Example usage for java.math BigInteger toString

Introduction

In this page you can find the example usage for java.math BigInteger toString.

Prototype

public String toString(int radix) 

Source Link

Document

Returns the String representation of this BigInteger in the given radix.

Usage

From source file:com.dgwave.osrs.OsrsClient.java

private String bytesToHex(byte[] bytes) {
    String s = new String();
    BigInteger bi = new BigInteger(1, bytes);
    // Format to hexadecimal
    s = bi.toString(16); // 120ff0
    if (s.length() % 2 != 0) {
        // Pad with 0
        s = "0" + s;
    }//from   ww w . java 2  s .com
    return s;
}

---

From source file:piramide.multimodal.applicationserver.rest.DirectoriesManager.java

private String encode(String arg) {
    try {/* ww w. j av  a 2  s  .  c  o  m*/
        final MessageDigest digest = MessageDigest.getInstance("MD5");
        digest.update(arg.getBytes());
        byte[] md5sum = digest.digest();
        final BigInteger bigInt = new BigInteger(1, md5sum);
        final String output = bigInt.toString(16);
        return output;
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException("MD5 required: " + e.getMessage(), e);
    }
}

---

From source file:de.mpg.escidoc.pubman.sword.PubManDepositServlet.java

public boolean checkChecksum(InputStream fis, String md5) throws NoSuchAlgorithmException, IOException {
    boolean check = false;
    byte[] buffer = new byte[1024];
    String checkCalc = "";
    MessageDigest md = MessageDigest.getInstance("MD5");
    int numRead;//from   w  w  w. j a  v  a  2 s  .  com

    do {
        numRead = fis.read(buffer);
        if (numRead > 0) {
            md.update(buffer, 0, numRead);
        }
    } while (numRead != -1);
    fis.close();

    byte[] digest = md.digest();
    BigInteger bigInt = new BigInteger(1, digest);
    checkCalc = bigInt.toString(16);
    while (checkCalc.length() < 32) {
        checkCalc = "0" + checkCalc;
    }

    if (md5.equals(checkCalc)) {
        check = true;
    }

    return check;
}

---

From source file:org.ethereum.validator.ProofOfWorkRule.java

@Override
public boolean isValid(Block block) {

    BlockHeader header = block.getHeader();
    co.rsk.bitcoinj.core.NetworkParameters bitcoinNetworkParameters = SystemProperties.CONFIG
            .getBlockchainConfig().getCommonConstants().getBridgeConstants().getBtcParams();
    byte[] bitcoinMergedMiningCoinbaseTransactionCompressed = header
            .getBitcoinMergedMiningCoinbaseTransaction();
    co.rsk.bitcoinj.core.BtcBlock bitcoinMergedMiningBlock = bitcoinNetworkParameters.getDefaultSerializer()
            .makeBlock(header.getBitcoinMergedMiningHeader());
    co.rsk.bitcoinj.core.PartialMerkleTree bitcoinMergedMiningMerkleBranch = new co.rsk.bitcoinj.core.PartialMerkleTree(
            bitcoinNetworkParameters, header.getBitcoinMergedMiningMerkleProof(), 0);

    BigInteger target = DifficultyUtils.difficultyToTarget(header.getDifficultyBI());

    BigInteger bitcoinMergedMiningBlockHashBI = bitcoinMergedMiningBlock.getHash().toBigInteger();

    if (bitcoinMergedMiningBlockHashBI.compareTo(target) > 0) {
        logger.error("Hash {} is higher than target {}", bitcoinMergedMiningBlockHashBI.toString(16),
                target.toString(16));//w w w.ja  v  a2s. c  o m
        return false;
    }

    byte[] bitcoinMergedMiningCoinbaseTransactionMidstate = new byte[RskMiningConstants.MIDSTATE_SIZE];
    System.arraycopy(bitcoinMergedMiningCoinbaseTransactionCompressed, 0,
            bitcoinMergedMiningCoinbaseTransactionMidstate, 8, RskMiningConstants.MIDSTATE_SIZE_TRIMMED);

