Examples with KerberosTime sun.security.krb5.internal.KerberosTime used on opensource projects

Example 6 with KerberosTime

use of sun.security.krb5.internal.KerberosTime in project jdk8u_jdk by JetBrains.

the class AuthList method put.

/**
     * Puts the authenticator timestamp into the cache in descending order,
     * and throw an exception if it's already there.
     */
public void put(AuthTimeWithHash t, KerberosTime currentTime) throws KrbApErrException {
    if (entries.isEmpty()) {
        entries.addFirst(t);
    } else {
        AuthTimeWithHash temp = entries.getFirst();
        int cmp = temp.compareTo(t);
        if (cmp < 0) {
            // This is the most common case, newly received authenticator
            // has larger timestamp.
            entries.addFirst(t);
        } else if (cmp == 0) {
            throw new KrbApErrException(Krb5.KRB_AP_ERR_REPEAT);
        } else {
            //unless client clock being re-adjusted.
            ListIterator<AuthTimeWithHash> it = entries.listIterator(1);
            boolean found = false;
            while (it.hasNext()) {
                temp = it.next();
                cmp = temp.compareTo(t);
                if (cmp < 0) {
                    // Find an older one, put in front of it
                    entries.add(entries.indexOf(temp), t);
                    found = true;
                    break;
                } else if (cmp == 0) {
                    throw new KrbApErrException(Krb5.KRB_AP_ERR_REPEAT);
                }
            }
            if (!found) {
                // All is newer than the newcomer. Sigh.
                entries.addLast(t);
            }
        }
    }
    // let us cleanup while we are here
    long timeLimit = currentTime.getSeconds() - lifespan;
    ListIterator<AuthTimeWithHash> it = entries.listIterator(0);
    AuthTimeWithHash temp = null;
    int index = -1;
    while (it.hasNext()) {
        // search expired timestamps.
        temp = it.next();
        if (temp.ctime < timeLimit) {
            index = entries.indexOf(temp);
            break;
        }
    }
    // It would be nice if LinkedList has a method called truncate(index).
    if (index > -1) {
        do {
            // remove expired timestamps from the list.
            entries.removeLast();
        } while (entries.size() > index);
    }
}

Example 7 with KerberosTime

use of sun.security.krb5.internal.KerberosTime in project jdk8u_jdk by JetBrains.

the class KDC method processAsReq.

