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path: root/pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java
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Diffstat (limited to 'pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java')
-rw-r--r--pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java291
1 files changed, 0 insertions, 291 deletions
diff --git a/pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java b/pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java
deleted file mode 100644
index f264729c..00000000
--- a/pkix/src/main/java/org/bouncycastle/cms/SignerInfoGenerator.java
+++ /dev/null
@@ -1,291 +0,0 @@
-package org.bouncycastle.cms;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.bouncycastle.asn1.ASN1Encoding;
-import org.bouncycastle.asn1.ASN1ObjectIdentifier;
-import org.bouncycastle.asn1.ASN1Set;
-import org.bouncycastle.asn1.DEROctetString;
-import org.bouncycastle.asn1.DERSet;
-import org.bouncycastle.asn1.cms.AttributeTable;
-import org.bouncycastle.asn1.cms.SignerIdentifier;
-import org.bouncycastle.asn1.cms.SignerInfo;
-import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
-import org.bouncycastle.cert.X509CertificateHolder;
-import org.bouncycastle.operator.ContentSigner;
-import org.bouncycastle.operator.DefaultDigestAlgorithmIdentifierFinder;
-import org.bouncycastle.operator.DigestAlgorithmIdentifierFinder;
-import org.bouncycastle.operator.DigestCalculator;
-import org.bouncycastle.operator.DigestCalculatorProvider;
-import org.bouncycastle.operator.OperatorCreationException;
-import org.bouncycastle.util.Arrays;
-import org.bouncycastle.util.io.TeeOutputStream;
-
-public class SignerInfoGenerator
-{
- private final SignerIdentifier signerIdentifier;
- private final CMSAttributeTableGenerator sAttrGen;
- private final CMSAttributeTableGenerator unsAttrGen;
- private final ContentSigner signer;
- private final DigestCalculator digester;
- private final DigestAlgorithmIdentifierFinder digAlgFinder = new DefaultDigestAlgorithmIdentifierFinder();
- private final CMSSignatureEncryptionAlgorithmFinder sigEncAlgFinder;
-
- private byte[] calculatedDigest = null;
- private X509CertificateHolder certHolder;
-
- SignerInfoGenerator(
- SignerIdentifier signerIdentifier,
- ContentSigner signer,
- DigestCalculatorProvider digesterProvider,
- CMSSignatureEncryptionAlgorithmFinder sigEncAlgFinder)
- throws OperatorCreationException
- {
- this(signerIdentifier, signer, digesterProvider, sigEncAlgFinder, false);
- }
-
- SignerInfoGenerator(
- SignerIdentifier signerIdentifier,
- ContentSigner signer,
- DigestCalculatorProvider digesterProvider,
- CMSSignatureEncryptionAlgorithmFinder sigEncAlgFinder,
- boolean isDirectSignature)
- throws OperatorCreationException
- {
- this.signerIdentifier = signerIdentifier;
- this.signer = signer;
-
- if (digesterProvider != null)
- {
- this.digester = digesterProvider.get(digAlgFinder.find(signer.getAlgorithmIdentifier()));
- }
- else
- {
- this.digester = null;
- }
-
- if (isDirectSignature)
- {
- this.sAttrGen = null;
- this.unsAttrGen = null;
- }
- else
- {
- this.sAttrGen = new DefaultSignedAttributeTableGenerator();
- this.unsAttrGen = null;
- }
-
- this.sigEncAlgFinder = sigEncAlgFinder;
- }
-
- public SignerInfoGenerator(
- SignerInfoGenerator original,
- CMSAttributeTableGenerator sAttrGen,
- CMSAttributeTableGenerator unsAttrGen)
- {
- this.signerIdentifier = original.signerIdentifier;
- this.signer = original.signer;
- this.digester = original.digester;
- this.sigEncAlgFinder = original.sigEncAlgFinder;
- this.sAttrGen = sAttrGen;
- this.unsAttrGen = unsAttrGen;
- }
-
- SignerInfoGenerator(
- SignerIdentifier signerIdentifier,
- ContentSigner signer,
- DigestCalculatorProvider digesterProvider,
- CMSSignatureEncryptionAlgorithmFinder sigEncAlgFinder,
- CMSAttributeTableGenerator sAttrGen,
- CMSAttributeTableGenerator unsAttrGen)
- throws OperatorCreationException
- {
- this.signerIdentifier = signerIdentifier;
- this.signer = signer;
-
- if (digesterProvider != null)
- {
- this.digester = digesterProvider.get(digAlgFinder.find(signer.getAlgorithmIdentifier()));
- }
- else
- {
- this.digester = null;
- }
-
- this.sAttrGen = sAttrGen;
- this.unsAttrGen = unsAttrGen;
- this.sigEncAlgFinder = sigEncAlgFinder;
- }
-
- public SignerIdentifier getSID()
- {
- return signerIdentifier;
- }
-
- public int getGeneratedVersion()
- {
- return signerIdentifier.isTagged() ? 3 : 1;
- }
-
- public boolean hasAssociatedCertificate()
- {
- return certHolder != null;
- }
-
- public X509CertificateHolder getAssociatedCertificate()
- {
- return certHolder;
- }
-
- public AlgorithmIdentifier getDigestAlgorithm()
- {
- if (digester != null)
- {
- return digester.getAlgorithmIdentifier();
- }
-
- return digAlgFinder.find(signer.getAlgorithmIdentifier());
- }
-
- public OutputStream getCalculatingOutputStream()
- {
- if (digester != null)
- {
- if (sAttrGen == null)
- {
- return new TeeOutputStream(digester.getOutputStream(), signer.getOutputStream());
- }
- return digester.getOutputStream();
- }
- else
- {
- return signer.getOutputStream();
- }
- }
-
- public SignerInfo generate(ASN1ObjectIdentifier contentType)
- throws CMSException
- {
- try
- {
- /* RFC 3852 5.4
- * The result of the message digest calculation process depends on
- * whether the signedAttrs field is present. When the field is absent,
- * the result is just the message digest of the content as described
- *
- * above. When the field is present, however, the result is the message
- * digest of the complete DER encoding of the SignedAttrs value
- * contained in the signedAttrs field.
