Java Code Examples for java.security.AlgorithmConstraints#permits()

The following examples show how to use java.security.AlgorithmConstraints#permits() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: SupportedGroupsExtension.java From openjsse with GNU General Public License v2.0

6 votes

static NamedGroup getPreferredGroup(
        ProtocolVersion negotiatedProtocol,
        AlgorithmConstraints constraints, NamedGroupType type,
        List<NamedGroup> requestedNamedGroups) {
    for (NamedGroup namedGroup : requestedNamedGroups) {
        if ((namedGroup.type == type) &&
                namedGroup.isAvailable(negotiatedProtocol) &&
                isSupported(namedGroup) &&
                constraints.permits(
                        EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                        namedGroup.algorithm,
                        namedGroupParams.get(namedGroup))) {
            return namedGroup;
        }
    }

    return null;
}

Example 2

Source File: EllipticCurvesExtension.java From openjdk-jdk8u with GNU General Public License v2.0

6 votes

static EllipticCurvesExtension createExtension(
            AlgorithmConstraints constraints) {

    ArrayList<Integer> idList = new ArrayList<>(supportedCurveIds.length);
    for (int curveId : supportedCurveIds) {
        if (constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                            "EC", idToParams.get(curveId))) {
            idList.add(curveId);
        }
    }

    if (!idList.isEmpty()) {
        int[] ids = new int[idList.size()];
        int i = 0;
        for (Integer id : idList) {
            ids[i++] = id;
        }

        return new EllipticCurvesExtension(ids);
    }

    return null;
}

Example 3

Source File: SupportedEllipticCurvesExtension.java From jdk8u-jdk with GNU General Public License v2.0

6 votes

static SupportedEllipticCurvesExtension createExtension(
            AlgorithmConstraints constraints) {

    ArrayList<Integer> idList = new ArrayList<>(supportedCurveIds.length);
    for (int curveId : supportedCurveIds) {
        if (constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                            "EC", idToParams.get(curveId))) {
            idList.add(curveId);
        }
    }

    if (!idList.isEmpty()) {
        int[] ids = new int[idList.size()];
        int i = 0;
        for (Integer id : idList) {
            ids[i++] = id;
        }

        return new SupportedEllipticCurvesExtension(ids);
    }

    return null;
}

Example 4

Source File: ECDHKeyExchange.java From Bytecoder with Apache License 2.0

6 votes

void checkConstraints(AlgorithmConstraints constraints,
        byte[] encodedPoint) throws SSLHandshakeException {
    try {

        ECParameterSpec params = publicKey.getParams();
        ECPoint point =
                ECUtil.decodePoint(encodedPoint, params.getCurve());
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);

        KeyFactory kf = KeyFactory.getInstance("EC");
        ECPublicKey pubKey = (ECPublicKey)kf.generatePublic(spec);

        // check constraints of ECPublicKey
        if (!constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), pubKey)) {
            throw new SSLHandshakeException(
                "ECPublicKey does not comply to algorithm constraints");
        }
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException(
                "Could not generate ECPublicKey").initCause(e);
    }
}

Example 5

Source File: ECDHKeyExchange.java From openjsse with GNU General Public License v2.0

6 votes

void checkConstraints(AlgorithmConstraints constraints,
        byte[] encodedPoint) throws SSLHandshakeException {
    try {

        ECParameterSpec params = publicKey.getParams();
        ECPoint point =
                JsseJce.decodePoint(encodedPoint, params.getCurve());
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);

        KeyFactory kf = JsseJce.getKeyFactory("EC");
        ECPublicKey pubKey = (ECPublicKey)kf.generatePublic(spec);

        // check constraints of ECPublicKey
        if (!constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), pubKey)) {
            throw new SSLHandshakeException(
                "ECPublicKey does not comply to algorithm constraints");
        }
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException(
                "Could not generate ECPublicKey").initCause(e);
    }
}

Example 6

Source File: ECDHClientKeyExchange.java From openjsse with GNU General Public License v2.0

6 votes

static void checkConstraints(AlgorithmConstraints constraints,
        ECPublicKey publicKey,
        byte[] encodedPoint) throws SSLHandshakeException {

    try {
        ECParameterSpec params = publicKey.getParams();
        ECPoint point =
                JsseJce.decodePoint(encodedPoint, params.getCurve());
        ECPublicKeySpec spec = new ECPublicKeySpec(point, params);

