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Diffstat (limited to 'libraries/spongycastle/pkix/src/main/java/org/spongycastle/tsp/cms/TimeStampDataUtil.java')
-rw-r--r--libraries/spongycastle/pkix/src/main/java/org/spongycastle/tsp/cms/TimeStampDataUtil.java256
1 files changed, 0 insertions, 256 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/tsp/cms/TimeStampDataUtil.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/tsp/cms/TimeStampDataUtil.java
deleted file mode 100644
index fd1bcc8dc..000000000
--- a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/tsp/cms/TimeStampDataUtil.java
+++ /dev/null
@@ -1,256 +0,0 @@
-package org.spongycastle.tsp.cms;
-
-import java.io.IOException;
-import java.io.OutputStream;
-
-import org.spongycastle.asn1.ASN1Encoding;
-import org.spongycastle.asn1.ASN1ObjectIdentifier;
-import org.spongycastle.asn1.cms.AttributeTable;
-import org.spongycastle.asn1.cms.ContentInfo;
-import org.spongycastle.asn1.cms.Evidence;
-import org.spongycastle.asn1.cms.TimeStampAndCRL;
-import org.spongycastle.asn1.cms.TimeStampedData;
-import org.spongycastle.asn1.cms.TimeStampedDataParser;
-import org.spongycastle.asn1.x509.AlgorithmIdentifier;
-import org.spongycastle.cms.CMSException;
-import org.spongycastle.operator.DigestCalculator;
-import org.spongycastle.operator.DigestCalculatorProvider;
-import org.spongycastle.operator.OperatorCreationException;
-import org.spongycastle.tsp.TSPException;
-import org.spongycastle.tsp.TimeStampToken;
-import org.spongycastle.tsp.TimeStampTokenInfo;
-import org.spongycastle.util.Arrays;
-
-class TimeStampDataUtil
-{
- private final TimeStampAndCRL[] timeStamps;
-
- private final MetaDataUtil metaDataUtil;
-
- TimeStampDataUtil(TimeStampedData timeStampedData)
- {
- this.metaDataUtil = new MetaDataUtil(timeStampedData.getMetaData());
-
- Evidence evidence = timeStampedData.getTemporalEvidence();
- this.timeStamps = evidence.getTstEvidence().toTimeStampAndCRLArray();
- }
-
- TimeStampDataUtil(TimeStampedDataParser timeStampedData)
- throws IOException
- {
- this.metaDataUtil = new MetaDataUtil(timeStampedData.getMetaData());
-
- Evidence evidence = timeStampedData.getTemporalEvidence();
- this.timeStamps = evidence.getTstEvidence().toTimeStampAndCRLArray();
- }
-
- TimeStampToken getTimeStampToken(TimeStampAndCRL timeStampAndCRL)
- throws CMSException
- {
- ContentInfo timeStampToken = timeStampAndCRL.getTimeStampToken();
-
- try
- {
- TimeStampToken token = new TimeStampToken(timeStampToken);
- return token;
- }
- catch (IOException e)
- {
- throw new CMSException("unable to parse token data: " + e.getMessage(), e);
- }
- catch (TSPException e)
- {
- if (e.getCause() instanceof CMSException)
- {
- throw (CMSException)e.getCause();
- }
-
- throw new CMSException("token data invalid: " + e.getMessage(), e);
- }
- catch (IllegalArgumentException e)
- {
- throw new CMSException("token data invalid: " + e.getMessage(), e);
- }
- }
-
- void initialiseMessageImprintDigestCalculator(DigestCalculator calculator)
- throws CMSException
- {
- metaDataUtil.initialiseMessageImprintDigestCalculator(calculator);
- }
-
- DigestCalculator getMessageImprintDigestCalculator(DigestCalculatorProvider calculatorProvider)
- throws OperatorCreationException
- {
- TimeStampToken token;
-
- try
- {
- token = this.getTimeStampToken(timeStamps[0]);
-
- TimeStampTokenInfo info = token.getTimeStampInfo();
- ASN1ObjectIdentifier algOID = info.getMessageImprintAlgOID();
-
- DigestCalculator calc = calculatorProvider.get(new AlgorithmIdentifier(algOID));
-
- initialiseMessageImprintDigestCalculator(calc);
-
- return calc;
- }
- catch (CMSException e)
- {
- throw new OperatorCreationException("unable to extract algorithm ID: " + e.getMessage(), e);
- }
- }
-
- TimeStampToken[] getTimeStampTokens()
- throws CMSException
- {
- TimeStampToken[] tokens = new TimeStampToken[timeStamps.length];
- for (int i = 0; i < timeStamps.length; i++)
- {
- tokens[i] = this.getTimeStampToken(timeStamps[i]);
- }
-
- return tokens;
- }
-
- TimeStampAndCRL[] getTimeStamps()
- {
- return timeStamps;
- }
-
- byte[] calculateNextHash(DigestCalculator calculator)
- throws CMSException
- {
- TimeStampAndCRL tspToken = timeStamps[timeStamps.length - 1];
-
- OutputStream out = calculator.getOutputStream();
-
- try
- {
- out.write(tspToken.getEncoded(ASN1Encoding.DER));
-
- out.close();
-
- return calculator.getDigest();
- }
- catch (IOException e)
- {
- throw new CMSException("exception calculating hash: " + e.getMessage(), e);
- }
- }
-
- /**
- * Validate the digests present in the TimeStampTokens contained in the CMSTimeStampedData.
