private CmsSignedData(
CmsSignedData c)
{
this.signedData = c.signedData;
this.contentInfo = c.contentInfo;
this.signedContent = c.signedContent;
this.signerInfoStore = c.signerInfoStore;
}
private CmsSignedData(
CmsSignedData c)
{
this.signedData = c.signedData;
this.contentInfo = c.contentInfo;
this.signedContent = c.signedContent;
this.signerInfoStore = c.signerInfoStore;
}
/**
* Replace the signerinformation store associated with this
* CmsSignedData object 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.
*
* @param signedData the signed data object to be used as a base.
* @param signerInformationStore the new signer information store to use.
* @return a new signed data object.
*/
public static CmsSignedData ReplaceSigners(
CmsSignedData signedData,
SignerInformationStore signerInformationStore)
{
//
// copy
//
CmsSignedData cms = new CmsSignedData(signedData);
//
// replace the store
//
cms.signerInfoStore = signerInformationStore;
//
// replace the signers in the SignedData object
//
Asn1EncodableVector digestAlgs = new Asn1EncodableVector();
Asn1EncodableVector vec = new Asn1EncodableVector();
foreach (SignerInformation signer in signerInformationStore.GetSigners())
{
digestAlgs.Add(Helper.FixAlgID(signer.DigestAlgorithmID));
vec.Add(signer.ToSignerInfo());
}
Asn1Set digests = new DerSet(digestAlgs);
Asn1Set signers = new DerSet(vec);
Asn1Sequence sD = (Asn1Sequence)signedData.signedData.ToAsn1Object();
//
// signers are the last item in the sequence.
//
vec = new Asn1EncodableVector(
sD[0], // version
digests);
for (int i = 2; i != sD.Count - 1; i++)
{
vec.Add(sD[i]);
}
vec.Add(signers);
cms.signedData = SignedData.GetInstance(new BerSequence(vec));
//
// replace the contentInfo with the new one
//
cms.contentInfo = new ContentInfo(cms.contentInfo.ContentType, cms.signedData);
return(cms);
}
public TimeStampToken(
CmsSignedData signedData)
{
this.tsToken = signedData;
if (!this.tsToken.SignedContentType.Equals(PkcsObjectIdentifiers.IdCTTstInfo))
{
throw new TspValidationException("ContentInfo object not for a time stamp.");
}
ICollection signers = tsToken.GetSignerInfos().GetSigners();
if (signers.Count != 1)
{
throw new ArgumentException("Time-stamp token signed by "
+ signers.Count
+ " signers, but it must contain just the TSA signature.");
}
IEnumerator signerEnum = signers.GetEnumerator();
signerEnum.MoveNext();
tsaSignerInfo = (SignerInformation) signerEnum.Current;
try
{
CmsProcessable content = tsToken.SignedContent;
MemoryStream bOut = new MemoryStream();
content.Write(bOut);
this.tstInfo = new TimeStampTokenInfo(
TstInfo.GetInstance(
Asn1Object.FromByteArray(bOut.ToArray())));
Asn1.Cms.Attribute attr = tsaSignerInfo.SignedAttributes[
PkcsObjectIdentifiers.IdAASigningCertificate];
// if (attr == null)
// {
// throw new TspValidationException(
// "no signing certificate attribute found, time stamp invalid.");
// }
//
// SigningCertificate signCert = SigningCertificate.GetInstance(
// attr.AttrValues[0]);
//
// this.certID = EssCertID.GetInstance(signCert.GetCerts()[0]);
if (attr != null)
{
SigningCertificate signCert = SigningCertificate.GetInstance(attr.AttrValues[0]);
this.certID = new CertID(EssCertID.GetInstance(signCert.GetCerts()[0]));
}
else
{
attr = tsaSignerInfo.SignedAttributes[PkcsObjectIdentifiers.IdAASigningCertificateV2];
if (attr == null)
throw new TspValidationException("no signing certificate attribute found, time stamp invalid.");
SigningCertificateV2 signCertV2 = SigningCertificateV2.GetInstance(attr.AttrValues[0]);
this.certID = new CertID(EssCertIDv2.GetInstance(signCertV2.GetCerts()[0]));
}
}
catch (CmsException e)
{
throw new TspException(e.Message, e.InnerException);
}
}
/**
* Replace the certificate and CRL information associated with this
* CmsSignedData object with the new one passed in.
*
* @param signedData the signed data object to be used as a base.
* @param x509Certs the new certificates to be used.
* @param x509Crls the new CRLs to be used.
* @return a new signed data object.
