Example usage for com.google.common.hash Hashing sha256

Introduction

In this page you can find the example usage for com.google.common.hash Hashing sha256.

Prototype

public static HashFunction sha256() 

Source Link

Document

Returns a hash function implementing the SHA-256 algorithm (256 hash bits) by delegating to the SHA-256 MessageDigest .

Usage

From source file:org.apache.gobblin.data.management.conversion.hive.avro.AvroSchemaManager.java

/**
 * If url for schema already exists, return the url. If not create a new temporary schema file and return a the url.
 *///from   w w w . j a v  a  2  s  .c o  m
private Path getOrGenerateSchemaFile(Schema schema) throws IOException {

    Preconditions.checkNotNull(schema, "Avro Schema should not be null");

    String hashedSchema = Hashing.sha256().hashString(schema.toString(), StandardCharsets.UTF_8).toString();

    if (!this.schemaPaths.containsKey(hashedSchema)) {

        Path schemaFilePath = new Path(this.schemaDir, String.valueOf(System.currentTimeMillis() + ".avsc"));
        AvroUtils.writeSchemaToFile(schema, schemaFilePath, fs, true);

        this.schemaPaths.put(hashedSchema, schemaFilePath);
    }

    return this.schemaPaths.get(hashedSchema);
}

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From source file:io.prestosql.operator.scalar.VarbinaryFunctions.java

@Description("compute sha256 hash")
@ScalarFunction/*from  w w  w.  j ava 2 s. com*/
@SqlType(StandardTypes.VARBINARY)
public static Slice sha256(@SqlType(StandardTypes.VARBINARY) Slice slice) {
    return Slices.wrappedBuffer(Hashing.sha256().hashBytes(slice.getBytes()).asBytes());
}

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From source file:org.sonatype.nexus.yum.internal.MetadataProcessor.java

/**
 * Read and process all location entries using provided processor. If there are changes to locations will save the
 * new primary.xml./*from w w  w . ja va 2  s.co  m*/
 *
 * @param repository repository containing primary.xml
 * @param processor  location processor
 * @param repoMDDoc  parsed repomx.xml
 * @return path of primary.xml
 */
private static String processPrimary(final Repository repository, final Processor processor,
        final Document repoMDDoc) throws Exception {
    XPath xPath = XPathFactory.newInstance().newXPath();
    String primaryHref = xPath.compile("/repomd/data[@type='primary']/location/@href").evaluate(repoMDDoc);
    String primaryChecksum = xPath.compile("/repomd/data[@type='primary']/checksum").evaluate(repoMDDoc);

    DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
    DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();

    StorageFileItem primaryItem = (StorageFileItem) repository.retrieveItem(false,
            new ResourceStoreRequest("/" + primaryHref));
    Document doc;
    boolean changed = false;
    try (InputStream primaryIn = new GZIPInputStream(new BufferedInputStream(primaryItem.getInputStream()))) {
        doc = documentBuilder.parse(primaryIn);
        NodeList locations = doc.getElementsByTagName("location");
        if (locations != null) {
            for (int i = 0; i < locations.getLength(); i++) {
                Element location = (Element) locations.item(i);
                if (processor.process(location)) {
                    changed = true;
                }
            }
        }
    }
    if (changed) {
        log.debug("Rewriting locations in {}:primary.xml", repository.getId());
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        transformer.transform(new DOMSource(doc), new StreamResult(out));
        byte[] primaryContent = compress(out.toByteArray());
        if (primaryHref.contains(primaryChecksum)) {
            repository.deleteItem(false, new ResourceStoreRequest("/" + primaryHref));
            primaryHref = primaryHref.replace(primaryChecksum,
                    Hashing.sha256().hashBytes(primaryContent).toString());
        }
        storeItem(repository, primaryHref, primaryContent, "application/x-gzip");
    }
    return primaryHref;
}

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From source file:com.google.cloud.storage.spi.DefaultStorageRpc.java

private static void setEncryptionHeaders(HttpHeaders headers, String headerPrefix, Map<Option, ?> options) {
    String key = CUSTOMER_SUPPLIED_KEY.getString(options);
    if (key != null) {
        BaseEncoding base64 = BaseEncoding.base64();
        HashFunction hashFunction = Hashing.sha256();
        headers.set(headerPrefix + "algorithm", "AES256");
        headers.set(headerPrefix + "key", key);
        headers.set(headerPrefix + "key-sha256",
                base64.encode(hashFunction.hashBytes(base64.decode(key)).asBytes()));
    }/* w w  w . java 2s. com*/
}

