protected CmsContentInfoParser(Stream data)
{
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
//IL_003b: Expected O, but got Unknown
//IL_0048: Expected O, but got Unknown
if (data == null)
{
throw new ArgumentNullException("data");
}
this.data = data;
try
{
Asn1StreamParser asn1StreamParser = new Asn1StreamParser(data);
contentInfo = new ContentInfoParser((Asn1SequenceParser)asn1StreamParser.ReadObject());
}
catch (IOException val)
{
IOException e = val;
throw new CmsException("IOException reading content.", (global::System.Exception)(object) e);
}
catch (InvalidCastException val2)
{
InvalidCastException e2 = val2;
throw new CmsException("Unexpected object reading content.", (global::System.Exception)(object) e2);
}
}
public CmsAuthenticatedDataParser(
Stream envelopedData)
: base(envelopedData)
{
this.authAttrNotRead = true;
this.authData = new AuthenticatedDataParser(
(Asn1SequenceParser)contentInfo.GetContent(Asn1Tags.Sequence));
// TODO Validate version?
//DerInteger version = this.authData.getVersion();
//
// read the recipients
//
Asn1Set recipientInfos = Asn1Set.GetInstance(authData.GetRecipientInfos().ToAsn1Object());
this.macAlg = authData.GetMacAlgorithm();
//
// read the authenticated content info
//
ContentInfoParser data = authData.GetEnapsulatedContentInfo();
CmsReadable readable = new CmsProcessableInputStream(
((Asn1OctetStringParser)data.GetContent(Asn1Tags.OctetString)).GetOctetStream());
CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(
this.macAlg, readable);
//
// build the RecipientInformationStore
//
this._recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(
recipientInfos, secureReadable);
}
protected CmsContentInfoParser(
Stream data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
this.data = data;
try
{
Asn1StreamParser inStream = new Asn1StreamParser(data);
this.contentInfo = new ContentInfoParser((Asn1SequenceParser)inStream.ReadObject());
}
catch (IOException e)
{
throw new CmsException("IOException reading content.", e);
}
catch (InvalidCastException e)
{
throw new CmsException("Unexpected object reading content.", e);
}
}
public CmsAuthenticatedDataParser(Stream envelopedData) : base(envelopedData)
{
this.authAttrNotRead = true;
this.authData = new AuthenticatedDataParser((Asn1SequenceParser)this.contentInfo.GetContent(16));
Asn1Set instance = Asn1Set.GetInstance(this.authData.GetRecipientInfos().ToAsn1Object());
this.macAlg = this.authData.GetMacAlgorithm();
ContentInfoParser enapsulatedContentInfo = this.authData.GetEnapsulatedContentInfo();
CmsReadable readable = new CmsProcessableInputStream(((Asn1OctetStringParser)enapsulatedContentInfo.GetContent(4)).GetOctetStream());
CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable(this.macAlg, readable);
this._recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore(instance, secureReadable);
}
public CmsSignedDataParser(CmsTypedStream signedContent, Stream sigData)
: base(sigData)
{
//IL_0130: Expected O, but got Unknown
try
{
_signedContent = signedContent;
_signedData = SignedDataParser.GetInstance(contentInfo.GetContent(16));
_digests = Platform.CreateHashtable();
_digestOids = new HashSet();
Asn1SetParser digestAlgorithms = _signedData.GetDigestAlgorithms();
IAsn1Convertible asn1Convertible;
while ((asn1Convertible = digestAlgorithms.ReadObject()) != null)
{
AlgorithmIdentifier instance = AlgorithmIdentifier.GetInstance(asn1Convertible.ToAsn1Object());
try
{
string id = instance.Algorithm.Id;
string digestAlgName = Helper.GetDigestAlgName(id);
if (!_digests.Contains((object)digestAlgName))
{
_digests.set_Item((object)digestAlgName, (object)Helper.GetDigestInstance(digestAlgName));
_digestOids.Add(id);
}
}
catch (SecurityUtilityException)
{
}
}
ContentInfoParser encapContentInfo = _signedData.GetEncapContentInfo();
Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)encapContentInfo.GetContent(4);
if (asn1OctetStringParser != null)
{
CmsTypedStream cmsTypedStream = new CmsTypedStream(encapContentInfo.ContentType.Id, asn1OctetStringParser.GetOctetStream());
if (_signedContent == null)
