diff options
Diffstat (limited to 'libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/CMSAuthenticatedDataGenerator.java')
| -rw-r--r-- | libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/CMSAuthenticatedDataGenerator.java | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/CMSAuthenticatedDataGenerator.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/CMSAuthenticatedDataGenerator.java deleted file mode 100644 index ca1f95a56..000000000 --- a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/CMSAuthenticatedDataGenerator.java +++ /dev/null @@ -1,181 +0,0 @@ -package org.spongycastle.cms; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.OutputStream; -import java.util.Collections; -import java.util.HashMap; -import java.util.Iterator; -import java.util.Map; - -import org.spongycastle.asn1.ASN1EncodableVector; -import org.spongycastle.asn1.ASN1Encoding; -import org.spongycastle.asn1.ASN1OctetString; -import org.spongycastle.asn1.ASN1Set; -import org.spongycastle.asn1.BEROctetString; -import org.spongycastle.asn1.BERSet; -import org.spongycastle.asn1.DEROctetString; -import org.spongycastle.asn1.DERSet; -import org.spongycastle.asn1.cms.AuthenticatedData; -import org.spongycastle.asn1.cms.CMSObjectIdentifiers; -import org.spongycastle.asn1.cms.ContentInfo; -import org.spongycastle.asn1.x509.AlgorithmIdentifier; -import org.spongycastle.operator.DigestCalculator; -import org.spongycastle.operator.DigestCalculatorProvider; -import org.spongycastle.operator.MacCalculator; -import org.spongycastle.operator.OperatorCreationException; -import org.spongycastle.util.io.TeeOutputStream; - -/** - * General class for generating a CMS authenticated-data message. - * - * A simple example of usage. - * - * <pre> - * CMSAuthenticatedDataGenerator fact = new CMSAuthenticatedDataGenerator(); - * - * adGen.addRecipientInfoGenerator(new JceKeyTransRecipientInfoGenerator(recipientCert).setProvider("SC")); - * - * CMSAuthenticatedData data = fact.generate(new CMSProcessableByteArray(data), - * new JceCMSMacCalculatorBuilder(CMSAlgorithm.DES_EDE3_CBC).setProvider(BC).build())); - * </pre> - */ -public class CMSAuthenticatedDataGenerator - extends CMSAuthenticatedGenerator -{ - /** - * base constructor - */ - public CMSAuthenticatedDataGenerator() - { - } - - /** - * Generate an authenticated data object from the passed in typedData and MacCalculator. - * - * @param typedData the data to have a MAC attached. - * @param macCalculator the calculator of the MAC to be attached. - * @return the resulting CMSAuthenticatedData object. - * @throws CMSException on failure in encoding data or processing recipients. - */ - public CMSAuthenticatedData generate(CMSTypedData typedData, MacCalculator macCalculator) - throws CMSException - { - return generate(typedData, macCalculator, null); - } - - /** - * Generate an authenticated data object from the passed in typedData and MacCalculator. - * - * @param typedData the data to have a MAC attached. - * @param macCalculator the calculator of the MAC to be attached. - * @param digestCalculator calculator for computing digest of the encapsulated data. - * @return the resulting CMSAuthenticatedData object. - * @throws CMSException on failure in encoding data or processing recipients. - */ - public CMSAuthenticatedData generate(CMSTypedData typedData, MacCalculator macCalculator, final DigestCalculator digestCalculator) - throws CMSException - { - ASN1EncodableVector recipientInfos = new ASN1EncodableVector(); - ASN1OctetString encContent; - ASN1OctetString macResult; - - for (Iterator it = recipientInfoGenerators.iterator(); it.hasNext();) - { - RecipientInfoGenerator recipient = (RecipientInfoGenerator)it.next(); - - recipientInfos.add(recipient.generate(macCalculator.getKey())); - } - - AuthenticatedData authData; - - if (digestCalculator != null) - { - try - { - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - OutputStream out = new TeeOutputStream(digestCalculator.getOutputStream(), bOut); - - typedData.write(out); - - out.close(); - - encContent = new BEROctetString(bOut.toByteArray()); - } - catch (IOException e) - { - throw new CMSException("unable to perform digest calculation: " + e.getMessage(), e); - } - - Map parameters = getBaseParameters(typedData.getContentType(), digestCalculator.getAlgorithmIdentifier(), digestCalculator.getDigest()); - - if (authGen == null) - { - authGen = new DefaultAuthenticatedAttributeTableGenerator(); - } - ASN1Set authed = new DERSet(authGen.getAttributes(Collections.unmodifiableMap(parameters)).toASN1EncodableVector()); - - try - { - OutputStream mOut = macCalculator.getOutputStream(); - - mOut.write(authed.getEncoded(ASN1Encoding.DER)); - - mOut.close(); - - macResult = new DEROctetString(macCalculator.getMac()); - } - catch (IOException e) - { - throw new CMSException("exception decoding algorithm parameters.", e); - } - ASN1Set unauthed = (unauthGen != null) ? new BERSet(unauthGen.getAttributes(Collections.unmodifiableMap(parameters)).toASN1EncodableVector()) : null; - - ContentInfo eci = new ContentInfo( - CMSObjectIdentifiers.data, - encContent); - - authData = new AuthenticatedData(originatorInfo, new DERSet(recipientInfos), macCalculator.getAlgorithmIdentifier(), digestCalculator.getAlgorithmIdentifier(), eci, authed, macResult, unauthed); - } - else - { - try - { - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - OutputStream mOut = new TeeOutputStream(bOut, macCalculator.getOutputStream()); - - typedData.write(mOut); - - mOut.close(); - - encContent = new BEROctetString(bOut.toByteArray()); - - macResult = new DEROctetString(macCalculator.getMac()); - } - catch (IOException e) - { - throw new CMSException("exception decoding algorithm parameters.", e); - } - - ASN1Set unauthed = (unauthGen != null) ? new BERSet(unauthGen.getAttributes(new HashMap()).toASN1EncodableVector()) : null; - - ContentInfo eci = new ContentInfo( - CMSObjectIdentifiers.data, - encContent); - - authData = new AuthenticatedData(originatorInfo, new DERSet(recipientInfos), macCalculator.getAlgorithmIdentifier(), null, eci, null, macResult, unauthed); - } - - ContentInfo contentInfo = new ContentInfo( - CMSObjectIdentifiers.authenticatedData, authData); - - return new CMSAuthenticatedData(contentInfo, new DigestCalculatorProvider() - { - public DigestCalculator get(AlgorithmIdentifier digestAlgorithmIdentifier) - throws OperatorCreationException - { - return digestCalculator; - } - }); - } -}
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