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From source file:org.apache.james.mailrepository.MailRepositoryContract.java

@Test
default void retrieveBigMailShouldHaveSameHash() throws Exception {
    MailRepository testee = retrieveRepository();
    String bigString = Strings.repeat("my mail is big ?", 1_000_000);
    Mail mail = createMail(MAIL_1, bigString);
    testee.store(mail);/*w w  w .  j a v  a 2s . c o m*/

    Mail actual = testee.retrieve(MAIL_1);

    assertThat(Hashing.sha256().hashString((String) actual.getMessage().getContent(), StandardCharsets.UTF_8))
            .isEqualTo(Hashing.sha256().hashString(bigString, StandardCharsets.UTF_8));
}

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From source file:io.dockstore.webservice.resources.UserResource.java

@POST
@Timed/*ww  w . j  ava  2 s . c o m*/
@UnitOfWork
@ApiOperation(value = "Add new user", notes = "Register a new user", response = User.class)
public User registerUser(@QueryParam("username") String username, @QueryParam("is_admin") boolean isAdmin) {
    final Random random = new Random();
    final int bufferLength = 1024;
    final byte[] buffer = new byte[bufferLength];
    random.nextBytes(buffer);
    String randomString = BaseEncoding.base64Url().omitPadding().encode(buffer);
    final String accessToken = Hashing.sha256().hashString(username + randomString, Charsets.UTF_8).toString();

    User user = new User();
    user.setUsername(username);
    user.setIsAdmin(isAdmin);
    long userId = userDAO.create(user);

    Token token = new Token();
    token.setTokenSource(TokenType.DOCKSTORE.toString());
    token.setContent(accessToken);
    token.setUsername(username);
    token.setUserId(userId);
    tokenDAO.create(token);

    return userDAO.findById(userId);
}

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From source file:org.apache.james.mailrepository.file.MBoxMailRepository.java

/**
 * Generate a hex representation of a SHA-256 checksum on the email body
 *//*from   w w  w  .  jav  a  2 s. c  o  m*/
private String generateKeyValue(String emailBody) {
    return Hashing.sha256().hashUnencodedChars(emailBody).toString();
}

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From source file:inflor.core.fcs.FCSFileReader.java

private HashMap<String, String> readHeader() throws IOException {
    // Delimiter is first UTF-8 character in the text section
    final byte[] delimiterBytes = new byte[1];
    fcsFile.seek(beginText);// w w  w. j av a 2  s.c o  m
    fcsFile.read(delimiterBytes);
    final String delimiter = new String(delimiterBytes);

    // Read the rest of the text bytes, this will contain the keywords
    final int textLength = endText - beginText + 1;
    final byte[] keywordBytes = new byte[textLength];

    fcsFile.read(keywordBytes);
    String rawKeywords = new String(keywordBytes, DEFAULT_ENCODING);
    if (rawKeywords.length() > 0 && rawKeywords.charAt(rawKeywords.length() - 1) == delimiter.charAt(0)) {
        rawKeywords = rawKeywords.substring(0, rawKeywords.length() - 1);
    }
    rawKeywords = scrubKeywords(rawKeywords, delimiter);

    final StringTokenizer s = new StringTokenizer(rawKeywords, delimiter);
    final HashMap<String, String> header = new HashMap<>();
    Boolean ok = true;
    while (s.hasMoreTokens() && ok) {
        final String key = s.nextToken().trim();
        if (key.trim().isEmpty()) {
            ok = false;
        } else {
            try {
                final String value = s.nextToken().trim();
                header.put(unScrubKeywords(key, delimiter), unScrubKeywords(value, delimiter));
            } catch (NoSuchElementException e) {
                String message = "Keyword value for: " + key
                        + " does not exist.  Header appears to be malformed, proceed with some caution.";
                LogFactory.createLogger(this.getClass().getName()).log(Level.FINE, message, e);
            }
        }
    }