{
_signedContent = cmsTypedStream;
}
else
{
cmsTypedStream.Drain();
}
}
_signedContentType = ((_signedContent == null) ? encapContentInfo.ContentType : new DerObjectIdentifier(_signedContent.ContentType));
}
catch (IOException val)
{
IOException val2 = val;
throw new CmsException("io exception: " + ((global::System.Exception)(object) val2).get_Message(), (global::System.Exception)(object) val2);
}
}
public CmsTypedStream GetContent()
{
try
{
CompressedDataParser compressedDataParser = new CompressedDataParser((Asn1SequenceParser)contentInfo.GetContent(16));
ContentInfoParser encapContentInfo = compressedDataParser.GetEncapContentInfo();
Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)encapContentInfo.GetContent(4);
return(new CmsTypedStream(encapContentInfo.ContentType.ToString(), new ZInputStream(asn1OctetStringParser.GetOctetStream())));
}
catch (IOException e)
{
throw new CmsException("IOException reading compressed content.", e);
}
}
public CmsSignedDataParser(CmsTypedStream signedContent, Stream sigData) : base(sigData)
{
try
{
this._signedContent = signedContent;
this._signedData = SignedDataParser.GetInstance(this.contentInfo.GetContent(16));
this._digests = Platform.CreateHashtable();
this._digestOids = new HashSet();
Asn1SetParser digestAlgorithms = this._signedData.GetDigestAlgorithms();
IAsn1Convertible asn1Convertible;
while ((asn1Convertible = digestAlgorithms.ReadObject()) != null)
{
AlgorithmIdentifier instance = AlgorithmIdentifier.GetInstance(asn1Convertible.ToAsn1Object());
try
{
string id = instance.ObjectID.Id;
string digestAlgName = CmsSignedDataParser.Helper.GetDigestAlgName(id);
if (!this._digests.Contains(digestAlgName))
{
this._digests[digestAlgName] = CmsSignedDataParser.Helper.GetDigestInstance(digestAlgName);
this._digestOids.Add(id);
}
}
catch (SecurityUtilityException)
{
}
}
ContentInfoParser encapContentInfo = this._signedData.GetEncapContentInfo();
Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)encapContentInfo.GetContent(4);
if (asn1OctetStringParser != null)
{
CmsTypedStream cmsTypedStream = new CmsTypedStream(encapContentInfo.ContentType.Id, asn1OctetStringParser.GetOctetStream());
if (this._signedContent == null)
{
this._signedContent = cmsTypedStream;
}
else
{
cmsTypedStream.Drain();
}
}
this._signedContentType = ((this._signedContent == null) ? encapContentInfo.ContentType : new DerObjectIdentifier(this._signedContent.ContentType));
}
catch (IOException ex)
{
throw new CmsException("io exception: " + ex.Message, ex);
}
}
public CmsTypedStream GetContent()
{
//IL_004c: Expected O, but got Unknown
try
{
CompressedDataParser compressedDataParser = new CompressedDataParser((Asn1SequenceParser)contentInfo.GetContent(16));
ContentInfoParser encapContentInfo = compressedDataParser.GetEncapContentInfo();
Asn1OctetStringParser asn1OctetStringParser = (Asn1OctetStringParser)encapContentInfo.GetContent(4);
return(new CmsTypedStream(encapContentInfo.ContentType.ToString(), (Stream)(object)new ZInputStream(asn1OctetStringParser.GetOctetStream())));
}
catch (IOException val)
{
IOException e = val;
throw new CmsException("IOException reading compressed content.", (global::System.Exception)(object) e);
}
}
public CmsTypedStream GetContent()
{
try
{
CompressedDataParser comData = new CompressedDataParser((Asn1SequenceParser)this.contentInfo.GetContent(Asn1Tags.Sequence));
ContentInfoParser content = comData.GetEncapContentInfo();
Asn1OctetStringParser bytes = (Asn1OctetStringParser)content.GetContent(Asn1Tags.OctetString);
return(new CmsTypedStream(content.ContentType.ToString(), new ZInputStream(bytes.GetOctetStream())));
}
catch (IOException e)
{
throw new CmsException("IOException reading compressed content.", e);
}
}
private void ParseEnveloped(
byte[] data)
{
Asn1StreamParser aIn = new Asn1StreamParser(data);
ContentInfoParser cP = new ContentInfoParser((Asn1SequenceParser)aIn.ReadObject());
EnvelopedDataParser eP = new EnvelopedDataParser((Asn1SequenceParser)cP.GetContent(Asn1Tags.Sequence));
eP.GetRecipientInfos().ToAsn1Object(); // Must drain the parser!