        KeyFactory kf = JsseJce.getKeyFactory("EC");
        ECPublicKey peerPublicKey =
                (ECPublicKey)kf.generatePublic(spec);

        // check constraints of ECPublicKey
        if (!constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                peerPublicKey)) {
            throw new SSLHandshakeException(
                "ECPublicKey does not comply to algorithm constraints");
        }
    } catch (GeneralSecurityException | java.io.IOException e) {
        throw (SSLHandshakeException) new SSLHandshakeException(
                "Could not generate ECPublicKey").initCause(e);
    }
}

Example 7

Source File: EllipticCurvesExtension.java From dragonwell8_jdk with GNU General Public License v2.0

6 votes

static EllipticCurvesExtension createExtension(
            AlgorithmConstraints constraints) {

    ArrayList<Integer> idList = new ArrayList<>(supportedCurveIds.length);
    for (int curveId : supportedCurveIds) {
        if (constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                            "EC", idToParams.get(curveId))) {
            idList.add(curveId);
        }
    }

    if (!idList.isEmpty()) {
        int[] ids = new int[idList.size()];
        int i = 0;
        for (Integer id : idList) {
            ids[i++] = id;
        }

        return new EllipticCurvesExtension(ids);
    }

    return null;
}

Example 8

Source File: SignatureAndHashAlgorithm.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm> getSupportedAlgorithms(
        AlgorithmConstraints constraints,
        Collection<SignatureAndHashAlgorithm> algorithms ) {
    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : algorithms) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                            sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 9

Source File: SignatureAndHashAlgorithm.java From openjdk-jdk8u with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm> getSupportedAlgorithms(
        AlgorithmConstraints constraints,
        Collection<SignatureAndHashAlgorithm> algorithms ) {
    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : algorithms) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                            sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 10

Source File: SignatureAndHashAlgorithm.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm>
        getSupportedAlgorithms(AlgorithmConstraints constraints) {

    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : priorityMap.values()) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                        sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 11

Source File: SignatureAndHashAlgorithm.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm> getSupportedAlgorithms(
        AlgorithmConstraints constraints,
        Collection<SignatureAndHashAlgorithm> algorithms ) {
    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : algorithms) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                            sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 12

Source File: SignatureAndHashAlgorithm.java From jdk8u-jdk with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm> getSupportedAlgorithms(
        AlgorithmConstraints constraints,
        Collection<SignatureAndHashAlgorithm> algorithms ) {
    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : algorithms) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                            sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 13

Source File: SignatureAndHashAlgorithm.java From TencentKona-8 with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm> getSupportedAlgorithms(
        AlgorithmConstraints constraints,
        Collection<SignatureAndHashAlgorithm> algorithms ) {
    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : algorithms) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                            sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 14

Source File: SignatureAndHashAlgorithm.java From TencentKona-8 with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm>
        getSupportedAlgorithms(AlgorithmConstraints constraints) {

    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : priorityMap.values()) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                        sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 15

Source File: SupportedGroupsExtension.java From openjsse with GNU General Public License v2.0

5 votes

static boolean isActivatable(
        AlgorithmConstraints constraints, NamedGroupType type) {

    boolean hasFFDHEGroups = false;
    for (NamedGroup namedGroup : supportedNamedGroups) {
        if (namedGroup.type == type) {
            if (constraints.permits(
                    EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                    namedGroup.algorithm,
                    namedGroupParams.get(namedGroup))) {

                return true;
            }

            if (!hasFFDHEGroups &&
                    (type == NamedGroupType.NAMED_GROUP_FFDHE)) {
                hasFFDHEGroups = true;
            }
        }
    }

    // For compatibility, if no FFDHE groups are defined, the non-FFDHE
    // compatible mode (using DHE cipher suite without FFDHE extension)
    // is allowed.
    //
    // Note that the constraints checking on DHE parameters will be
    // performed during key exchanging in a handshake.
    return !hasFFDHEGroups && type == NamedGroupType.NAMED_GROUP_FFDHE;
}

Example 16

Source File: SignatureAndHashAlgorithm.java From dragonwell8_jdk with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm>
        getSupportedAlgorithms(AlgorithmConstraints constraints) {

    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : priorityMap.values()) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                        sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 17

Source File: SignatureAndHashAlgorithm.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

static Collection<SignatureAndHashAlgorithm>
        getSupportedAlgorithms(AlgorithmConstraints constraints) {