/**
     * Processes a AS_REQ and generates a AS_REP (or KRB_ERROR)
     * @param in the request
     * @return the response
     * @throws java.lang.Exception for various errors
     */
protected byte[] processAsReq(byte[] in) throws Exception {
    ASReq asReq = new ASReq(in);
    int[] eTypes = null;
    List<PAData> outPAs = new ArrayList<>();
    PrincipalName service = asReq.reqBody.sname;
    if (options.containsKey(KDC.Option.RESP_NT)) {
        service = new PrincipalName((int) options.get(KDC.Option.RESP_NT), service.getNameStrings(), Realm.getDefault());
    }
    try {
        System.out.println(realm + "> " + asReq.reqBody.cname + " sends AS-REQ for " + service + ", " + asReq.reqBody.kdcOptions);
        KDCReqBody body = asReq.reqBody;
        eTypes = KDCReqBodyDotEType(body);
        int eType = eTypes[0];
        EncryptionKey ckey = keyForUser(body.cname, eType, false);
        EncryptionKey skey = keyForUser(service, eType, true);
        if (options.containsKey(KDC.Option.ONLY_RC4_TGT)) {
            int tgtEType = EncryptedData.ETYPE_ARCFOUR_HMAC;
            boolean found = false;
            for (int i = 0; i < eTypes.length; i++) {
                if (eTypes[i] == tgtEType) {
                    found = true;
                    break;
                }
            }
            if (!found) {
                throw new KrbException(Krb5.KDC_ERR_ETYPE_NOSUPP);
            }
            skey = keyForUser(service, tgtEType, true);
        }
        if (ckey == null) {
            throw new KrbException(Krb5.KDC_ERR_ETYPE_NOSUPP);
        }
        if (skey == null) {
            // TODO
            throw new KrbException(Krb5.KDC_ERR_SUMTYPE_NOSUPP);
        }
        // Session key
        EncryptionKey key = generateRandomKey(eType);
        // Check time, TODO
        KerberosTime till = body.till;
        if (till == null) {
            // TODO
            throw new KrbException(Krb5.KDC_ERR_NEVER_VALID);
        } else if (till.isZero()) {
            till = new KerberosTime(new Date().getTime() + 1000 * 3600 * 11);
        }
        //body.from
        boolean[] bFlags = new boolean[Krb5.TKT_OPTS_MAX + 1];
        if (body.kdcOptions.get(KDCOptions.FORWARDABLE)) {
            List<String> sensitives = (List<String>) options.get(Option.SENSITIVE_ACCOUNTS);
            if (sensitives != null && sensitives.contains(body.cname.toString())) {
            // Cannot make FORWARDABLE
            } else {
                bFlags[Krb5.TKT_OPTS_FORWARDABLE] = true;
            }
        }
        if (body.kdcOptions.get(KDCOptions.RENEWABLE)) {
            bFlags[Krb5.TKT_OPTS_RENEWABLE] = true;
        //renew = new KerberosTime(new Date().getTime() + 1000 * 3600 * 24 * 7);
        }
        if (body.kdcOptions.get(KDCOptions.PROXIABLE)) {
            bFlags[Krb5.TKT_OPTS_PROXIABLE] = true;
        }
        if (body.kdcOptions.get(KDCOptions.POSTDATED)) {
            bFlags[Krb5.TKT_OPTS_POSTDATED] = true;
        }
        if (body.kdcOptions.get(KDCOptions.ALLOW_POSTDATE)) {
            bFlags[Krb5.TKT_OPTS_MAY_POSTDATE] = true;
        }
        bFlags[Krb5.TKT_OPTS_INITIAL] = true;
        // Creating PA-DATA
        DerValue[] pas2 = null, pas = null;
        if (options.containsKey(KDC.Option.DUP_ETYPE)) {
            int n = (Integer) options.get(KDC.Option.DUP_ETYPE);
            switch(n) {
                case // customer's case in 7067974
                1:
                    pas2 = new DerValue[] { new DerValue(new ETypeInfo2(1, null, null).asn1Encode()), new DerValue(new ETypeInfo2(1, "", null).asn1Encode()), new DerValue(new ETypeInfo2(1, realm, new byte[] { 1 }).asn1Encode()) };
                    pas = new DerValue[] { new DerValue(new ETypeInfo(1, null).asn1Encode()), new DerValue(new ETypeInfo(1, "").asn1Encode()), new DerValue(new ETypeInfo(1, realm).asn1Encode()) };
                    break;
                case // we still reject non-null s2kparams and prefer E2 over E
                2:
                    pas2 = new DerValue[] { new DerValue(new ETypeInfo2(1, realm, new byte[] { 1 }).asn1Encode()), new DerValue(new ETypeInfo2(1, null, null).asn1Encode()), new DerValue(new ETypeInfo2(1, "", null).asn1Encode()) };
                    pas = new DerValue[] { new DerValue(new ETypeInfo(1, realm).asn1Encode()), new DerValue(new ETypeInfo(1, null).asn1Encode()), new DerValue(new ETypeInfo(1, "").asn1Encode()) };
                    break;
                case // but only E is wrong
                3:
                    pas = new DerValue[] { new DerValue(new ETypeInfo(1, realm).asn1Encode()), new DerValue(new ETypeInfo(1, null).asn1Encode()), new DerValue(new ETypeInfo(1, "").asn1Encode()) };
                    break;
                case // we also ignore rc4-hmac
                4:
                    pas = new DerValue[] { new DerValue(new ETypeInfo(23, "ANYTHING").asn1Encode()), new DerValue(new ETypeInfo(1, null).asn1Encode()), new DerValue(new ETypeInfo(1, "").asn1Encode()) };
                    break;
                case // "" should be wrong, but we accept it now
                5:
                    // See s.s.k.internal.PAData$SaltAndParams
                    pas = new DerValue[] { new DerValue(new ETypeInfo(1, "").asn1Encode()), new DerValue(new ETypeInfo(1, null).asn1Encode()) };
                    break;
            }
        } else {
            int[] epas = eTypes;
            if (options.containsKey(KDC.Option.RC4_FIRST_PREAUTH)) {
                for (int i = 1; i < epas.length; i++) {
