Example usage for java.security MessageDigest getAlgorithm

List of usage examples for java.security MessageDigest getAlgorithm

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Introduction

In this page you can find the example usage for java.security MessageDigest getAlgorithm.

Prototype

public final String getAlgorithm()

Source Link

Document

Returns a string that identifies the algorithm, independent of implementation details.

Usage

From source file:org.fcrepo.http.api.FedoraBatch.java

/**
 * Retrieve multiple datastream bitstreams in a single request as a
 * multipart/mixed response.//from  ww  w .jav a 2  s.  c o  m
 *
 * @param pathList
 * @param requestedChildren
 * @param request
 * @return
 * @throws RepositoryException
 * @throws NoSuchAlgorithmException
 */
@GET
@Produces("multipart/mixed")
@Timed
public Response getBinaryContents(@PathParam("path") final List<PathSegment> pathList,
        @QueryParam("child") final List<String> requestedChildren, @Context final Request request)
        throws RepositoryException, NoSuchAlgorithmException {

    final List<Datastream> datastreams = new ArrayList<>();

    try {
        final String path = toPath(pathList);
        // TODO: wrap some of this JCR logic in an fcrepo abstraction;

        final Node node = nodeService.getObject(session, path).getNode();

        Date date = new Date();

        final MessageDigest digest = MessageDigest.getInstance("SHA-1");

        final NodeIterator ni;

        if (requestedChildren.isEmpty()) {
            ni = node.getNodes();
        } else {
            ni = node.getNodes(requestedChildren.toArray(new String[requestedChildren.size()]));
        }

        // complain if no children found
        if (ni.getSize() == 0) {
            return status(Status.BAD_REQUEST).build();
        }

        // transform the nodes into datastreams, and calculate cache header
        // data
        while (ni.hasNext()) {

            final Node dsNode = ni.nextNode();
            final Datastream ds = datastreamService.asDatastream(dsNode);

            if (!ds.hasContent()) {
                continue;
            }

            digest.update(ds.getContentDigest().toString().getBytes(UTF_8));

            if (ds.getLastModifiedDate().after(date)) {
                date = ds.getLastModifiedDate();
            }

            datastreams.add(ds);
        }

        final URI digestURI = ContentDigest.asURI(digest.getAlgorithm(), digest.digest());
        final EntityTag etag = new EntityTag(digestURI.toString());

        final Date roundedDate = new Date();
        roundedDate.setTime(date.getTime() - date.getTime() % 1000);

        ResponseBuilder builder = request.evaluatePreconditions(roundedDate, etag);

        final CacheControl cc = new CacheControl();
        cc.setMaxAge(0);
        cc.setMustRevalidate(true);

        if (builder == null) {
            final MultiPart multipart = new MultiPart();

            for (final Datastream ds : datastreams) {
                final BodyPart bodyPart = new BodyPart(ds.getContent(), MediaType.valueOf(ds.getMimeType()));
                bodyPart.setContentDisposition(ContentDisposition.type(ATTACHMENT).fileName(ds.getPath())
                        .creationDate(ds.getCreatedDate()).modificationDate(ds.getLastModifiedDate())
                        .size(ds.getContentSize()).build());
                multipart.bodyPart(bodyPart);
            }

            builder = ok(multipart, MULTIPART_FORM_DATA);
        }

        return builder.cacheControl(cc).lastModified(date).tag(etag).build();

    } finally {
        session.logout();
    }
}

From source file:org.jscep.client.Client.java

/**
 * Sends a CSR to the SCEP server for enrolling in a PKI.
 * <p>//w  w w  .  j  a  v a 2s .c  o m
 * This method enrols the provider <tt>CertificationRequest</tt> into the
 * PKI represented by the SCEP server.
 *
 * @param identity
 *            the identity of the client.
 * @param key
 *            the private key to sign the SCEP request.
 * @param csr
 *            the CSR to enrol.
 * @param profile
 *            the SCEP server profile.
 * @return the certificate store returned by the server.
 * @throws ClientException
 *             if any client error occurs.
 * @throws TransactionException
 *             if there is a problem with the SCEP transaction.
 * @see CertStoreInspector
 */
public EnrollmentResponse enrol(final X509Certificate identity, final PrivateKey key,
        final PKCS10CertificationRequest csr, final String profile)
        throws ClientException, TransactionException {
    LOGGER.debug("Enrolling certificate with CA");