* @exception CmsException if there is an error processing the stores
*/
public static CmsSignedData ReplaceCertificatesAndCrls(
CmsSignedData signedData,
IX509Store x509Certs,
IX509Store x509Crls,
IX509Store x509AttrCerts)
{
if (x509AttrCerts != null)
throw Platform.CreateNotImplementedException("Currently can't replace attribute certificates");
//
// copy
//
CmsSignedData cms = new CmsSignedData(signedData);
//
// replace the certs and crls in the SignedData object
//
Asn1Set certs = null;
try
{
Asn1Set asn1Set = CmsUtilities.CreateBerSetFromList(
CmsUtilities.GetCertificatesFromStore(x509Certs));
if (asn1Set.Count != 0)
{
certs = asn1Set;
}
}
catch (X509StoreException e)
{
throw new CmsException("error getting certificates from store", e);
}
Asn1Set crls = null;
try
{
Asn1Set asn1Set = CmsUtilities.CreateBerSetFromList(
CmsUtilities.GetCrlsFromStore(x509Crls));
if (asn1Set.Count != 0)
{
crls = asn1Set;
}
}
catch (X509StoreException e)
{
throw new CmsException("error getting CRLs from store", e);
}
//
// replace the CMS structure.
//
SignedData old = signedData.signedData;
cms.signedData = new SignedData(
old.DigestAlgorithms,
old.EncapContentInfo,
certs,
crls,
old.SignerInfos);
//
// replace the contentInfo with the new one
//
cms.contentInfo = new ContentInfo(cms.contentInfo.ContentType, cms.signedData);
return cms;
}
/**
* Replace the signerinformation store associated with this
* CmsSignedData object 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.
*
* @param signedData the signed data object to be used as a base.
* @param signerInformationStore the new signer information store to use.
* @return a new signed data object.
*/
public static CmsSignedData ReplaceSigners(
CmsSignedData signedData,
SignerInformationStore signerInformationStore)
{
//
// copy
//
CmsSignedData cms = new CmsSignedData(signedData);
//
// replace the store
//
cms.signerInfoStore = signerInformationStore;
//
// replace the signers in the SignedData object
//
Asn1EncodableVector digestAlgs = new Asn1EncodableVector();
Asn1EncodableVector vec = new Asn1EncodableVector();
foreach (SignerInformation signer in signerInformationStore.GetSigners())
{
digestAlgs.Add(Helper.FixAlgID(signer.DigestAlgorithmID));
vec.Add(signer.ToSignerInfo());
}
Asn1Set digests = new DerSet(digestAlgs);
Asn1Set signers = new DerSet(vec);
Asn1Sequence sD = (Asn1Sequence)signedData.signedData.ToAsn1Object();
//
// signers are the last item in the sequence.
//
vec = new Asn1EncodableVector(
sD[0], // version
digests);
for (int i = 2; i != sD.Count - 1; i++)
{
vec.Add(sD[i]);
}
vec.Add(signers);
cms.signedData = SignedData.GetInstance(new BerSequence(vec));
//
// replace the contentInfo with the new one
//
cms.contentInfo = new ContentInfo(cms.contentInfo.ContentType, cms.signedData);
return cms;
}
/**
* Replace the certificate and CRL information associated with this
* CmsSignedData object with the new one passed in.
*
* @param signedData the signed data object to be used as a base.
* @param x509Certs the new certificates to be used.
* @param x509Crls the new CRLs to be used.
* @return a new signed data object.
* @exception CmsException if there is an error processing the stores
*/
public static CmsSignedData ReplaceCertificatesAndCrls(
CmsSignedData signedData,
IX509Store x509Certs,
IX509Store x509Crls,
IX509Store x509AttrCerts)
{
if (x509AttrCerts != null)
{
throw Platform.CreateNotImplementedException("Currently can't replace attribute certificates");
}
//
// copy
//
CmsSignedData cms = new CmsSignedData(signedData);
//
// replace the certs and crls in the SignedData object
//
Asn1Set certs = null;
try
{
Asn1Set asn1Set = CmsUtilities.CreateBerSetFromList(
CmsUtilities.GetCertificatesFromStore(x509Certs));
if (asn1Set.Count != 0)
{
certs = asn1Set;
}
}
catch (X509StoreException e)
{
throw new CmsException("error getting certificates from store", e);
}
Asn1Set crls = null;
try
{
Asn1Set asn1Set = CmsUtilities.CreateBerSetFromList(
CmsUtilities.GetCrlsFromStore(x509Crls));
if (asn1Set.Count != 0)
{
crls = asn1Set;
}
}
catch (X509StoreException e)
{
throw new CmsException("error getting CRLs from store", e);
}
//
// replace the CMS structure.
//
SignedData old = signedData.signedData;
cms.signedData = new SignedData(
old.DigestAlgorithms,
old.EncapContentInfo,
certs,
crls,
old.SignerInfos);
//
// replace the contentInfo with the new one
//
cms.contentInfo = new ContentInfo(cms.contentInfo.ContentType, cms.signedData);
return(cms);
}
