com.guardtime.ksi.unisignature.verifier.rules.CalendarHashChainExistenceRule Maven / Gradle / Ivy
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/*
* Copyright 2013-2018 Guardtime, Inc.
*
* This file is part of the Guardtime client SDK.
*
* 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, CONDITIONS, OR OTHER LICENSES OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
* "Guardtime" and "KSI" are trademarks or registered trademarks of
* Guardtime, Inc., and no license to trademarks is granted; Guardtime
* reserves and retains all trademark rights.
*
*/
package com.guardtime.ksi.unisignature.verifier.rules;
import com.guardtime.ksi.exceptions.KSIException;
import com.guardtime.ksi.unisignature.verifier.VerificationContext;
import com.guardtime.ksi.unisignature.verifier.VerificationErrorCode;
import com.guardtime.ksi.unisignature.verifier.VerificationResultCode;
import com.guardtime.ksi.unisignature.CalendarHashChain;
/**
* Checks if KSI signature contains calendar hash chain. Used by key-based and publication-based verification
* policies.
*/
public class CalendarHashChainExistenceRule extends BaseRule {
public VerificationResultCode verifySignature(VerificationContext context) throws KSIException {
CalendarHashChain calendarHashChain = context.getSignature().getCalendarHashChain();
if (calendarHashChain == null) {
return VerificationResultCode.NA;
}
return VerificationResultCode.OK;
}
public VerificationErrorCode getErrorCode() {
return VerificationErrorCode.GEN_02;
}
}