EncryptedContentInfoParser ecP = eP.GetEncryptedContentInfo();
Asn1OctetStringParser content = (Asn1OctetStringParser)ecP.GetEncryptedContent(Asn1Tags.OctetString);
Streams.Drain(content.GetOctetStream());
}
public CmsAuthenticatedDataParser(
Stream envelopedData)
: base(envelopedData)
{
this.authAttrNotRead = true;
this.authData = new AuthenticatedDataParser(
(Asn1SequenceParser)contentInfo.GetContent(Asn1Tags.Sequence));
// TODO Validate version?
//DerInteger version = this.authData.getVersion();
//
// load the RecipientInfoStore
//
Asn1SetParser s = authData.GetRecipientInfos();
IList baseInfos = new ArrayList();
IAsn1Convertible entry;
while ((entry = s.ReadObject()) != null)
{
baseInfos.Add(RecipientInfo.GetInstance(entry.ToAsn1Object()));
}
this.macAlg = authData.GetMacAlgorithm();
//
// read the encrypted content info
//
ContentInfoParser data = authData.GetEnapsulatedContentInfo();
//
// prime the recipients
//
Stream contentStream = ((Asn1OctetStringParser)data.GetContent(Asn1Tags.OctetString)).GetOctetStream();
IList infos = CmsEnvelopedHelper.ReadRecipientInfos(
baseInfos, contentStream, null, macAlg, null);
_recipientInfoStore = new RecipientInformationStore(infos);
}
private ITestResult EnvelopedTest()
{
try
{
// Key trans
ContentInfo info = ContentInfo.GetInstance(
Asn1Object.FromByteArray(envDataKeyTrns));
EnvelopedData envData = EnvelopedData.GetInstance(info.Content);
Asn1Set s = envData.RecipientInfos;
if (s.Count != 1)
{
return(new SimpleTestResult(false, Name + ": CMS KeyTrans enveloped, wrong number of recipients"));
}
RecipientInfo recip = RecipientInfo.GetInstance(s[0]);
if (recip.Info is KeyTransRecipientInfo)
{
KeyTransRecipientInfo inf = KeyTransRecipientInfo.GetInstance(recip.Info);
inf = new KeyTransRecipientInfo(inf.RecipientIdentifier, inf.KeyEncryptionAlgorithm, inf.EncryptedKey);
s = new DerSet(new RecipientInfo(inf));
}
else
{
return(new SimpleTestResult(false, Name + ": CMS KeyTrans enveloped, wrong recipient type"));
}
envData = new EnvelopedData(envData.OriginatorInfo, s, envData.EncryptedContentInfo, envData.UnprotectedAttrs);
info = new ContentInfo(CmsObjectIdentifiers.EnvelopedData, envData);
if (!Arrays.AreEqual(info.GetEncoded(), envDataKeyTrns))
{
return(new SimpleTestResult(false, Name + ": CMS KeyTrans enveloped failed to re-encode"));
}
// KEK
info = ContentInfo.GetInstance(
Asn1Object.FromByteArray(envDataKEK));
envData = EnvelopedData.GetInstance(info.Content);
s = envData.RecipientInfos;
if (s.Count != 1)
{
return(new SimpleTestResult(false, Name + ": CMS KEK enveloped, wrong number of recipients"));
}
recip = RecipientInfo.GetInstance(s[0]);
if (recip.Info is KekRecipientInfo)
{
KekRecipientInfo inf = KekRecipientInfo.GetInstance(recip.Info);
inf = new KekRecipientInfo(inf.KekID, inf.KeyEncryptionAlgorithm, inf.EncryptedKey);
s = new DerSet(new RecipientInfo(inf));
}
else
{
return(new SimpleTestResult(false, Name + ": CMS KEK enveloped, wrong recipient type"));
}
envData = new EnvelopedData(envData.OriginatorInfo, s, envData.EncryptedContentInfo, envData.UnprotectedAttrs);
info = new ContentInfo(CmsObjectIdentifiers.EnvelopedData, envData);
if (!Arrays.AreEqual(info.GetEncoded(), envDataKEK))
{
return(new SimpleTestResult(false, Name + ": CMS KEK enveloped failed to re-encode"));
}
// Nested NDEF problem
Asn1StreamParser asn1In = new Asn1StreamParser(new MemoryStream(envDataNestedNDEF, false));
ContentInfoParser ci = new ContentInfoParser((Asn1SequenceParser)asn1In.ReadObject());
EnvelopedDataParser ed = new EnvelopedDataParser((Asn1SequenceParser)ci
.GetContent(Asn1Tags.Sequence));
Touch(ed.Version);
ed.GetOriginatorInfo();
ed.GetRecipientInfos().ToAsn1Object();
EncryptedContentInfoParser eci = ed.GetEncryptedContentInfo();
Touch(eci.ContentType);
Touch(eci.ContentEncryptionAlgorithm);
Stream dataIn = ((Asn1OctetStringParser)eci.GetEncryptedContent(Asn1Tags.OctetString))
