Example usage for java.security MessageDigest reset

Introduction

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

Prototype

public void reset() 

Source Link

Document

Resets the digest for further use.

Usage

From source file:com.photon.phresco.framework.impl.ConfigProcessor.java

private static SecretKey getAes128Key(String s) {
    try {//from   ww w  .  j a va2s  . com
        MessageDigest digest = MessageDigest.getInstance(SHA_ALGO);
        digest.reset();
        digest.update(s.getBytes(CI_UTF8));
        return new SecretKeySpec(digest.digest(), 0, 128 / 8, AES_ALGO);
    } catch (NoSuchAlgorithmException e) {
        throw new Error(e);
    } catch (UnsupportedEncodingException e) {
        throw new Error(e);
    }
}

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From source file:org.nuclos.common2.StringUtils.java

public static String encrypt(String x) {
    MessageDigest digest = null;
    try {//from w w w  .j a  va2s . c o m
        digest = MessageDigest.getInstance("SHA-1");
        digest.reset();
        digest.update(x.getBytes());
        return new String(digest.digest());
    } catch (NoSuchAlgorithmException e) {
        throw new CommonFatalException(e.getMessage(), e);
    }
}

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From source file:com.liveneo.plat.utils.StringUtil.java

/**
 * Encodes a string using algorithm specified in web.xml and return the
 * resulting encrypted password. If exception, the plain credentials string
 * is returned/*from w  ww . ja  v a  2  s  . c  o m*/
 * 
 * @param password
 *            Password or other credentials to use in authenticating this
 *            username
 * @param algorithm
 *            Algorithm used to do the digest
 * @return encypted password based on the algorithm.
 */
public static String encodePassword(String password, String algorithm) {

    if (password == null) {
        return null;
    }

    Log log = LogFactory.getLog(StringUtil.class);
    byte[] unencodedPassword = password.getBytes();

    MessageDigest md = null;

    try {
        // first create an instance, given the provider
        md = MessageDigest.getInstance(algorithm);
    } catch (Exception e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        if (log.isErrorEnabled()) {
            log.error(sw.toString());
        }
        return password;
    }

    md.reset();

    // call the update method one or more times
    // (useful when you don't know the size of your data, e.g. stream)
    md.update(unencodedPassword);

    // now calculate the hash
    byte[] encodedPassword = md.digest();

    StringBuffer buf = new StringBuffer();

    for (int i = 0; i < encodedPassword.length; i++) {
        if ((encodedPassword[i] & 0xff) < 0x10) {
            buf.append("0");
        }

        buf.append(Long.toString(encodedPassword[i] & 0xff, 16));
    }

    return buf.toString();
}

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From source file:org.inwiss.platform.common.util.StringUtil.java

/**
 * Encodes a string using algorithm specified in web.xml and return the
 * resulting encrypted password. If exception, the plain credentials
 * string is returned/*from   w w  w.ja va2 s . com*/
 *
 * @param password  Password or other credentials to use in authenticating
 *                  this username
 * @param algorithm Algorithm used to do the digest
 * @return encypted password based on the algorithm.
 */
public static String encodePassword(String password, String algorithm) {

    if (password == null) {
        return null;
    }

    Log log = LogFactory.getLog(StringUtil.class);
    byte[] unencodedPassword = password.getBytes();

    MessageDigest md;

    try {
        // first create an instance, given the provider
        md = MessageDigest.getInstance(algorithm);
    } catch (Exception e) {
        StringWriter sw = new StringWriter();
        e.printStackTrace(new PrintWriter(sw));
        if (log.isErrorEnabled()) {
            log.error(sw.toString());
        }
        return password;
    }

    md.reset();

    // call the update method one or more times
    // (useful when you don't know the size of your data, e.g. stream)
    md.update(unencodedPassword);

    // now calculate the hash
    byte[] encodedPassword = md.digest();

    StringBuffer buf = new StringBuffer();

    for (int i = 0; i < encodedPassword.length; i++) {
        if ((encodedPassword[i] & 0xff) < 0x10) {
            buf.append("0");
        }

        buf.append(Long.toString(encodedPassword[i] & 0xff, 16));
    }

    return buf.toString();
}

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From source file:net.jolm.util.UserPasswordHelper.java

/**
 * Calculates hash of clear text password to be stored in the userPassword
 * field./* w w w  .j a  v  a2 s.com*/
 * 
 * @param clearpass
 *            The password in plaintext that should be hashed.
 * @param alg
 *            The algorithm to caculate the hash.
 * @param salt
 *            The salt that is to be used together with the schemes {SMD5}
 *            and {SSHA}. Should be between 8 and 16 Bytes. salt should be
 *            null for any other scheme.
 * @return The base64-encoded hashed pwd with the following format: -
 *         {MD5}base64(MD5-hash) for MD5 hashes - {SHA}base64(SHA-hash) for
 *         SHA hashes - {SMD5}base64(MD5-hash+salt bytes) for SMD5 hashes -
 *         {SSHA}base64(SHA-hash+salt bytes) for SSHA hashes Or null if t is
 *         not one of 2, 3, 4, 5.
 */
public static byte[] clearPassToUserPassword(String clearpass, HashAlg alg, byte[] salt) {
    if (alg == null) {
        throw new IllegalArgumentException("Invalid hash argorithm.");
    }

