CmsSignedData
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Operators.Utilities;
using Org.BouncyCastle.Utilities.Collections;
using Org.BouncyCastle.X509;
using System;
using System.Collections.Generic;
using System.IO;
namespace Org.BouncyCastle.Cms
{
public class CmsSignedData
{
private readonly CmsProcessable signedContent;
private SignedData signedData;
private ContentInfo contentInfo;
private SignerInformationStore signerInfoStore;
private IDictionary<string, byte[]> m_hashes;
public int Version => signedData.Version.IntValueExact;
public DerObjectIdentifier SignedContentType => signedData.EncapContentInfo.ContentType;
public CmsProcessable SignedContent => signedContent;
public ContentInfo ContentInfo => contentInfo;
private CmsSignedData(CmsSignedData c)
{
signedData = c.signedData;
contentInfo = c.contentInfo;
signedContent = c.signedContent;
signerInfoStore = c.signerInfoStore;
}
public CmsSignedData(byte[] sigBlock)
: this(CmsUtilities.ReadContentInfo(new MemoryStream(sigBlock, false)))
{
}
public CmsSignedData(CmsProcessable signedContent, byte[] sigBlock)
: this(signedContent, CmsUtilities.ReadContentInfo(new MemoryStream(sigBlock, false)))
{
}
public CmsSignedData(IDictionary<string, byte[]> hashes, byte[] sigBlock)
: this(hashes, CmsUtilities.ReadContentInfo(sigBlock))
{
}
public CmsSignedData(CmsProcessable signedContent, Stream sigData)
: this(signedContent, CmsUtilities.ReadContentInfo(sigData))
{
}
public CmsSignedData(Stream sigData)
: this(CmsUtilities.ReadContentInfo(sigData))
{
}
public CmsSignedData(CmsProcessable signedContent, ContentInfo sigData)
{
this.signedContent = signedContent;
contentInfo = sigData;
signedData = SignedData.GetInstance(contentInfo.Content);
}
public CmsSignedData(IDictionary<string, byte[]> hashes, ContentInfo sigData)
{
m_hashes = hashes;
contentInfo = sigData;
signedData = SignedData.GetInstance(contentInfo.Content);
}
public CmsSignedData(ContentInfo sigData)
{
contentInfo = sigData;
signedData = SignedData.GetInstance(contentInfo.Content);
if (signedData.EncapContentInfo.Content != null)
signedContent = new CmsProcessableByteArray(((Asn1OctetString)signedData.EncapContentInfo.Content).GetOctets());
}
public SignerInformationStore GetSignerInfos()
{
if (signerInfoStore == null) {
List<SignerInformation> list = new List<SignerInformation>();
foreach (Asn1Encodable signerInfo in signedData.SignerInfos) {
SignerInfo instance = SignerInfo.GetInstance(signerInfo);
DerObjectIdentifier contentType = signedData.EncapContentInfo.ContentType;
if (m_hashes == null)
list.Add(new SignerInformation(instance, contentType, signedContent, null));
else {
if (!m_hashes.TryGetValue(instance.DigestAlgorithm.Algorithm.Id, out byte[] value))
throw new InvalidOperationException();
list.Add(new SignerInformation(instance, contentType, null, value));
}
}
signerInfoStore = new SignerInformationStore(list);
}
return signerInfoStore;
}
public IStore<X509V2AttributeCertificate> GetAttributeCertificates()
{
return CmsSignedHelper.GetAttributeCertificates(signedData.Certificates);
}
public IStore<X509Certificate> GetCertificates()
{
return CmsSignedHelper.GetCertificates(signedData.Certificates);
}
public IStore<X509Crl> GetCrls()
{
return CmsSignedHelper.GetCrls(signedData.CRLs);
}
public IStore<Asn1Encodable> GetOtherRevInfos(DerObjectIdentifier otherRevInfoFormat)
{
return CmsSignedHelper.GetOtherRevInfos(signedData.CRLs, otherRevInfoFormat);
}
public ISet<AlgorithmIdentifier> GetDigestAlgorithmIDs()
{
Asn1Set digestAlgorithms = signedData.DigestAlgorithms;
HashSet<AlgorithmIdentifier> hashSet = new HashSet<AlgorithmIdentifier>();
foreach (Asn1Encodable item in digestAlgorithms) {
hashSet.Add(AlgorithmIdentifier.GetInstance(item));
}
return CollectionUtilities.ReadOnly(hashSet);
}
public byte[] GetEncoded()
{
return contentInfo.GetEncoded();
}
public byte[] GetEncoded(string encoding)
{
return contentInfo.GetEncoded(encoding);
}
public static CmsSignedData AddDigestAlgorithm(CmsSignedData signedData, AlgorithmIdentifier digestAlgorithm)
