org.jose4j.jwk.SelectorSupport Maven / Gradle / Ivy
/*
* Copyright 2012-2017 Brian Campbell
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jose4j.jwk;
import org.jose4j.jwe.JsonWebEncryption;
import org.jose4j.jws.JsonWebSignature;
import org.jose4j.jwx.JsonWebStructure;
import org.jose4j.lang.JoseException;
/**
*
*/
class SelectorSupport
{
private static final String[] VERIFY_OPS = new String[] {KeyOperations.VERIFY};
private static final String[] DECRYPT_OPS = new String[] {KeyOperations.DECRYPT, KeyOperations.DERIVE_KEY, KeyOperations.UNWRAP_KEY};
public static SimpleJwkFilter filterForInboundSigned(JsonWebSignature jws) throws JoseException
{
SimpleJwkFilter filter = commonFilterForInbound(jws);
filter.setUse(Use.SIGNATURE, SimpleJwkFilter.OMITTED_OKAY);
filter.setKeyOperations(VERIFY_OPS, SimpleJwkFilter.OMITTED_OKAY);
return filter;
}
public static SimpleJwkFilter filterForInboundEncrypted(JsonWebEncryption jwe) throws JoseException
{
SimpleJwkFilter filter = commonFilterForInbound(jwe);
filter.setUse(Use.ENCRYPTION, SimpleJwkFilter.OMITTED_OKAY);
filter.setKeyOperations(DECRYPT_OPS, SimpleJwkFilter.OMITTED_OKAY);
return filter;
}
private static SimpleJwkFilter commonFilterForInbound(JsonWebStructure jwx) throws JoseException
{
SimpleJwkFilter filter = new SimpleJwkFilter();
String kid = jwx.getKeyIdHeaderValue();
if (kid != null)
{
filter.setKid(kid, SimpleJwkFilter.VALUE_REQUIRED);
}
String x5t = jwx.getX509CertSha1ThumbprintHeaderValue();
String x5tS256 = jwx.getX509CertSha256ThumbprintHeaderValue();
filter.setAllowFallbackDeriveFromX5cForX5Thumbs(true);
if (x5t != null)
{
filter.setX5t(x5t, SimpleJwkFilter.OMITTED_OKAY);
}
if (x5tS256 != null)
{
filter.setX5tS256(x5tS256, SimpleJwkFilter.OMITTED_OKAY);
}
String keyType = jwx.getAlgorithmNoConstraintCheck().getKeyType();
filter.setKty(keyType);
return filter;
}
}