    Collection<SignatureAndHashAlgorithm> supported = new ArrayList<>();
    for (SignatureAndHashAlgorithm sigAlg : priorityMap.values()) {
        if (sigAlg.priority <= SUPPORTED_ALG_PRIORITY_MAX_NUM &&
                constraints.permits(SIGNATURE_PRIMITIVE_SET,
                        sigAlg.algorithm, null)) {
            supported.add(sigAlg);
        }
    }

    return supported;
}

Example 18

Source File: EllipticCurvesExtension.java From openjdk-jdk9 with GNU General Public License v2.0

5 votes

private static int getPreferredCurve(int[] curves,
            AlgorithmConstraints constraints) {
    for (int curveId : curves) {
        if (isSupported(curveId) && constraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                            "EC", idToParams.get(curveId))) {
            return curveId;
        }
    }

    return -1;
}

Example 19

Source File: HandshakeContext.java From Bytecoder with Apache License 2.0

4 votes

private static List<ProtocolVersion> getActiveProtocols(
        List<ProtocolVersion> enabledProtocols,
        List<CipherSuite> enabledCipherSuites,
        AlgorithmConstraints algorithmConstraints) {
    boolean enabledSSL20Hello = false;
    ArrayList<ProtocolVersion> protocols = new ArrayList<>(4);
    for (ProtocolVersion protocol : enabledProtocols) {
        if (!enabledSSL20Hello && protocol == ProtocolVersion.SSL20Hello) {
            enabledSSL20Hello = true;
            continue;
        }

        if (!algorithmConstraints.permits(
                EnumSet.of(CryptoPrimitive.KEY_AGREEMENT),
                protocol.name, null)) {
            // Ignore disabled protocol.
            continue;
        }

        boolean found = false;
        Map<NamedGroupSpec, Boolean> cachedStatus =
                new EnumMap<>(NamedGroupSpec.class);
        for (CipherSuite suite : enabledCipherSuites) {
            if (suite.isAvailable() && suite.supports(protocol)) {
                if (isActivatable(suite,
                        algorithmConstraints, cachedStatus)) {
                    protocols.add(protocol);
                    found = true;
                    break;
                }
            } else if (SSLLogger.isOn && SSLLogger.isOn("verbose")) {
                SSLLogger.fine(
                    "Ignore unsupported cipher suite: " + suite +
                         " for " + protocol);
            }
        }

        if (!found && (SSLLogger.isOn) && SSLLogger.isOn("handshake")) {
            SSLLogger.fine(
                "No available cipher suite for " + protocol);
        }
    }

    if (!protocols.isEmpty()) {
        if (enabledSSL20Hello) {
            protocols.add(ProtocolVersion.SSL20Hello);
        }
        Collections.sort(protocols);
    }

    return Collections.unmodifiableList(protocols);
}

Example 20

Source File: HandshakeContext.java From openjsse with GNU General Public License v2.0

4 votes

private static boolean isActivatable(CipherSuite suite,
        AlgorithmConstraints algorithmConstraints,
        Map<NamedGroupType, Boolean> cachedStatus) {

    if (algorithmConstraints.permits(
            EnumSet.of(CryptoPrimitive.KEY_AGREEMENT), suite.name, null)) {
        if (suite.keyExchange == null) {
            // TLS 1.3, no definition of key exchange in cipher suite.
            return true;
        }

        boolean available;
        NamedGroupType groupType = suite.keyExchange.groupType;
        if (groupType != NAMED_GROUP_NONE) {
            Boolean checkedStatus = cachedStatus.get(groupType);
            if (checkedStatus == null) {
                available = SupportedGroups.isActivatable(
                        algorithmConstraints, groupType);
                cachedStatus.put(groupType, available);

                if (!available &&
                        SSLLogger.isOn && SSLLogger.isOn("verbose")) {
                    SSLLogger.fine("No activated named group");
                }
            } else {
                available = checkedStatus;
            }

            if (!available && SSLLogger.isOn && SSLLogger.isOn("verbose")) {
                SSLLogger.fine(
                    "No active named group, ignore " + suite);
            }
            return available;
        } else {
            return true;
        }
    } else if (SSLLogger.isOn && SSLLogger.isOn("verbose")) {
        SSLLogger.fine("Ignore disabled cipher suite: " + suite);
    }

    return false;
}