com.guardtime.ksi.unisignature.verifier.rules.AggregationHashChainAlgorithmDeprecatedRule 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.AggregationHashChain;
import com.guardtime.ksi.unisignature.verifier.VerificationContext;
import com.guardtime.ksi.unisignature.verifier.VerificationErrorCode;
import com.guardtime.ksi.unisignature.verifier.VerificationResultCode;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Verifies if the aggregation hash chain uses a hash algorithm that was deprecated at the aggregation time.
*/
public class AggregationHashChainAlgorithmDeprecatedRule extends BaseRule {
private static final Logger logger = LoggerFactory.getLogger(AggregationHashChainAlgorithmDeprecatedRule.class);
public VerificationResultCode verifySignature(VerificationContext context) throws KSIException {
AggregationHashChain[] chains = context.getAggregationHashChains();
for (AggregationHashChain chain : chains) {
if (chain.getAggregationAlgorithm().isDeprecated(chain.getAggregationTime())) {
logger.info("Aggregation hash chain aggregation algorithm {} is deprecated at {}",
chain.getAggregationAlgorithm().getName(), chain.getAggregationTime());
return VerificationResultCode.FAIL;
}
}
return VerificationResultCode.OK;
}
public VerificationErrorCode getErrorCode() {
return VerificationErrorCode.INT_15;
}
}