- */
- void validate(DigestCalculatorProvider calculatorProvider, byte[] dataDigest)
- throws ImprintDigestInvalidException, CMSException
- {
- byte[] currentDigest = dataDigest;
-
- for (int i = 0; i < timeStamps.length; i++)
- {
- try
- {
- TimeStampToken token = this.getTimeStampToken(timeStamps[i]);
- if (i > 0)
- {
- TimeStampTokenInfo info = token.getTimeStampInfo();
- DigestCalculator calculator = calculatorProvider.get(info.getHashAlgorithm());
-
- calculator.getOutputStream().write(timeStamps[i - 1].getEncoded(ASN1Encoding.DER));
-
- currentDigest = calculator.getDigest();
- }
-
- this.compareDigest(token, currentDigest);
- }
- catch (IOException e)
- {
- throw new CMSException("exception calculating hash: " + e.getMessage(), e);
- }
- catch (OperatorCreationException e)
- {
- throw new CMSException("cannot create digest: " + e.getMessage(), e);
- }
- }
- }
-
- void validate(DigestCalculatorProvider calculatorProvider, byte[] dataDigest, TimeStampToken timeStampToken)
- throws ImprintDigestInvalidException, CMSException
- {
- byte[] currentDigest = dataDigest;
- byte[] encToken;
-
- try
- {
- encToken = timeStampToken.getEncoded();
- }
- catch (IOException e)
- {
- throw new CMSException("exception encoding timeStampToken: " + e.getMessage(), e);
- }
-
- for (int i = 0; i < timeStamps.length; i++)
- {
- try
- {
- TimeStampToken token = this.getTimeStampToken(timeStamps[i]);
- if (i > 0)
- {
- TimeStampTokenInfo info = token.getTimeStampInfo();
- DigestCalculator calculator = calculatorProvider.get(info.getHashAlgorithm());
-
- calculator.getOutputStream().write(timeStamps[i - 1].getEncoded(ASN1Encoding.DER));
-
- currentDigest = calculator.getDigest();
- }
-
- this.compareDigest(token, currentDigest);
-
- if (Arrays.areEqual(token.getEncoded(), encToken))
- {
- return;
- }
- }
- catch (IOException e)
- {
- throw new CMSException("exception calculating hash: " + e.getMessage(), e);
- }
- catch (OperatorCreationException e)
- {
- throw new CMSException("cannot create digest: " + e.getMessage(), e);
- }
- }
-
- throw new ImprintDigestInvalidException("passed in token not associated with timestamps present", timeStampToken);
- }
-
- private void compareDigest(TimeStampToken timeStampToken, byte[] digest)
- throws ImprintDigestInvalidException
- {
- TimeStampTokenInfo info = timeStampToken.getTimeStampInfo();
- byte[] tsrMessageDigest = info.getMessageImprintDigest();
-
- if (!Arrays.areEqual(digest, tsrMessageDigest))
- {
- throw new ImprintDigestInvalidException("hash calculated is different from MessageImprintDigest found in TimeStampToken", timeStampToken);
- }
- }
-
- String getFileName()
- {
- return metaDataUtil.getFileName();
- }
-
- String getMediaType()
- {
- return metaDataUtil.getMediaType();
- }
-
- AttributeTable getOtherMetaData()
- {
- return new AttributeTable(metaDataUtil.getOtherMetaData());
- }
-}