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.servicecomb.demo.edge.service.encrypt.filter.EdgeSignatureRequestFilter.java

@Override
public Response afterReceiveRequest(Invocation invocation, HttpServletRequestEx requestEx) {
    EncryptContext encryptContext = (EncryptContext) invocation.getHandlerContext()
            .get(EdgeConst.ENCRYPT_CONTEXT);
    if (encryptContext == null) {
        return null;
    }/*from w  ww.  j  a  va2 s  .co  m*/
    Hcr hcr = encryptContext.getHcr();

    // signature for query and form
    List<String> names = Collections.list(requestEx.getParameterNames());
    names.sort(Comparator.naturalOrder());

    Hasher hasher = Hashing.sha256().newHasher();
    hasher.putString(hcr.getSignatureKey(), StandardCharsets.UTF_8);
    for (String name : names) {
        hasher.putString(name, StandardCharsets.UTF_8);
        hasher.putString(requestEx.getParameter(name), StandardCharsets.UTF_8);
    }
    LOGGER.info("afterReceiveRequest signature: {}", hasher.hash().toString());

    return null;
}

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From source file:lbaas.util.HashAlgorithm.java

public int hash(Object key) {
    HashCode hashCode;//from   w  w w  . j  a v a2s . co m
    HashFunction hashAlgorithm;
    switch (hashType) {
    case MD5:
        hashAlgorithm = Hashing.md5();
        break;
    case MURMUR3_32:
        hashAlgorithm = Hashing.murmur3_32();
        break;
    case SHA256:
        hashAlgorithm = Hashing.sha256();
        break;
    case SIP24:
        hashAlgorithm = Hashing.sipHash24();
        break;
    default:
        hashAlgorithm = Hashing.sipHash24();
        break;
    }
    if (key instanceof String) {
        hashCode = hashAlgorithm.newHasher().putString((String) key, Charsets.UTF_8).hash();
    } else if (key instanceof Long) {
        hashCode = hashAlgorithm.newHasher().putLong((Long) key).hash();
    } else {
        hashCode = hashAlgorithm.newHasher().hash();
    }
    return hashCode.asInt();
}

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From source file:org.sfs.encryption.CipherWriteStreamValidation.java

public CipherWriteStreamValidation(byte[] secretBytes, byte[] salt) {
    this.salt = salt.clone();
    secretBytes = secretBytes.clone();//w  ww. ja v a  2s. com
    if (secretBytes.length != KEY_SIZE_BYTES) {
        secretBytes = Hashing.sha256().hashBytes(secretBytes).asBytes();
    }
    try {
        KeyParameter key = new KeyParameter(secretBytes);
        AEADParameters params = new AEADParameters(key, MAC_SIZE_BITS, this.salt);

        this.encryptor = new GCMBlockCipher(new AESFastEngine());
        this.encryptor.init(true, params);

        this.decryptor = new GCMBlockCipher(new AESFastEngine());
        this.decryptor.init(false, params);

    } catch (Exception e) {
        throw new RuntimeException("could not create cipher for AES256", e);
    } finally {
        Arrays.fill(secretBytes, (byte) 0);
    }
}

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From source file:org.apache.james.backend.rabbitmq.DockerClusterRabbitMQExtension.java

public void beforeAll() {
    String cookie = Hashing.sha256().hashString("secret cookie here", StandardCharsets.UTF_8).toString();

    network = Network.NetworkImpl.builder().enableIpv6(false).createNetworkCmdModifiers(ImmutableList.of())
            .build();// w w w.j  av  a  2s .  c  o m

    String clusterIdentity = UUID.randomUUID().toString();
    rabbitMQ1 = DockerRabbitMQ.withCookieAndHostName(RABBIT_1, clusterIdentity, cookie, network);
    rabbitMQ2 = DockerRabbitMQ.withCookieAndHostName(RABBIT_2, clusterIdentity, cookie, network);
    rabbitMQ3 = DockerRabbitMQ.withCookieAndHostName(RABBIT_3, clusterIdentity, cookie, network);

    startDockerRabbits();
}

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From source file:org.apache.james.user.jpa.model.JPAUser.java

@SuppressWarnings("deprecation")
private static HashFunction chooseHashing(String algorithm) {
    switch (algorithm) {
    case "MD5":
        return Hashing.md5();
    case "SHA-256":
        return Hashing.sha256();
    case "SHA-512":
        return Hashing.sha512();
    default:/*from   ww  w .  j a  v a  2  s .c  o  m*/
        return Hashing.sha1();
    }
}