    byte[] bitcoinMergedMiningCoinbaseTransactionTail = new byte[bitcoinMergedMiningCoinbaseTransactionCompressed.length
            - RskMiningConstants.MIDSTATE_SIZE_TRIMMED];
    System.arraycopy(bitcoinMergedMiningCoinbaseTransactionCompressed, RskMiningConstants.MIDSTATE_SIZE_TRIMMED,
            bitcoinMergedMiningCoinbaseTransactionTail, 0, bitcoinMergedMiningCoinbaseTransactionTail.length);

    byte[] expectedCoinbaseMessageBytes = org.spongycastle.util.Arrays.concatenate(RskMiningConstants.RSK_TAG,
            header.getHashForMergedMining());

    List<Byte> bitcoinMergedMiningCoinbaseTransactionTailAsList = java.util.Arrays
            .asList(ArrayUtils.toObject(bitcoinMergedMiningCoinbaseTransactionTail));
    List<Byte> expectedCoinbaseMessageBytesAsList = java.util.Arrays
            .asList(ArrayUtils.toObject(expectedCoinbaseMessageBytes));

    int rskTagPosition = Collections.lastIndexOfSubList(bitcoinMergedMiningCoinbaseTransactionTailAsList,
            expectedCoinbaseMessageBytesAsList);
    if (rskTagPosition == -1) {
        logger.error(
                "bitcoin coinbase transaction tail message does not contain expected RSKBLOCK:RskBlockHeaderHash. Expected: {} . Actual: {} .",
                Arrays.toString(expectedCoinbaseMessageBytes),
                Arrays.toString(bitcoinMergedMiningCoinbaseTransactionTail));
        return false;
    }

    /*
    * We check that the there is no other block before the rsk tag, to avoid a possible malleability attack:
    * If we have a mid state with 10 blocks, and the rsk tag, we can also have
    * another mid state with 9 blocks, 64bytes + the rsk tag, giving us two blocks with different hashes but the same spv proof.
    * */
    if (rskTagPosition >= 64) {
        logger.error("bitcoin coinbase transaction tag position is bigger than expected 64. Actual: {}.",
                Integer.toString(rskTagPosition));
        return false;
    }

    List<Byte> rskTagAsList = java.util.Arrays.asList(ArrayUtils.toObject(RskMiningConstants.RSK_TAG));
    if (rskTagPosition != Collections.lastIndexOfSubList(bitcoinMergedMiningCoinbaseTransactionTailAsList,
            rskTagAsList)) {
        logger.error("The valid RSK tag is not the last RSK tag. Tail: {}.",
                Arrays.toString(bitcoinMergedMiningCoinbaseTransactionTail));
        return false;
    }

    int remainingByteCount = bitcoinMergedMiningCoinbaseTransactionTail.length - rskTagPosition
            - RskMiningConstants.RSK_TAG.length - RskMiningConstants.BLOCK_HEADER_HASH_SIZE;
    if (remainingByteCount > RskMiningConstants.MAX_BYTES_AFTER_MERGED_MINING_HASH) {
        logger.error("More than 128 bytes after ROOOTSTOCK tag");
        return false;
    }

    SHA256Digest digest = new SHA256Digest(bitcoinMergedMiningCoinbaseTransactionMidstate);
    digest.update(bitcoinMergedMiningCoinbaseTransactionTail, 0,
            bitcoinMergedMiningCoinbaseTransactionTail.length);
    byte[] bitcoinMergedMiningCoinbaseTransactionOneRoundOfHash = new byte[32];
    digest.doFinal(bitcoinMergedMiningCoinbaseTransactionOneRoundOfHash, 0);
    co.rsk.bitcoinj.core.Sha256Hash bitcoinMergedMiningCoinbaseTransactionHash = co.rsk.bitcoinj.core.Sha256Hash
            .wrapReversed(
                    co.rsk.bitcoinj.core.Sha256Hash.hash(bitcoinMergedMiningCoinbaseTransactionOneRoundOfHash));