    if (isSelfSigned(identity)) {
        LOGGER.debug("Certificate is self-signed");
        X500Name csrSubject = csr.getSubject();
        X500Name idSubject = X500Utils.toX500Name(identity.getSubjectX500Principal());

        if (!csrSubject.equals(idSubject)) {
            LOGGER.error(
                    "The self-signed certificate MUST use the same subject name as in the PKCS#10 request.");
        }
    }
    // TRANSACTIONAL
    // Certificate enrollment
    final Transport transport = createTransport(profile);
    PkiMessageEncoder encoder = getEncoder(identity, key, profile);
    PkiMessageDecoder decoder = getDecoder(identity, key, profile);
    final EnrollmentTransaction trans = new EnrollmentTransaction(transport, encoder, decoder, csr);

    try {
        MessageDigest digest = getCaCapabilities(profile).getStrongestMessageDigest();
        byte[] hash = digest.digest(csr.getEncoded());

        LOGGER.debug("{} PKCS#10 Fingerprint: [{}]", digest.getAlgorithm(), Hex.encodeHexString(hash));
    } catch (IOException e) {
        LOGGER.error("Error getting encoded CSR", e);
    }

    return send(trans);
}

From source file:org.lockss.hasher.TestSimpleHasher.java

public void testMakeDigest() throws Exception {
    HasherResult result = new HasherResult();
    MessageDigest digest = new SimpleHasher(null)
            .makeDigestAndRecordStream(LcapMessage.getDefaultHashAlgorithm(), false, result);

    assertTrue(digest instanceof MessageDigest);
    assertFalse(digest instanceof RecordingMessageDigest);
    assertEquals(LcapMessage.getDefaultHashAlgorithm(), digest.getAlgorithm());
    assertEquals(20, digest.getDigestLength());
    assertNull(result.getRecordFile());//w  w  w  . j  a v  a  2s  . c o m
    assertNull(result.getRecordStream());

    result = new HasherResult();
    digest = new SimpleHasher(null).makeDigestAndRecordStream(LcapMessage.getDefaultHashAlgorithm(), true,
            result);

    assertTrue(digest instanceof MessageDigest);
    assertTrue(digest instanceof RecordingMessageDigest);
    assertEquals("SHA-1", digest.getAlgorithm());
    assertEquals(20, digest.getDigestLength());
    assertTrue(result.getRecordFile().getName().startsWith("HashCUS"));
    assertTrue(result.getRecordFile().getName().endsWith(".tmp"));
    assertNotNull(result.getRecordStream());
    // Clean up the result file.
    result.getRecordFile().delete();
    IOUtil.safeClose(result.getRecordStream());

    result = new HasherResult();
    digest = new SimpleHasher(null).makeDigestAndRecordStream("SHA", false, result);

    assertTrue(digest instanceof MessageDigest);
    assertFalse(digest instanceof RecordingMessageDigest);
    assertEquals("SHA", digest.getAlgorithm());
    assertEquals(20, digest.getDigestLength());
    assertNull(result.getRecordFile());
    assertNull(result.getRecordStream());

    result = new HasherResult();
    digest = new SimpleHasher(null).makeDigestAndRecordStream("SHA1", false, result);

    assertTrue(digest instanceof MessageDigest);
    assertFalse(digest instanceof RecordingMessageDigest);
    assertEquals("SHA1", digest.getAlgorithm());
    assertEquals(20, digest.getDigestLength());
    assertNull(result.getRecordFile());
    assertNull(result.getRecordStream());

    result = new HasherResult();
    digest = new SimpleHasher(null).makeDigestAndRecordStream("MD5", false, result);

    assertTrue(digest instanceof MessageDigest);
    assertFalse(digest instanceof RecordingMessageDigest);
    assertEquals("MD5", digest.getAlgorithm());
    assertEquals(16, digest.getDigestLength());
    assertNull(result.getRecordFile());
    assertNull(result.getRecordStream());

    result = new HasherResult();
    digest = new SimpleHasher(null).makeDigestAndRecordStream("SHA-256", false, result);

    assertTrue(digest instanceof MessageDigest);
    assertFalse(digest instanceof RecordingMessageDigest);
    assertEquals("SHA-256", digest.getAlgorithm());
    assertEquals(32, digest.getDigestLength());
    assertNull(result.getRecordFile());
    assertNull(result.getRecordStream());