    try {
        MessageDigest digester = null;
        StringBuilder resultInText = new StringBuilder();

        switch (alg) {
        case MD5:
            resultInText.append("{MD5}");
            digester = MessageDigest.getInstance("MD5");
            break;
        case SMD5:
            resultInText.append("{SMD5}");
            digester = MessageDigest.getInstance("MD5");
            break;
        case SHA:
            resultInText.append("{SHA}");
            digester = MessageDigest.getInstance("SHA");
            break;
        case SSHA:
            resultInText.append("{SSHA}");
            digester = MessageDigest.getInstance("SHA");
            break;
        default:
            break;
        }
        digester.reset();
        digester.update(clearpass.getBytes(DEFAULT_ENCODING));
        byte[] hash = null;
        if (salt != null && (alg == HashAlg.SMD5 || alg == HashAlg.SSHA)) {
            digester.update(salt);
            hash = ArrayUtils.addAll(digester.digest(), salt);
        } else {
            hash = digester.digest();
        }
        resultInText.append(new String(Base64.encodeBase64(hash), DEFAULT_ENCODING));
        return resultInText.toString().getBytes(DEFAULT_ENCODING);
    } catch (UnsupportedEncodingException uee) {
        log.warn("Error occurred while hashing password ", uee);
        return new byte[0];
    } catch (java.security.NoSuchAlgorithmException nse) {
        log.warn("Error occurred while hashing password ", nse);
        return new byte[0];
    }
}

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From source file:com.puyuntech.flowerToHome.plugin.unionpayPayment.SecureUtil.java

/**
 * md5.//  w w w. j  a v a2 s .  c  om
 * 
 * @param datas
 *            ?
 * @return 
 */
public static byte[] md5(byte[] datas) {
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance(ALGORITHM_MD5);
        md.reset();
        md.update(datas);
        return md.digest();
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:com.puyuntech.flowerToHome.plugin.unionpayPayment.SecureUtil.java

/**
 * sha1./*ww  w .ja  v a2 s .com*/
 * 
 * @param datas
 *            ?
 * @return 
 */
public static byte[] sha1(byte[] data) {
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance(ALGORITHM_SHA1);
        md.reset();
        md.update(data);
        return md.digest();
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:cn.usually.common.pay.union.sdk.SecureUtil.java

/**
 * md5.//w  w w.  ja va2s .  c o m
 * 
 * @param datas
 *            ?
 * @return 
 */
public static byte[] md5(byte[] datas) {
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance(ALGORITHM_MD5);
        md.reset();
        md.update(datas);
        return md.digest();
    } catch (Exception e) {
        e.printStackTrace();
        LogUtil.writeErrorLog("MD5", e);
        return null;
    }
}

---

From source file:cn.usually.common.pay.union.sdk.SecureUtil.java

/**
 * sha1.//from w w w  . j a v a 2 s  .c  o  m
 * 
 * @param datas
 *            ?
 * @return 
 */
public static byte[] sha1(byte[] data) {
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance(ALGORITHM_SHA1);
        md.reset();
        md.update(data);
        return md.digest();
    } catch (Exception e) {
        e.printStackTrace();
        LogUtil.writeErrorLog("SHA1", e);
        return null;
    }
}

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From source file:org.tigase.mobile.TrustCertDialog.java

public static Dialog createDIalogInstance(final Context context, final String account,
        final DataCertificateException cause, final Resources res, final Runnable actionAfterOK) {
    final X509Certificate[] chain = cause.getChain();

    final StringBuilder chainInfo = new StringBuilder();
    MessageDigest sha1 = null;

    try {/*from   w w w. ja v  a  2  s.co m*/
        sha1 = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException e) {
    }

    for (int i = 0; i < chain.length; i++) {
        chainInfo.append(res.getString(R.string.trustcert_certchain, i)).append("\n");
        chainInfo
                .append(res.getString(R.string.trustcert_subject,
                        chain[i].getSubjectX500Principal().getName(X500Principal.CANONICAL).toString()))
                .append("\n");
        chainInfo
                .append(res.getString(R.string.trustcert_issuer,
                        chain[i].getIssuerX500Principal().getName(X500Principal.CANONICAL).toString()))
                .append("\n");

        if (sha1 != null) {
            sha1.reset();
            try {
                char[] sha1sum = encodeHex(sha1.digest(chain[i].getEncoded()));
                chainInfo.append(res.getString(R.string.trustcert_fingerprint, new String(sha1sum)))
                        .append("\n");
            } catch (CertificateEncodingException e) {
            }
        }
    }

    Builder builder = new AlertDialog.Builder(context);
    builder.setIcon(android.R.drawable.ic_dialog_alert);
    builder.setTitle(R.string.trustcert_dialog_title);

    builder.setMessage(res.getString(R.string.trustcert_question, chainInfo));

    builder.setCancelable(true);
    builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int whichButton) {
            SecureTrustManagerFactory.add(chain);
            if (actionAfterOK != null)
                actionAfterOK.run();
        }
    });
    builder.setNegativeButton(android.R.string.no, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int whichButton) {
            dialog.dismiss();
        }
    });

    return builder.create();
}

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