.GetOctetStream();
Streams.Drain(dataIn);
dataIn.Close();
// Test data doesn't have unprotected attrs, bug was being thrown by this call
Asn1SetParser upa = ed.GetUnprotectedAttrs();
if (upa != null)
{
upa.ToAsn1Object();
}
return(new SimpleTestResult(true, Name + ": Okay"));
}
catch (Exception e)
{
return(new SimpleTestResult(false, Name + ": CMS enveloped failed - " + e.ToString(), e));
}
}
public CompressedDataParser(Asn1SequenceParser seq)
{
_version = (DerInteger)seq.ReadObject();
_compressionAlgorithm = AlgorithmIdentifier.GetInstance(seq.ReadObject().ToAsn1Object());
_encapContentInfo = new ContentInfoParser((Asn1SequenceParser)seq.ReadObject());
}
/**
* Replace the certificate and CRL information associated with this
* CMSSignedData object with the new one passed in.
* <p>
* The output stream is returned unclosed.
* </p>
* @param original the signed data stream to be used as a base.
* @param certsAndCrls the new certificates and CRLs to be used.
* @param out the stream to Write the new signed data object to.
* @return out.
* @exception CmsException if there is an error processing the CertStore
*/
public static Stream ReplaceCertificatesAndCrls(
Stream original,
IX509Store x509Certs,
IX509Store x509Crls,
IX509Store x509AttrCerts,
Stream outStr)
{
if (x509AttrCerts != null)
{
throw new NotImplementedException("Currently can't replace attribute certificates");
}
Asn1StreamParser inStr = new Asn1StreamParser(original, CmsUtilities.MaximumMemory);
ContentInfoParser contentInfo = new ContentInfoParser((Asn1SequenceParser)inStr.ReadObject());
SignedDataParser signedData = SignedDataParser.GetInstance(contentInfo.GetContent(Asn1Tags.Sequence));
BerSequenceGenerator sGen = new BerSequenceGenerator(outStr);
sGen.AddObject(CmsObjectIdentifiers.SignedData);
BerSequenceGenerator sigGen = new BerSequenceGenerator(sGen.GetRawOutputStream(), 0, true);
// version number
sigGen.AddObject(signedData.Version);
// digests
WriteToGenerator(sigGen, signedData.GetDigestAlgorithms().ToAsn1Object());
// encap content info
ContentInfoParser encapContentInfo = signedData.GetEncapContentInfo();
BerSequenceGenerator eiGen = new BerSequenceGenerator(sigGen.GetRawOutputStream());
eiGen.AddObject(encapContentInfo.ContentType);
Asn1OctetStringParser octs = (Asn1OctetStringParser)encapContentInfo.GetContent(Asn1Tags.OctetString);
if (octs != null)
{
BerOctetStringGenerator octGen = new BerOctetStringGenerator(eiGen.GetRawOutputStream(), 0, true);
byte[] inBuffer = new byte[4096];
byte[] outBuffer = new byte[4096];
Stream inOctets = octs.GetOctetStream();
Stream outOctets = octGen.GetOctetOutputStream(outBuffer);
int len;
while ((len = inOctets.Read(inBuffer, 0, inBuffer.Length)) > 0)
{
outOctets.Write(inBuffer, 0, len);
}
outOctets.Close();
}
eiGen.Close();
//
// skip existing certs and CRLs
//
Asn1SetParser set = signedData.GetCertificates();
if (set != null)
{
set.ToAsn1Object();
}
set = signedData.GetCrls();
if (set != null)
{
set.ToAsn1Object();
}
//
// replace the certs and crls in the SignedData object
//
Asn1Set certs;
try
{
certs = CmsUtilities.CreateDerSetFromList(
CmsUtilities.GetCertificatesFromStore(x509Certs));
}
catch (X509StoreException e)
{
throw new CmsException("error getting certs from certStore", e);
}
if (certs.Count > 0)
{
WriteToGenerator(sigGen, new DerTaggedObject(false, 0, certs));
}
Asn1Set crls;
try
{
crls = CmsUtilities.CreateDerSetFromList(
CmsUtilities.GetCrlsFromStore(x509Crls));
}
catch (X509StoreException e)
{
throw new CmsException("error getting crls from certStore", e);
}
if (crls.Count > 0)
{
WriteToGenerator(sigGen, new DerTaggedObject(false, 1, crls));
}
WriteToGenerator(sigGen, signedData.GetSignerInfos().ToAsn1Object());
sigGen.Close();
sGen.Close();
return(outStr);
}
/**
* Replace the signerinformation store associated with the passed
* in message contained in the stream original with the new one passed in.