    List<co.rsk.bitcoinj.core.Sha256Hash> txHashesInTheMerkleBranch = new ArrayList<>();
    co.rsk.bitcoinj.core.Sha256Hash merkleRoot = bitcoinMergedMiningMerkleBranch
            .getTxnHashAndMerkleRoot(txHashesInTheMerkleBranch);
    if (!merkleRoot.equals(bitcoinMergedMiningBlock.getMerkleRoot())) {
        logger.error("bitcoin merkle root of bitcoin block does not match the merkle root of merkle branch");
        return false;
    }
    if (!txHashesInTheMerkleBranch.contains(bitcoinMergedMiningCoinbaseTransactionHash)) {
        logger.error("bitcoin coinbase transaction {} not included in merkle branch",
                bitcoinMergedMiningCoinbaseTransactionHash);
        return false;
    }

    return true;
}

---

From source file:edu.mayo.qdm.webapp.rest.store.Md5HashFileSystemResolver.java

/**
 * Gets the md5 hash./*from   w w  w .j  a v  a 2  s  .  c  o m*/
 *
 * @param token the token
 * @return the md5 hash
 */
protected String getMd5Hash(String token) {

    MessageDigest m;
    try {
        m = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        throw new IllegalStateException(e);
    }
    m.update(token.getBytes());

    byte[] digest = m.digest();
    BigInteger bigInt = new BigInteger(1, digest);
    String hashtext = bigInt.toString(16);

    // Now we need to zero pad it if you actually want the full 32 chars.
    while (hashtext.length() < 32) {
        hashtext = "0" + hashtext;
    }

    return hashtext;
}

---

From source file:cross.datastructures.pipeline.ResultAwareCommandPipeline.java

/**
 * Calculates a byte-level digest of the given files.
 *
 * @param files the files to calculate the digest for.
 * @return the hexadecimal, zero-padded digest, or null if any exceptions
 *         occurred/*from  w  w  w  . ja  v  a 2 s. c om*/
 */
public String digest(Collection<File> files) {
    try {
        MessageDigest digest = MessageDigest.getInstance("SHA-1");
        for (File file : files) {
            try (InputStream is = Files.newInputStream(file.toPath(), StandardOpenOption.READ)) {
                byte[] buffer = new byte[8192];
                int read = 0;
                while ((read = is.read(buffer)) > 0) {
                    digest.update(buffer, 0, read);
                }
            } catch (IOException ioex) {
                Logger.getLogger(ResultAwareCommandPipeline.class.getName()).log(Level.SEVERE, null, ioex);
                return null;
            }
        }
        byte[] sha1 = digest.digest();
        BigInteger bigInt = new BigInteger(1, sha1);
        return StringUtils.leftPad(bigInt.toString(16), 40, "0");
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(ResultAwareCommandPipeline.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

---

From source file:com.artivisi.iso8583.Message.java

public void calculateBitmap() {
    LOGGER.debug("Number of active Data Element [{}]", dataElementContent.size());
    BigInteger bitmap = BigInteger.ZERO.setBit(128);
    for (Integer de : dataElementContent.keySet()) {
        LOGGER.debug("Set active flag for Data Element [{}]", de);
        if (de > 64) {
            bitmap = bitmap.setBit(128 - 1);
        }/*  w  w  w  .j  a  va2 s  .  c o  m*/
        bitmap = bitmap.setBit(128 - de);
    }
    LOGGER.debug("Final bitmap bin : [{}]", bitmap.toString(2).substring(1));
    LOGGER.debug("Final bitmap hex : [{}]", bitmap.toString(16).substring(1));
    setPrimaryBitmapStream(StringUtils.rightPad(bitmap.toString(16).substring(1, 16), 16, "0"));
    if (bitmap.testBit(128 - 1)) {
        setSecondaryBitmapStream(StringUtils.rightPad(bitmap.toString(16).substring(17), 16, "0"));
    }
}