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From source file:com.facebook.buck.parser.cache.impl.Fingerprinter.java

/**
 * Gets the weak fingerprint for this configuration.
 *
 * @param buildFile the path to the BUCK file build spec of interest.
 * @param config the {@link Config} object to calculate the weak fingerprint for
 * @return a weak fingerprint - {@link com.google.common.hash.HashCode} that represent a unique
 *     hash value.//from   w w  w  .  j  a v a 2 s  .  c  om
 */
public static HashCode getWeakFingerprint(Path buildFile, Config config) {
    Hasher hasher = Hashing.sha256().newHasher();
    return hasher.putString(buildFile.toString(), StandardCharsets.UTF_8)
            .putBytes(config.getOrderIndependentHashCode().asBytes())
            .putString(Platform.detect().name(), StandardCharsets.UTF_8)
            .putString(Architecture.detect().name(), StandardCharsets.UTF_8).hash();
}

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From source file:org.apache.servicecomb.it.edge.encrypt.filter.EdgeSignatureResponseFilter.java

@Override
public void beforeSendResponse(Invocation invocation, HttpServletResponseEx responseEx) {
    if (invocation == null) {
        return;/*from   w  ww . jav  a  2 s . c  o m*/
    }

    EncryptContext encryptContext = (EncryptContext) invocation.getHandlerContext()
            .get(EdgeConst.ENCRYPT_CONTEXT);
    if (encryptContext == null) {
        return;
    }
    Hcr hcr = encryptContext.getHcr();

    // bad practice: it's better to set signature in response header
    Buffer bodyBuffer = responseEx.getBodyBuffer();
    String body = bodyBuffer.toString();
    if (body.endsWith("}")) {
        Hasher hasher = Hashing.sha256().newHasher();
        hasher.putString(hcr.getSignatureKey(), StandardCharsets.UTF_8);
        hasher.putString(body, StandardCharsets.UTF_8);
        String signature = hasher.hash().toString();
        LOGGER.info("beforeSendResponse signature: {}", signature);

        body = body.substring(0, body.length() - 1) + ",\"signature\":\"" + signature + "\"}";
        responseEx.setBodyBuffer(Buffer.buffer(body));
    }
}

---

From source file:org.eclipse.kapua.service.datastore.internal.elasticsearch.EsDocumentBuilder.java

private String getHashCode(String aString) {
    byte[] hashCode = Hashing.sha256().hashString(aString, StandardCharsets.UTF_8).asBytes();

    return Base64.encodeBytes(hashCode);
    // return aString;
}

---

From source file:com.google.devtools.build.lib.bazel.repository.HttpDownloader.java

/**
 * Attempt to download a file from the repository's URL. Returns the path to the file downloaded.
 *//*from   w  w w  . ja  va2  s  . c o  m*/
public Path download() throws IOException {
    String filename = new PathFragment(url.getPath()).getBaseName();
    if (filename.isEmpty()) {
        filename = "temp";
    }
    Path destination = outputDirectory.getRelative(filename);

    try (OutputStream outputStream = destination.getOutputStream()) {
        ReadableByteChannel rbc = getChannel(url);
        ByteBuffer byteBuffer = ByteBuffer.allocate(BUFFER_SIZE);
        while (rbc.read(byteBuffer) > 0) {
            byteBuffer.flip();
            while (byteBuffer.hasRemaining()) {
                outputStream.write(byteBuffer.get());
            }
            byteBuffer.flip();
        }
    } catch (IOException e) {
        throw new IOException("Error downloading " + url + " to " + destination + ": " + e.getMessage());
    }

    String downloadedSha256;
    try {
        downloadedSha256 = getHash(Hashing.sha256().newHasher(), destination);
    } catch (IOException e) {
        throw new IOException("Could not hash file " + destination + ": " + e.getMessage()
                + ", expected SHA-256 of " + sha256 + ")");
    }
    if (!downloadedSha256.equals(sha256)) {
        throw new IOException("Downloaded file at " + destination + " has SHA-256 of " + downloadedSha256
                + ", does not match expected SHA-256 (" + sha256 + ")");
    }
    return destination;
}

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From source file:uk.ac.nott.mrl.arch.Item.java

static void updateCurrent() {
    final String json = gson.toJson(current);
    final String tag = Hashing.sha256().hashString(json, charset).toString();
    if (!tag.equals(currentTag)) {
        currentTag = tag;/* www  . ja v  a2s.  c o m*/
        currentJson = json;
        logger.info(currentJson);
    }
}

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