* You would probably only want to do this if you wanted to change the unsigned
* attributes associated with a signer, or perhaps delete one.
* <p>
* The output stream is returned unclosed.
* </p>
* @param original the signed data stream to be used as a base.
* @param signerInformationStore the new signer information store to use.
* @param out the stream to Write the new signed data object to.
* @return out.
*/
public static Stream ReplaceSigners(
Stream original,
SignerInformationStore signerInformationStore,
Stream outStr)
{
Asn1StreamParser inStr = new Asn1StreamParser(original, CmsUtilities.MaximumMemory);
ContentInfoParser contentInfo = new ContentInfoParser((Asn1SequenceParser)inStr.ReadObject());
SignedDataParser signedData = SignedDataParser.GetInstance(contentInfo.GetContent(Asn1Tags.Sequence));
BerSequenceGenerator sGen = new BerSequenceGenerator(outStr);
sGen.AddObject(CmsObjectIdentifiers.SignedData);
BerSequenceGenerator sigGen = new BerSequenceGenerator(sGen.GetRawOutputStream(), 0, true);
// version number
sigGen.AddObject(signedData.Version);
// digests
signedData.GetDigestAlgorithms().ToAsn1Object(); // skip old ones
Asn1EncodableVector digestAlgs = new Asn1EncodableVector();
foreach (SignerInformation signer in signerInformationStore.GetSigners())
{
digestAlgs.Add(FixAlgID(signer.DigestAlgorithmID));
}
WriteToGenerator(sigGen, new DerSet(digestAlgs));
// encap content info
ContentInfoParser encapContentInfo = signedData.GetEncapContentInfo();
BerSequenceGenerator eiGen = new BerSequenceGenerator(sigGen.GetRawOutputStream());
eiGen.AddObject(encapContentInfo.ContentType);
Asn1OctetStringParser octs = (Asn1OctetStringParser)encapContentInfo.GetContent(Asn1Tags.OctetString);
if (octs != null)
{
BerOctetStringGenerator octGen = new BerOctetStringGenerator(
eiGen.GetRawOutputStream(), 0, true);
byte[] inBuffer = new byte[4096];
byte[] outBuffer = new byte[4096];
Stream inOctets = octs.GetOctetStream();
Stream outOctets = octGen.GetOctetOutputStream(outBuffer);
int len;
while ((len = inOctets.Read(inBuffer, 0, inBuffer.Length)) > 0)
{
outOctets.Write(inBuffer, 0, len);
}
outOctets.Close();
}
eiGen.Close();
{
Asn1SetParser set = signedData.GetCertificates();
if (set != null)
{
Asn1Object setObj = set.ToAsn1Object();
Asn1TaggedObject taggedObj = (set is BerSetParser)
? new BerTaggedObject(false, 0, setObj)
: new DerTaggedObject(false, 0, setObj);
WriteToGenerator(sigGen, taggedObj);
}
}
{
Asn1SetParser set = signedData.GetCrls();
if (set != null)
{
Asn1Object setObj = set.ToAsn1Object();
Asn1TaggedObject taggedObj = (set is BerSetParser)
? new BerTaggedObject(false, 1, setObj)
: new DerTaggedObject(false, 1, setObj);
WriteToGenerator(sigGen, taggedObj);
}
}
Asn1EncodableVector signerInfos = new Asn1EncodableVector();
foreach (SignerInformation signer in signerInformationStore.GetSigners())
{
signerInfos.Add(signer.ToSignerInfo());
}
WriteToGenerator(sigGen, new DerSet(signerInfos));
sigGen.Close();
sGen.Close();
return(outStr);
}
/**
* base constructor
*
* @param signedContent the content that was signed.
