Java Utililty Methods MD5 String

List of utility methods to do MD5 String

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Description

The list of methods to do MD5 String are organized into topic(s).

Method

Stringmd5Hex(String str)
md Hex 
if (str == null) {
    return null;
StringBuffer hexStrSb = new StringBuffer();
MessageDigest md = MessageDigest.getInstance("MD5");
byte[] hash = md.digest(str.getBytes());
for (int i = 0; i < hash.length; i++) {
    if ((0xff & hash[i]) < 0x10) {
...
byte[]md5raw(String data)
mdraw 
try {
    MessageDigest md = MessageDigest.getInstance(MD);
    md.update(data.getBytes(UTF8));
    return md.digest();
} catch (Exception e) {
    throw new RuntimeException(e);
Stringmd5Representation(String data)
Returns a md5 representation of the given string 
try {
    MessageDigest messageDigest = MessageDigest.getInstance("MD5");
    byte[] digest = messageDigest.digest(data.getBytes("US-ASCII"));
    return byteArrayToString(digest);
} catch (NoSuchAlgorithmException nsae) {
    throw new RuntimeException("No MD5 algorithm");
} catch (UnsupportedEncodingException e) {
    throw new RuntimeException("No UTF-8");
...
Stringmd5Signature(TreeMap params, String secret)
md Signature 
String result = null;
StringBuffer orgin = getBeforeSign(params, new StringBuffer(secret));
if (orgin == null)
    return result;
orgin.append(secret);
try {
    MessageDigest md = MessageDigest.getInstance("MD5");
    result = byte2hex(md.digest(orgin.toString().getBytes("utf-8")));
...
Stringmd5Signature(TreeMap params, String secret)
md Signature 
String result = null;
StringBuffer orgin = null;
try {
    orgin = getBeforeSign(params, new StringBuffer(secret));
} catch (UnsupportedEncodingException e1) {
    throw new java.lang.RuntimeException("sign encode error !");
if (orgin == null)
...
Stringmd5String(String input)
MD5 hashes the given input string and returns the hex digest in String form. 
String result = "";
MessageDigest algorithm;
try {
    algorithm = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException(e);
algorithm.reset();
...
Stringmd5String(String key)
md String 
byte[] messageDigest = md5(key);
return toHex(messageDigest);
Stringmd5String(String paramString)
md String 
try {
    MessageDigest localMessageDigest = MessageDigest.getInstance("MD5");
    localMessageDigest.update(paramString.getBytes("UTF-8"), 0, paramString.length());
    String str = toHexString(localMessageDigest.digest());
    return str;
} catch (Exception localException) {
return "";
...
Stringmd5String(String s)
md String 
try {
    MessageDigest messagedigest = MessageDigest.getInstance("MD5");
    byte abyte0[] = s.getBytes();
    abyte0 = messagedigest.digest(abyte0);
    StringBuffer stringbuffer = new StringBuffer(32);
    for (int i = 0; i < abyte0.length; i++) {
        String s1 = Integer.toHexString(abyte0[i] & 0xff);
        if (s1.length() == 1)
...
Stringmd5String(String s)
md String 
byte messageDigest[] = md5Bytes(s);
if (messageDigest == null) {
    return "";
return hashToString(messageDigest);