                    if (epas[i] == EncryptedData.ETYPE_ARCFOUR_HMAC) {
                        epas[i] = epas[0];
                        epas[0] = EncryptedData.ETYPE_ARCFOUR_HMAC;
                        break;
                    }
                }
                ;
            } else if (options.containsKey(KDC.Option.ONLY_ONE_PREAUTH)) {
                epas = new int[] { eTypes[0] };
            }
            pas2 = new DerValue[epas.length];
            for (int i = 0; i < epas.length; i++) {
                pas2[i] = new DerValue(new ETypeInfo2(epas[i], epas[i] == EncryptedData.ETYPE_ARCFOUR_HMAC ? null : getSalt(body.cname), null).asn1Encode());
            }
            boolean allOld = true;
            for (int i : eTypes) {
                if (i == EncryptedData.ETYPE_AES128_CTS_HMAC_SHA1_96 || i == EncryptedData.ETYPE_AES256_CTS_HMAC_SHA1_96) {
                    allOld = false;
                    break;
                }
            }
            if (allOld) {
                pas = new DerValue[epas.length];
                for (int i = 0; i < epas.length; i++) {
                    pas[i] = new DerValue(new ETypeInfo(epas[i], epas[i] == EncryptedData.ETYPE_ARCFOUR_HMAC ? null : getSalt(body.cname)).asn1Encode());
                }
            }
        }
        DerOutputStream eid;
        if (pas2 != null) {
            eid = new DerOutputStream();
            eid.putSequence(pas2);
            outPAs.add(new PAData(Krb5.PA_ETYPE_INFO2, eid.toByteArray()));
        }
        if (pas != null) {
            eid = new DerOutputStream();
            eid.putSequence(pas);
            outPAs.add(new PAData(Krb5.PA_ETYPE_INFO, eid.toByteArray()));
        }
        PAData[] inPAs = KDCReqDotPAData(asReq);
        if (inPAs == null || inPAs.length == 0) {
            Object preauth = options.get(Option.PREAUTH_REQUIRED);
            if (preauth == null || preauth.equals(Boolean.TRUE)) {
                throw new KrbException(Krb5.KDC_ERR_PREAUTH_REQUIRED);
            }
        } else {
            try {
                EncryptedData data = newEncryptedData(new DerValue(inPAs[0].getValue()));
                EncryptionKey pakey = keyForUser(body.cname, data.getEType(), false);
                data.decrypt(pakey, KeyUsage.KU_PA_ENC_TS);
            } catch (Exception e) {
                throw new KrbException(Krb5.KDC_ERR_PREAUTH_FAILED);
            }
            bFlags[Krb5.TKT_OPTS_PRE_AUTHENT] = true;
        }
        TicketFlags tFlags = new TicketFlags(bFlags);
        EncTicketPart enc = new EncTicketPart(tFlags, key, body.cname, new TransitedEncoding(1, new byte[0]), new KerberosTime(new Date()), body.from, till, body.rtime, body.addresses, null);
        Ticket t = new Ticket(service, new EncryptedData(skey, enc.asn1Encode(), KeyUsage.KU_TICKET));
        EncASRepPart enc_part = new EncASRepPart(key, new LastReq(new LastReqEntry[] { new LastReqEntry(0, new KerberosTime(new Date().getTime() - 10000)) }), // TODO: detect replay?
        body.getNonce(), new KerberosTime(new Date().getTime() + 1000 * 3600 * 24), // Next 5 and last MUST be same with ticket
        tFlags, new KerberosTime(new Date()), body.from, till, body.rtime, service, body.addresses);
        EncryptedData edata = new EncryptedData(ckey, enc_part.asn1Encode(), KeyUsage.KU_ENC_AS_REP_PART);
        ASRep asRep = new ASRep(outPAs.toArray(new PAData[outPAs.size()]), body.cname, t, edata);
        System.out.println("     Return " + asRep.cname + " ticket for " + asRep.ticket.sname + ", flags " + tFlags);
        DerOutputStream out = new DerOutputStream();
        out.write(DerValue.createTag(DerValue.TAG_APPLICATION, true, (byte) Krb5.KRB_AS_REP), asRep.asn1Encode());
        byte[] result = out.toByteArray();
        // Added feature:
        // Write the current issuing TGT into a ccache file specified
        // by the system property below.
        String ccache = System.getProperty("test.kdc.save.ccache");
        if (ccache != null) {
            asRep.encKDCRepPart = enc_part;
            sun.security.krb5.internal.ccache.Credentials credentials = new sun.security.krb5.internal.ccache.Credentials(asRep);
            CredentialsCache cache = CredentialsCache.create(asReq.reqBody.cname, ccache);
            if (cache == null) {
                throw new IOException("Unable to create the cache file " + ccache);
            }
            cache.update(credentials);
            cache.save();
        }
        return result;
    } catch (KrbException ke) {
        ke.printStackTrace(System.out);
        KRBError kerr = ke.getError();
        KDCReqBody body = asReq.reqBody;
        System.out.println("     Error " + ke.returnCode() + " " + ke.returnCodeMessage());
        byte[] eData = null;
        if (kerr == null) {
            if (ke.returnCode() == Krb5.KDC_ERR_PREAUTH_REQUIRED || ke.returnCode() == Krb5.KDC_ERR_PREAUTH_FAILED) {
                DerOutputStream bytes = new DerOutputStream();
                bytes.write(new PAData(Krb5.PA_ENC_TIMESTAMP, new byte[0]).asn1Encode());
                for (PAData p : outPAs) {
                    bytes.write(p.asn1Encode());
                }
                DerOutputStream temp = new DerOutputStream();
                temp.write(DerValue.tag_Sequence, bytes);
                eData = temp.toByteArray();
            }
            kerr = new KRBError(null, null, null, new KerberosTime(new Date()), 0, ke.returnCode(), body.cname, service, KrbException.errorMessage(ke.returnCode()), eData);
        }
        return kerr.asn1Encode();
    }
}