    try {
        digest = new SimpleHasher(null).makeDigestAndRecordStream(null, false, result);
        fail("Null algorithm should throw NullPointerException");
    } catch (NullPointerException npe) {
        // Expected.
    }

    try {
        digest = new SimpleHasher(null).makeDigestAndRecordStream("SHA256", false, result);
        fail("Invalid algorithm should throw NoSuchAlgorithmException");
    } catch (NoSuchAlgorithmException nsae) {
        // Expected.
    }

    try {
        digest = new SimpleHasher(null).makeDigestAndRecordStream("FGL", false, result);
        fail("Invalid algorithm should throw NoSuchAlgorithmException");
    } catch (NoSuchAlgorithmException nsae) {
        // Expected.
    }
}

From source file:org.projectforge.common.Crypt.java

private static String encode(final String s, final String alg) {
    try {//from w w  w  . jav a 2s.c  om
        final MessageDigest md = MessageDigest.getInstance(alg);
        md.reset();
        md.update(s.getBytes());
        final byte[] d = md.digest();

        String ret = "";

        for (int val : d) {
            final char[] hex = new char[] { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C',
                    'D', 'E', 'F' };
            if (val < 0) {
                val = 256 + val;
            }
            final char hi = hex[val / 16];
            final char lo = hex[val % 16];
            ret = hi + "" + lo + ret;
        }
        return md.getAlgorithm() + '{' + ret + '}';
    } catch (final NoSuchAlgorithmException ex) {
        log.fatal(ex);
        return "NONE{" + s + "}";
    }
}

From source file:org.sonatype.nexus.proxy.maven.maven2.M2GroupRepository.java

protected void storeMergedMetadataItemDigest(ResourceStoreRequest request, MessageDigest digest,
        List<StorageItem> sources)
        throws IOException, UnsupportedStorageOperationException, IllegalOperationException {
    String digestFileName = request.getRequestPath() + "." + digest.getAlgorithm().toLowerCase();

    // see nexus-configuration mime-types.properties (defaulted to text/plain, as central reports them)
    String mimeType = getMimeUtil().getMimeType(digestFileName);

    byte[] bytes = (new String(Hex.encodeHex(digest.digest())) + "\n").getBytes("UTF-8");

    ContentLocator contentLocator = new ByteArrayContentLocator(bytes, mimeType);

    ResourceStoreRequest req = new ResourceStoreRequest(digestFileName);

    req.getRequestContext().setParentContext(request.getRequestContext());

    // Metadata checksum files are not composite ones, they are derivatives of the Metadata (and metadata file _is_
    // composite one)
    DefaultStorageFileItem digestFileItem = new DefaultStorageFileItem(this, req, true, false, contentLocator);

    storeItem(false, digestFileItem);/*from  w  w  w . jav a 2 s.  c o m*/
}

From source file:utils.Hash.java

/**
 * Outputs a MD5 digest//from w ww. j av a  2s  . co m
 * @param toHash String to hash
 * @return Hashed String
 */
public static String md5ThisString(String toHash) {
    String hashed = null;
    byte[] byteArray = new byte[512];
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("MD5");
        log.debug("Hashing Value With " + md.getAlgorithm());
        byteArray = toHash.getBytes();
        md.update(byteArray);
        byteArray = md.digest();
    } catch (NoSuchAlgorithmException e) {
        log.fatal("Could not Find MD5 Algorithm: " + e.toString());
    }
    hashed = new String(byteArray, Charset.forName("US-ASCII"));

    return hashed;
}

From source file:utils.Hash.java

/**
 * Outputs a SHA256 digest//from   w  ww  .  j  a v  a2s  . co m
 * @param toHash String to hash
 * @return Hashed string
 */
public static String thisString(String toHash) {
    String hashed = null;
    byte[] byteArray = new byte[256];
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA");
        log.debug("Hashing Value With " + md.getAlgorithm());
        byteArray = toHash.getBytes();
        md.update(byteArray);
        byteArray = md.digest();
    } catch (NoSuchAlgorithmException e) {
        log.fatal("Could not Find SHA Algorithm: " + e.toString());
    }
    hashed = new String(byteArray, Charset.forName("US-ASCII"));

    return hashed;
}