Java Utililty Methods MD5

String byteArrayMD5(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;
...

String decodeMd5(String source)
decode Md

if (source == null) {
 throw new NullPointerException();
String result = null;
return result;

String decryMd5(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());

String digestMD5(String data)
Digests the data with MD5 and returns the raw unencoded bytes.

return getDigestedValue(MD5, data.getBytes());

String digestMD5(String login, String pass)
digest MD

String input = login + pass;
try {
 input = byteArrayToHexString(digest(input.getBytes(), "MD5"));
} catch (NoSuchAlgorithmException e) {
 e.printStackTrace();
return input;

String digestMd5(String plain)
digest Md

try {
 return digest(plain, "MD5");
} catch (NoSuchAlgorithmException e) {
 throw new RuntimeException(e);