Android Utililty Methods MD5 Encode

Description

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

Method

boolean

isValidMD5String(String md5String)
is Valid MD String

if (md5String != null) {
    return md5String.length() == 32;
return false;

String

stringToMD5(String key)
string To MD

String cacheKey;
try {
    final MessageDigest mDigest = MessageDigest.getInstance("MD5");
    mDigest.update(key.getBytes());
    cacheKey = bytesToHexString(mDigest.digest());
} catch (NoSuchAlgorithmException e) {
    cacheKey = String.valueOf(key.hashCode());
return cacheKey;

String

toMD5(final String toEncrypt)
to MD

try {
    final MessageDigest digest = MessageDigest.getInstance("md5");
    digest.update(toEncrypt.getBytes());
    final byte[] bytes = digest.digest();
    final StringBuilder sb = new StringBuilder();
    for (int i = 0; i < bytes.length; i++) {
        sb.append(String.format("%02X", bytes[i]));
    return sb.toString().toLowerCase();
} catch (Exception exc) {
    return null;