- */
- ASN1Set signedAttr = null;
-
- AlgorithmIdentifier digestAlg = null;
-
- if (sAttrGen != null)
- {
- digestAlg = digester.getAlgorithmIdentifier();
- calculatedDigest = digester.getDigest();
- Map parameters = getBaseParameters(contentType, digester.getAlgorithmIdentifier(), calculatedDigest);
- AttributeTable signed = sAttrGen.getAttributes(Collections.unmodifiableMap(parameters));
-
- signedAttr = getAttributeSet(signed);
-
- // sig must be composed from the DER encoding.
- OutputStream sOut = signer.getOutputStream();
-
- sOut.write(signedAttr.getEncoded(ASN1Encoding.DER));
-
- sOut.close();
- }
- else
- {
- if (digester != null)
- {
- digestAlg = digester.getAlgorithmIdentifier();
- calculatedDigest = digester.getDigest();
- }
- else
- {
- digestAlg = digAlgFinder.find(signer.getAlgorithmIdentifier());
- calculatedDigest = null;
- }
- }
-
- byte[] sigBytes = signer.getSignature();
-
- ASN1Set unsignedAttr = null;
- if (unsAttrGen != null)
- {
- Map parameters = getBaseParameters(contentType, digestAlg, calculatedDigest);
- parameters.put(CMSAttributeTableGenerator.SIGNATURE, Arrays.clone(sigBytes));
-
- AttributeTable unsigned = unsAttrGen.getAttributes(Collections.unmodifiableMap(parameters));
-
- unsignedAttr = getAttributeSet(unsigned);
- }
-
- AlgorithmIdentifier digestEncryptionAlgorithm = sigEncAlgFinder.findEncryptionAlgorithm(signer.getAlgorithmIdentifier());
-
- return new SignerInfo(signerIdentifier, digestAlg,
- signedAttr, digestEncryptionAlgorithm, new DEROctetString(sigBytes), unsignedAttr);
- }
- catch (IOException e)
- {
- throw new CMSException("encoding error.", e);
- }
- }
-
- void setAssociatedCertificate(X509CertificateHolder certHolder)
- {
- this.certHolder = certHolder;
- }
-
- private ASN1Set getAttributeSet(
- AttributeTable attr)
- {
- if (attr != null)
- {
- return new DERSet(attr.toASN1EncodableVector());
- }
-
- return null;
- }
-
- private Map getBaseParameters(ASN1ObjectIdentifier contentType, AlgorithmIdentifier digAlgId, byte[] hash)
- {
- Map param = new HashMap();
-
- if (contentType != null)
- {
- param.put(CMSAttributeTableGenerator.CONTENT_TYPE, contentType);
- }
-
- param.put(CMSAttributeTableGenerator.DIGEST_ALGORITHM_IDENTIFIER, digAlgId);
- param.put(CMSAttributeTableGenerator.DIGEST, Arrays.clone(hash));
- return param;
- }
-
- public byte[] getCalculatedDigest()
- {
- if (calculatedDigest != null)
- {
- return Arrays.clone(calculatedDigest);
- }
-
- return null;
- }
-
- public CMSAttributeTableGenerator getSignedAttributeTableGenerator()
- {
- return sAttrGen;
- }
-
- public CMSAttributeTableGenerator getUnsignedAttributeTableGenerator()
- {
- return unsAttrGen;
- }
-}
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