    HashFunction md = Hashing.sha256();
    HashCode code = md.hashBytes(keywordBytes);
    header.put("SHA-256", code.toString());
    return header;
}

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From source file:academiavisual.FormPrincipal.java

private void jButtonLoginActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButtonLoginActionPerformed
    try {/*from   ww w .  j  a  v a 2 s.  co  m*/
        permissao = new Permissao();
        if (jComboBoxLogin.getSelectedIndex() == 0) {
            EntityManagerFactory emf = Persistence.createEntityManagerFactory("AcademiaVisualPU");
            AlunoJpaController alunoJpaController = new AlunoJpaController(emf);
            Aluno alunoLogin = (Aluno) alunoJpaController.findLogin(jTextFieldLogin.getText());
            if (alunoLogin != null) {
                String senha1 = alunoLogin.getSenha();
                String senha2 = Hashing.sha256().hashString(jPasswordFieldLogin.getText(), Charsets.UTF_8)
                        .toString();
                if (senha1.equals(senha2)) {
                    permissao.setPermissaoUsuario(Permissao.P_ALUNO);
                    ALUNOID = alunoLogin.getId();
                    dispose();
                    JOptionPane.showMessageDialog(null, "Login realizado com sucesso !");
                    new TelaInicial(permissao).setVisible(true);
                } else {
                    JOptionPane.showMessageDialog(null, "Senha incorreta!");
                    jPasswordFieldLogin.setText("");
                    jPasswordFieldLogin.grabFocus();
                    contadorAcessoAluno++;
                    if (contadorAcessoAluno == 3) {
                        JOptionPane.showMessageDialog(null, "Quantidade de tentativas excedidas (3)!");
                        System.exit(0);
                    }
                }
            } else {
                JOptionPane.showMessageDialog(null, "Login incorreto !");
                jTextFieldLogin.setText("");
                jPasswordFieldLogin.setText("");
                jTextFieldLogin.grabFocus();
            }
        } else {
            if (jComboBoxLogin.getSelectedIndex() == 1) {
                EntityManagerFactory emf = Persistence.createEntityManagerFactory("AcademiaVisualPU");
                TreinadorJpaController treinadorJpaController = new TreinadorJpaController(emf);
                Treinador treinadorLogin = (Treinador) treinadorJpaController
                        .findLogin(jTextFieldLogin.getText());
                if (treinadorLogin != null) {
                    String senha1 = treinadorLogin.getSenha();
                    String senha2 = Hashing.sha256().hashString(jPasswordFieldLogin.getText(), Charsets.UTF_8)
                            .toString();
                    if (senha1.equals(senha2)) {
                        if (treinadorLogin.getAdministrador() == 1) {
                            permissao.setPermissaoUsuario(Permissao.P_ADMINISTRADOR);
                        } else {
                            permissao.setPermissaoUsuario(Permissao.P_TREINADOR);
                        }
                        TREINADORID = treinadorLogin.getId();
                        dispose();
                        JOptionPane.showMessageDialog(null, "Login realizado com sucesso !");
                        new TelaInicial(permissao).setVisible(true);
                    } else {
                        JOptionPane.showMessageDialog(null, "Senha incorreta!");
                        jPasswordFieldLogin.setText("");
                        jPasswordFieldLogin.grabFocus();
                        contadorAcessoTreinador++;
                        if (contadorAcessoTreinador == 3) {
                            JOptionPane.showMessageDialog(null, "Quantidade de tentativas excedidas (3)!");
                            System.exit(0);
                        }
                    }
                } else {
                    JOptionPane.showMessageDialog(null, "Login incorreto !");
                    jTextFieldLogin.setText("");
                    jPasswordFieldLogin.setText("");
                    jTextFieldLogin.grabFocus();
                }
            }
        }
    } catch (Exception e) {
        JOptionPane.showMessageDialog(rootPane, e);
    }
}

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From source file:com.hubrick.vertx.s3.signature.AWS4SignatureBuilder.java

private String makeCanonicalRequestContentHash() {
    if (!canonicalHeaders.containsKey("host")) {
        throw new AWS4SignatureException("Headers must include the host header");
    }//from ww w  .j  a  va2  s.c o m

    final String signatureBase = makeCanonicalRequest();

    return Hashing.sha256().hashString(signatureBase, Charsets.UTF_8).toString();
}

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