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:ph.samson.maven.enforcer.rule.checksum.FileChecksum.java

@Override
public void execute(EnforcerRuleHelper erh) throws EnforcerRuleException {
    if (file == null || !file.canRead()) {
        throw new EnforcerRuleException("Missing file: " + file);
    }/*from www. ja v  a2s  .  c om*/

    HashFunction hashFn;
    switch (type) {
    case "crc32":
        hashFn = Hashing.crc32();
        break;
    case "crc32c":
        hashFn = Hashing.crc32c();
        break;
    case "md5":
        hashFn = Hashing.md5();
        break;
    case "sha1":
        hashFn = Hashing.sha1();
        break;
    case "sha256":
        hashFn = Hashing.sha256();
        break;
    case "sha512":
        hashFn = Hashing.sha512();
        break;
    default:
        throw new EnforcerRuleException("Unsupported hash type: " + type);
    }

    String hash;
    try {
        hash = hashFn.hashBytes(Files.readAllBytes(file.toPath())).toString();
    } catch (IOException ex) {
        throw new EnforcerRuleException("Failed reading " + file, ex);
    }

    if (!hash.equalsIgnoreCase(checksum)) {
        throw new EnforcerRuleException(
                type + " hash of " + file + " was " + hash + " but expected " + checksum);
    }
}

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From source file:dpp.dbClasses.User.java

/**
 * return the generated encrypted password
 * @param password/*  w  ww  . j a v  a  2  s .  com*/
 * @return String
 */
private String encryptPassword(String password) {
    return Hashing.sha256().hashString(password, Charsets.UTF_8).toString();
}

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From source file:io.atomix.primitive.partition.PartitionGroup.java

/**
 * Returns the partition for the given key.
 *
 * @param key the key for which to return the partition
 * @return the partition for the given key
 *//* w w  w  .jav a2 s .  c  om*/
default Partition getPartition(String key) {
    int hashCode = Hashing.sha256().hashString(key, StandardCharsets.UTF_8).asInt();
    return getPartition(getPartitionIds().get(Math.abs(hashCode) % getPartitionIds().size()));
}

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From source file:org.onosproject.store.primitives.impl.FederatedDistributedPrimitiveCreator.java

@Override
public <K, V> AsyncConsistentMap<K, V> newAsyncConsistentMap(String name, Serializer serializer) {
    checkNotNull(name);/*from w  ww. java 2  s  .com*/
    checkNotNull(serializer);
    Map<PartitionId, AsyncConsistentMap<K, V>> maps = Maps.transformValues(members,
            partition -> partition.newAsyncConsistentMap(name, serializer));
    Hasher<K> hasher = key -> {
        int hashCode = Hashing.sha256().hashBytes(serializer.encode(key)).asInt();
        return sortedMemberPartitionIds.get(Math.abs(hashCode) % members.size());
    };
    return new PartitionedAsyncConsistentMap<>(name, maps, hasher);
}

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From source file:org.jclouds.glacier.util.TreeHash.java

/**
 * Builds the Hash and the TreeHash values of the payload.
 *
 * @return The calculated TreeHash./*  w  w  w  .j av  a 2s . c o  m*/
 * @see <a href="http://docs.aws.amazon.com/amazonglacier/latest/dev/checksum-calculations.html" />
 */
public static TreeHash buildTreeHashFromPayload(Payload payload) throws IOException {
    InputStream is = null;
    try {
        is = checkNotNull(payload, "payload").openStream();
        Builder<HashCode> list = ImmutableList.builder();
        HashingInputStream linearHis = new HashingInputStream(Hashing.sha256(), is);
        while (true) {
            HashingInputStream chunkedHis = new HashingInputStream(Hashing.sha256(),
                    ByteStreams.limit(linearHis, CHUNK_SIZE));
            long count = ByteStreams.copy(chunkedHis, ByteStreams.nullOutputStream());
            if (count == 0) {
                break;
            }
            list.add(chunkedHis.hash());
        }
        //The result list contains exactly one element now.
        return new TreeHash(hashList(list.build()), linearHis.hash());
    } finally {
        closeQuietly(is);
    }
}

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From source file:com.ea.promed.beans.ClientBean.java

public String createClient() throws MessagingException, UnsupportedEncodingException {

    String hash = Hashing.sha256().hashString(client.getUser().getPassword(), Charsets.UTF_8).toString();

    client.getUser().setVerification(hash);
    client.getUser().setPassword(hash);/*from  w  w  w .j ava2 s . c  o  m*/
    clientFacade.create(client);

    emailBean.setToemail(client.getUser().getEmail());
    emailBean.setSubject("Email Verification from Pro Medical Services");
    emailBean.setMessagetext(client.getFirstName(), hash);

    emailBean.sendEMail();

    sessionMap.put("message", "Registration successfull. Please check your email to verify");

    return "dashboard/index?faces-redirect=true";
}

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From source file:org.dcache.util.CachingCertificateValidator.java

@Override
public ValidationResult validate(final X509Certificate[] certChain) {
    checkNotNull(certChain, "Cannot validate a null cert chain.");
    checkArgument(certChain.length > 0, "Cannot validate a cert chain of length 0.");

    int pos = 0;/* ww  w .  ja  v a  2  s. com*/
    try {
        /* Check that the chain is still valid; would be nice if we instead could limit the lifetime of the cache
         * entry, but Guava doesn't allow us to do that.
         */
        Hasher hasher = Hashing.sha256().newHasher();
        for (X509Certificate cert : certChain) {
            cert.checkValidity();
            hasher.putBytes(cert.getEncoded());
            pos++;
        }

        String certFingerprint = hasher.hash().toString();

        return cache.get(certFingerprint, () -> validator.validate(certChain));
    } catch (CertificateEncodingException e) {
        return new ValidationResult(false, singletonList(
                new ValidationError(certChain, pos, ValidationErrorCode.inputError, e.getMessage())));
    } catch (ExecutionException e) {
        return new ValidationResult(false, singletonList(
                new ValidationError(certChain, pos, ValidationErrorCode.inputError, e.getMessage())));
    } catch (CertificateExpiredException e) {
        return new ValidationResult(false, singletonList(
                new ValidationError(certChain, pos, ValidationErrorCode.certificateExpired, e.getMessage())));
    } catch (CertificateNotYetValidException e) {
        return new ValidationResult(false, singletonList(new ValidationError(certChain, pos,
                ValidationErrorCode.certificateNotYetValid, e.getMessage())));
    }
}

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From source file:org.graylog2.plugin.system.NodeId.java

/**
 * Generate an "anonymized" node ID for use with external services. Currently it just hashes the actual node ID
 * using SHA-256.//  w  ww .j  a va 2 s .c  o  m
 *
 * @return The anonymized ID derived from hashing the node ID.
 */
public String anonymize() {
    return Hashing.sha256().hashString(id, StandardCharsets.UTF_8).toString();
}

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From source file:org.apache.beam.runners.core.construction.PipelineResources.java

private static String calculateDirectoryContentHash(File directoryToStage) {
    Hasher hasher = Hashing.sha256().newHasher();
    try (OutputStream hashStream = Funnels.asOutputStream(hasher)) {
        ZipFiles.zipDirectory(directoryToStage, hashStream);
        return hasher.hash().toString();
    } catch (IOException e) {
        throw new RuntimeException(e);
    }//from   ww  w . j  a v a 2 s . c o m
}

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From source file:Expenses.Users.java

public void setPassword(String password) {
    String hash = Hashing.sha256().hashString(password, Charsets.UTF_8).toString();
    this.password = hash;
}

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