Example 8 with KerberosTime

use of sun.security.krb5.internal.KerberosTime in project jdk8u_jdk by JetBrains.

the class ReplayCachePrecise method main.

public static void main(String[] args) throws Exception {
    AuthTimeWithHash a1 = new AuthTimeWithHash(client, server, time(0), 0, "1111111111111111");
    AuthTimeWithHash a2 = new AuthTimeWithHash(client, server, time(0), 0, "2222222222222222");
    KerberosTime now = new KerberosTime(time(0) * 1000L);
    // When all new styles, must exact match
    ReplayCache cache = ReplayCache.getInstance("dfl:./c1");
    cache.checkAndStore(now, a1);
    cache.checkAndStore(now, a2);
    // When only old style in cache, partial match
    cache = ReplayCache.getInstance("dfl:./c2");
    cache.checkAndStore(now, a1);
    // A small surgery to remove the new style from the cache file
    SeekableByteChannel ch = Files.newByteChannel(Paths.get("c2"), StandardOpenOption.WRITE, StandardOpenOption.READ);
    ch.position(6);
    ch.write(ByteBuffer.wrap(a1.encode(false)));
    ch.truncate(ch.position());
    ch.close();
    try {
        cache.checkAndStore(now, a2);
        throw new Exception();
    } catch (KrbException ke) {
        // Correct
        System.out.println(ke);
    }
}