---

From source file:org.openhab.voice.googletts.internal.GoogleCloudAPI.java

/**
 * Gets a unique filename for a give text, by creating a MD5 hash of it. It
 * will be preceded by the locale./*from w ww  .  j a va 2 s.c  o m*/
 * <p>
 * Sample: "en-US_00a2653ac5f77063bc4ea2fee87318d3"
 */
private String getUniqueFilenameForText(String text, String voiceName) {
    try {
        byte[] bytesOfMessage = (config.toConfigString() + text).getBytes(UTF_8);
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] md5Hash = md.digest(bytesOfMessage);
        BigInteger bigInt = new BigInteger(1, md5Hash);
        StringBuilder hashText = new StringBuilder(bigInt.toString(16));
        // Now we need to zero pad it if you actually want the full 32 chars.
        while (hashText.length() < 32) {
            hashText.insert(0, "0");
        }
        return voiceName + "_" + hashText;
    } catch (UnsupportedEncodingException | NoSuchAlgorithmException ex) {
        // should not happen
        logger.error("Could not create MD5 hash for '{}'", text, ex);
        return null;
    }
}

---

From source file:org.ejbca.core.protocol.ws.client.EditUserCommand.java

/**
 * Runs the command/*from  ww w  . j a  va  2  s . c o m*/
 *
 * @throws IllegalAdminCommandException Error in command args
 * @throws ErrorAdminCommandException Error running command
 */
public void execute() throws IllegalAdminCommandException, ErrorAdminCommandException {

    final UserDataVOWS userdata = new UserDataVOWS();
    final String[] myArgs = ParseUserData.getDataFromArgs(this.args, userdata, getPrintStream());
    if (myArgs.length < NR_OF_MANDATORY_ARGS || myArgs.length > MAX_NR_OF_ARGS) {
        usage();
        System.exit(-1); // NOPMD, this is not a JEE app
    }
    try {
        userdata.setUsername(myArgs[ARG_USERNAME]);
        String pwd = myArgs[ARG_PASSWORD];
        if (StringUtils.equalsIgnoreCase("null", pwd)) {
            pwd = null;
        }
        userdata.setPassword(pwd);
        userdata.setClearPwd(myArgs[ARG_CLEARPWD].equalsIgnoreCase("true"));
        userdata.setSubjectDN(myArgs[ARG_SUBJECTDN]);
        if (!myArgs[ARG_SUBJECTALTNAME].equalsIgnoreCase("NULL")) {
            userdata.setSubjectAltName(myArgs[ARG_SUBJECTALTNAME]);
        }
        if (!myArgs[ARG_EMAIL].equalsIgnoreCase("NULL")) {
            userdata.setEmail(myArgs[ARG_EMAIL]);
        }
        userdata.setCaName(myArgs[ARG_CA]);
        userdata.setTokenType(myArgs[ARG_TOKEN]);
        userdata.setStatus(getStatus(myArgs[ARG_STATUS]));
        userdata.setEndEntityProfileName(myArgs[ARG_ENDENTITYPROFILE]);
        userdata.setCertificateProfileName(myArgs[ARG_CERTIFICATEPROFILE]);

        EndEntityType type = new EndEntityType(
                EndEntityTypes.getTypesFromHexCode(Integer.parseInt(myArgs[ARG_TYPE])));

        if (type.contains(EndEntityTypes.SENDNOTIFICATION)) {
            userdata.setSendNotification(true);
        }
        if (type.contains(EndEntityTypes.KEYRECOVERABLE)) {
            userdata.setKeyRecoverable(true);
        }

        if (myArgs.length > ARG_ISSUERALIAS) {
            if (!myArgs[ARG_ISSUERALIAS].equalsIgnoreCase("NULL")) {
                userdata.setHardTokenIssuerName(myArgs[ARG_ISSUERALIAS]);
            }
        }
        if (myArgs.length > ARG_STARTTIME) {
            if (!myArgs[ARG_STARTTIME].equalsIgnoreCase("NULL")) {
                userdata.setStartTime(myArgs[ARG_STARTTIME]);
            }
        }
        if (myArgs.length > ARG_ENDTIME) {
            if (!myArgs[ARG_ENDTIME].equalsIgnoreCase("NULL")) {
                userdata.setEndTime(myArgs[ARG_ENDTIME]);
            }
        }

