Java Utililty Methods Security

List of utility methods to do Security

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Description

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

Method

voidaddLoginCallbackMessage(Callback[] callbacks, String userId, String password)
add Login Callback Message 
int i = 0;
try {
    for (i = 0; i < callbacks.length; i++) {
        if (callbacks[i] instanceof NameCallback) {
            NameCallback nc = (NameCallback) callbacks[i];
            nc.setName(userId);
        } else if (callbacks[i] instanceof PasswordCallback) {
            PasswordCallback pc = (PasswordCallback) callbacks[i];
...
voidaddLoginCallbackMessage(Callback[] callbacks, String username, String password)
Helper method for the datastoreLogin method. 
for (int i = 0; i < callbacks.length; i++) {
    if (callbacks[i] instanceof NameCallback) {
        ((NameCallback) callbacks[i]).setName(username);
    } else if (callbacks[i] instanceof PasswordCallback) {
        ((PasswordCallback) callbacks[i]).setPassword(password.toCharArray());
booleancanGetSubject()
Test whether the caller has AuthPermission("getSubject"). 
try {
    SecurityManager sm = System.getSecurityManager();
    if (sm != null)
        sm.checkPermission(new AuthPermission("getSubject"));
    return true;
} catch (SecurityException e) {
    return false;
voidcheckDoAsPermission()
check Do As Permission 
SecurityManager manager = System.getSecurityManager();
if (manager != null) {
    manager.checkPermission(DO_AS_PERMISSION);
booleancheckPolicy(int flags, Map props)
Determines whether a mechanism's characteristics, as defined in flags, fits the security policy properties found in props. 
if (props == null) {
    return true;
if ("true".equalsIgnoreCase((String) props.get(Sasl.POLICY_NOPLAINTEXT)) && (flags & NOPLAINTEXT) == 0) {
    return false;
if ("true".equalsIgnoreCase((String) props.get(Sasl.POLICY_NOACTIVE)) && (flags & NOACTIVE) == 0) {
    return false;
...
KerberosTicketcloneKerberosTicket(KerberosTicket kerberosTicket)
clone Kerberos Ticket 
if (kerberosTicket != null) {
    try {
        return (deserializeKerberosTicket(serializeKerberosTicket(kerberosTicket)));
    } catch (Exception e) {
        throw new RuntimeException("Failed to clone KerberosTicket TGT!!", e);
return null;
...
StringconvertLegacyToRFC2253(String dn)
convert Legacy To RFC 
int i = dn.toLowerCase().indexOf(" e=");
if (i < 0)
    i = dn.toLowerCase().indexOf(",e=");
if (i > 0) {
    dn = dn.substring(0, ++i) + "EMAILADDRESS" + dn.substring(++i);
return new X500Principal(dn).getName(X500Principal.RFC2253);
KerberosTicketcredsToTicket(Credentials serviceCreds)
creds To Ticket 
EncryptionKey sessionKey = serviceCreds.getSessionKey();
return new KerberosTicket(serviceCreds.getEncoded(),
        new KerberosPrincipal(serviceCreds.getClient().getName()),
        new KerberosPrincipal(serviceCreds.getServer().getName(), KerberosPrincipal.KRB_NT_SRV_INST),
        sessionKey.getBytes(), sessionKey.getEType(), serviceCreds.getFlags(), serviceCreds.getAuthTime(),
        serviceCreds.getStartTime(), serviceCreds.getEndTime(), serviceCreds.getRenewTill(),
        serviceCreds.getClientAddresses());
voidextractDirective(HashMap map, String key, String value)
Processes directive/value pairs from the digest-challenge and fill out the provided map. 
if (map.get(key) != null) {
    throw new SaslException("Peer sent more than one " + key + " directive");
map.put(key, value);
String[]filterMechs(String[] mechs, int[] policies, Map props)
Given a list of mechanisms and their characteristics, select the subset that conforms to the policies defined in props. 
if (props == null) {
    return mechs.clone();
boolean[] passed = new boolean[mechs.length];
int count = 0;
for (int i = 0; i < mechs.length; i++) {
    if (passed[i] = checkPolicy(policies[i], props)) {
        ++count;
...