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(byteObj));
        obj = ois.readObject();
        ois.close();
    }
    catch (Exception e) {
        throw new ConverterException("Transient object cannot be read from stream.");
    }

    return obj;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
public String getAsString(FacesContext context, UIComponent component, Object value) {
    String retValue = null;

    if ((value != null) && (value instanceof Identifiable)) {
        Identifiable identifiable = (Identifiable) value;
        String className = identifiable.getClass().getName();

        if (identifiable.getId() == null) {
            try {
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                ObjectOutput output = new ObjectOutputStream(bos);
                output.writeObject(identifiable);
                byte[] byteArr = bos.toByteArray();
                String stream = Base64.encode(byteArr);
                retValue = identifiable.getClass().getName() + "_" + stream;
            }
            catch (IOException e) {
                throw new ConverterException("Transient object cannot be output to the stream: " + identifiable.getClass() + ".");
            }
        }
        return retValue;
    }
    throw new ConverterException("Object is null or not implemented Identifiable interface.");
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
@Override
public boolean supports(AuthenticationToken token) {
	try {
		UsernamePasswordToken upt = (UsernamePasswordToken) token;
		String username = upt.getUsername();
		char[] password = upt.getPassword();
		List<SecurityUserEntity> lists = template.query(
				"select * from  security_user where username=?",
				new Object[] { username }, new SecurityUserEntity());
		if (lists != null && lists.size() > 0) {
			SecurityUserEntity entity = lists.get(0);
			byte[] keyBytes = entity.getKey();

			if (new String(password).equals(new String(Base64
					.decode(aesCipherService.decrypt(
							Base64.decode(entity.getPassword()), keyBytes)
							.toBase64())))) {
				return true;
			}
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
	return false;
}
 

import com.sun.org.apache.xml.internal.security.utils.Base64; //導入依賴的package包/類
protected int writeEncodedBinary(int lastlinelen, byte[] buf, String newline, OutputStream os) throws Exception {
	String encoded = Base64.encode(buf).replaceAll("\r", "").replaceAll("\n", "");
	int strlen = encoded.length();
	if (lastlinelen + strlen < 76) {
		os.write(encoded.getBytes());
		lastlinelen += strlen;
	} else {
		String tmpS = encoded.substring(0, 76 - lastlinelen);
		os.write(tmpS.getBytes());
		os.write(newline.getBytes());
		encoded = encoded.substring(tmpS.length());
		lastlinelen = 0;
		while (encoded.length() >= 76) {
			tmpS = encoded.substring(0, 76 - lastlinelen);
			os.write(tmpS.getBytes());
			os.write(newline.getBytes());
			encoded = encoded.substring(tmpS.length());
		}
		if (encoded.length() > 0) {
			os.write(encoded.getBytes());
			lastlinelen = encoded.length();
		}
	}
	return lastlinelen;
}