        getPrintStream().println("Trying to add user:");
        getPrintStream().println("Username: " + userdata.getUsername());
        getPrintStream().println("Subject DN: " + userdata.getSubjectDN());
        getPrintStream().println("Subject Altname: " + userdata.getSubjectAltName());
        getPrintStream().println("Email: " + userdata.getEmail());
        getPrintStream().println("CA Name: " + userdata.getCaName());
        getPrintStream().println("Type: " + type.getHexValue());
        getPrintStream().println("Token: " + userdata.getTokenType());
        getPrintStream().println("Status: " + userdata.getStatus());
        getPrintStream().println("End entity profile: " + userdata.getEndEntityProfileName());
        getPrintStream().println("Certificate profile: " + userdata.getCertificateProfileName());

        if (userdata.getHardTokenIssuerName() == null) {
            getPrintStream().println("Hard Token Issuer Alias: NONE");
        } else {
            getPrintStream().println("Hard Token Issuer Alias: " + userdata.getHardTokenIssuerName());
        }
        if (userdata.getStartTime() == null) {
            getPrintStream().println("Start time: NONE");
        } else {
            getPrintStream().println("Start time: " + userdata.getStartTime());
        }
        if (userdata.getEndTime() == null) {
            getPrintStream().println("End time: NONE");
        } else {
            getPrintStream().println("End time: " + userdata.getEndTime());
        }
        {
            final List<ExtendedInformationWS> eil = userdata.getExtendedInformation();
            if (eil != null) {
                getPrintStream().println("Extended information:");
                for (ExtendedInformationWS ei : eil) {
                    getPrintStream().println("   '" + ei.getName() + "' = '" + ei.getValue() + "'");
                }
            }
        }
        {
            final BigInteger bi = userdata.getCertificateSerialNumber();
            if (bi != null) {
                getPrintStream().println(ParseUserData.certificateSerialNumber + "=0x" + bi.toString(16));
            }
        }

        try {
            getEjbcaRAWS().editUser(userdata);

            getPrintStream().println("User '" + userdata.getUsername() + "' has been added/edited.");
            getPrintStream().println();
        } catch (AuthorizationDeniedException_Exception e) {
            getPrintStream().println("Error : " + e.getMessage());
        } catch (UserDoesntFullfillEndEntityProfile_Exception e) {
            getPrintStream()
                    .println("Error : Given userdata doesn't fullfill end entity profile. : " + e.getMessage());
        }

    } catch (Exception e) {
        throw new ErrorAdminCommandException(e);
    }
}

---

From source file:org.broadleafcommerce.cms.file.service.StaticAssetStorageServiceImpl.java

/**
 * Builds a file system path for the passed in static asset and paramaterMap.
 * /*from   w  w w  . j a  v a 2  s.c o  m*/
 * @param staticAsset
 * @param parameterMap
 * @param useSharedFile
 * @return
 */
protected String constructCacheFileName(StaticAsset staticAsset, Map<String, String> parameterMap) {
    String fileName = staticAsset.getFullUrl();

    StringBuilder sb = new StringBuilder(200);
    sb.append(fileName.substring(0, fileName.lastIndexOf('.')));
    sb.append("---");

    StringBuilder sb2 = new StringBuilder(200);
    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
    if (staticAsset.getAuditable() != null) {
        sb2.append(format.format(staticAsset.getAuditable().getDateUpdated() == null
                ? staticAsset.getAuditable().getDateCreated()
                : staticAsset.getAuditable().getDateUpdated()));
    }

    if (parameterMap != null) {
        for (Map.Entry<String, String> entry : parameterMap.entrySet()) {
            sb2.append('-');
            sb2.append(entry.getKey());
            sb2.append('-');
            sb2.append(entry.getValue());
        }
    }

    String digest;
    try {
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] messageDigest = md.digest(sb2.toString().getBytes());
        BigInteger number = new BigInteger(1, messageDigest);
        digest = number.toString(16);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }

    sb.append(pad(digest, 32, '0'));
    sb.append(fileName.substring(fileName.lastIndexOf('.')));

    return sb.toString();
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• »