* @param sigData the signature object.
*/
public CmsSignedDataParser(
CmsTypedStream signedContent,
Stream sigData)
: base(sigData)
{
try
{
this._signedContent = signedContent;
this._signedData = SignedDataParser.GetInstance(this.contentInfo.GetContent(Asn1Tags.Sequence));
this._digests = Platform.CreateHashtable();
this._digestOids = new HashSet();
Asn1SetParser digAlgs = _signedData.GetDigestAlgorithms();
IAsn1Convertible o;
while ((o = digAlgs.ReadObject()) != null)
{
AlgorithmIdentifier id = AlgorithmIdentifier.GetInstance(o.ToAsn1Object());
try
{
string digestOid = id.ObjectID.Id;
string digestName = Helper.GetDigestAlgName(digestOid);
if (!this._digests.Contains(digestName))
{
this._digests[digestName] = Helper.GetDigestInstance(digestName);
this._digestOids.Add(digestOid);
}
}
catch (SecurityUtilityException)
{
// TODO Should do something other than ignore it
}
}
//
// If the message is simply a certificate chain message GetContent() may return null.
//
ContentInfoParser cont = _signedData.GetEncapContentInfo();
Asn1OctetStringParser octs = (Asn1OctetStringParser)
cont.GetContent(Asn1Tags.OctetString);
if (octs != null)
{
CmsTypedStream ctStr = new CmsTypedStream(
cont.ContentType.Id, octs.GetOctetStream());
if (_signedContent == null)
{
this._signedContent = ctStr;
}
else
{
//
// content passed in, need to read past empty encapsulated content info object if present
//
ctStr.Drain();
}
}
_signedContentType = _signedContent == null
? cont.ContentType
: new DerObjectIdentifier(_signedContent.ContentType);
}
catch (IOException e)
{
throw new CmsException("io exception: " + e.Message, e);
}
if (_digests.Count < 1)
{
throw new CmsException("no digests could be created for message.");
}
}
public void TestNestedStructure()
{
MemoryStream bOut = new MemoryStream();
BerSequenceGenerator sGen = new BerSequenceGenerator(bOut);
sGen.AddObject(new DerObjectIdentifier(CmsObjectIdentifiers.CompressedData.Id));
BerSequenceGenerator cGen = new BerSequenceGenerator(sGen.GetRawOutputStream(), 0, true);
cGen.AddObject(new DerInteger(0));
//
// AlgorithmIdentifier
//
DerSequenceGenerator algGen = new DerSequenceGenerator(cGen.GetRawOutputStream());
algGen.AddObject(new DerObjectIdentifier("1.2"));
algGen.Close();
//
// Encapsulated ContentInfo
//
BerSequenceGenerator eiGen = new BerSequenceGenerator(cGen.GetRawOutputStream());
eiGen.AddObject(new DerObjectIdentifier("1.1"));
BerOctetStringGenerator octGen = new BerOctetStringGenerator(eiGen.GetRawOutputStream(), 0, true);
//
// output containing zeroes
//
Stream outStream = octGen.GetOctetOutputStream();
outStream.Write(new byte[] { 1, 2, 3, 4 }, 0, 4);
outStream.Write(new byte[4], 0, 4);
outStream.Write(new byte[20], 0, 20);
outStream.Close();
eiGen.Close();
cGen.Close();
sGen.Close();
//
// reading back
//
Asn1StreamParser aIn = new Asn1StreamParser(bOut.ToArray());
ContentInfoParser cp = new ContentInfoParser((Asn1SequenceParser)aIn.ReadObject());
CompressedDataParser comData = new CompressedDataParser((Asn1SequenceParser)cp.GetContent(Asn1Tags.Sequence));
ContentInfoParser content = comData.GetEncapContentInfo();
Asn1OctetStringParser bytes = (Asn1OctetStringParser)content.GetContent(Asn1Tags.OctetString);
Stream inStream = bytes.GetOctetStream();
int count = 0;
while (inStream.ReadByte() >= 0)
{
count++;
}
Assert.AreEqual(28, count);
}
