Java Utililty Methods MD5

List of utility methods to do MD5

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Description

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

Method

StringbyteArrayMD5(byte[] entity)
Computes the MD5 of a byte array. 
MessageDigest md5 = null;
try {
    md5 = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException("Could not load MD5", e);
return toHexString(md5.digest(entity));
int[]core_md5(int[] K, int F)
cormd 
int[] X = new int[(((F + 64) >>> 9) << 4) + 14 + 2];
for (int i = 0; i < K.length; i++) {
    X[i] = K[i];
X[F >> 5] |= 128 << ((F) % 32);
X[(((F + 64) >>> 9) << 4) + 14] = F;
int J = 1732584193;
int I = -271733879;
...
StringdecodeMd5(String source)
decode Md 
if (source == null) {
    throw new NullPointerException();
String result = null;
return result;
StringdecryMd5(String source)
decry Md 
String s = convertMd5(source);
return convertMd5(s);
byte[]digestMD5(byte[] data)
digest MD 
return digest(data, ALGORITHM_MD5);
byte[]digestMd5(final String value)
Creates an MD5 hash of a String. 
final MessageDigest algorithm;
try {
    algorithm = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException(e);
return algorithm.digest(value.getBytes());
byte[]digestMD5(String buffer, String key)
Digests the buffer with key using MD5 algorithm. 
MessageDigest md5 = MessageDigest.getInstance("MD5");
md5.update(buffer.getBytes());
return md5.digest(key.getBytes());
StringdigestMD5(String data)
Digests the data with MD5 and returns the raw unencoded bytes. 
return getDigestedValue(MD5, data.getBytes());
StringdigestMD5(String login, String pass)
digest MD 
String input = login + pass;
try {
    input = byteArrayToHexString(digest(input.getBytes(), "MD5"));
} catch (NoSuchAlgorithmException e) {
    e.printStackTrace();
return input;
StringdigestMd5(String plain)
digest Md 
try {
    return digest(plain, "MD5");
} catch (NoSuchAlgorithmException e) {
    throw new RuntimeException(e);