{
return AddDigestAlgorithm(signedData, digestAlgorithm, DefaultDigestAlgorithmFinder.Instance);
}
public static CmsSignedData AddDigestAlgorithm(CmsSignedData signedData, AlgorithmIdentifier digestAlgorithm, IDigestAlgorithmFinder digestAlgorithmFinder)
{
ISet<AlgorithmIdentifier> digestAlgorithmIDs = signedData.GetDigestAlgorithmIDs();
AlgorithmIdentifier item = CmsSignedHelper.FixDigestAlgID(digestAlgorithm, digestAlgorithmFinder);
if (digestAlgorithmIDs.Contains(item))
return signedData;
CmsSignedData cmsSignedData = new CmsSignedData(signedData);
HashSet<AlgorithmIdentifier> hashSet = new HashSet<AlgorithmIdentifier>();
foreach (AlgorithmIdentifier item2 in hashSet) {
hashSet.Add(CmsSignedHelper.FixDigestAlgID(item2, digestAlgorithmFinder));
}
hashSet.Add(item);
Asn1Set element = CmsUtilities.ConvertToDLSet(hashSet);
Asn1Sequence asn1Sequence = (Asn1Sequence)signedData.signedData.ToAsn1Object();
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(asn1Sequence.Count);
asn1EncodableVector.Add(asn1Sequence[0]);
asn1EncodableVector.Add(element);
for (int i = 2; i != asn1Sequence.Count; i++) {
asn1EncodableVector.Add(asn1Sequence[i]);
}
cmsSignedData.signedData = SignedData.GetInstance(new BerSequence(asn1EncodableVector));
cmsSignedData.contentInfo = new ContentInfo(cmsSignedData.contentInfo.ContentType, cmsSignedData.signedData);
return cmsSignedData;
}
public static CmsSignedData ReplaceSigners(CmsSignedData signedData, SignerInformationStore signerInformationStore)
{
return ReplaceSigners(signedData, signerInformationStore, DefaultDigestAlgorithmFinder.Instance);
}
public static CmsSignedData ReplaceSigners(CmsSignedData signedData, SignerInformationStore signerInformationStore, IDigestAlgorithmFinder digestAlgorithmFinder)
{
CmsSignedData cmsSignedData = new CmsSignedData(signedData);
cmsSignedData.signerInfoStore = signerInformationStore;
HashSet<AlgorithmIdentifier> digestAlgs = new HashSet<AlgorithmIdentifier>();
IList<SignerInformation> signers = signerInformationStore.GetSigners();
Asn1EncodableVector asn1EncodableVector = new Asn1EncodableVector(signers.Count);
foreach (SignerInformation item in signers) {
CmsUtilities.AddDigestAlgs(digestAlgs, item, digestAlgorithmFinder);
asn1EncodableVector.Add(item.ToSignerInfo());
}
Asn1Set element = CmsUtilities.ConvertToDLSet(digestAlgs);
Asn1Set element2 = DLSet.FromVector(asn1EncodableVector);
Asn1Sequence asn1Sequence = (Asn1Sequence)signedData.signedData.ToAsn1Object();
asn1EncodableVector = new Asn1EncodableVector(asn1Sequence.Count);
asn1EncodableVector.Add(asn1Sequence[0]);
asn1EncodableVector.Add(element);
for (int i = 2; i != asn1Sequence.Count - 1; i++) {
asn1EncodableVector.Add(asn1Sequence[i]);
}
asn1EncodableVector.Add(element2);
cmsSignedData.signedData = SignedData.GetInstance(new BerSequence(asn1EncodableVector));
cmsSignedData.contentInfo = new ContentInfo(cmsSignedData.contentInfo.ContentType, cmsSignedData.signedData);
return cmsSignedData;
}
public static CmsSignedData ReplaceCertificatesAndCrls(CmsSignedData signedData, IStore<X509Certificate> x509Certs, IStore<X509Crl> x509Crls)
{
return ReplaceCertificatesAndRevocations(signedData, x509Certs, x509Crls, null, null);
}
public static CmsSignedData ReplaceCertificatesAndCrls(CmsSignedData signedData, IStore<X509Certificate> x509Certs, IStore<X509Crl> x509Crls, IStore<X509V2AttributeCertificate> x509AttrCerts)
{
return ReplaceCertificatesAndRevocations(signedData, x509Certs, x509Crls, x509AttrCerts, null);
}
public static CmsSignedData ReplaceCertificatesAndRevocations(CmsSignedData signedData, IStore<X509Certificate> x509Certs, IStore<X509Crl> x509Crls, IStore<X509V2AttributeCertificate> x509AttrCerts, IStore<OtherRevocationInfoFormat> otherRevocationInfos)
{
CmsSignedData cmsSignedData = new CmsSignedData(signedData);
Asn1Set certificates = null;
Asn1Set crls = null;
if (x509Certs != null || x509AttrCerts != null) {
List<Asn1Encodable> list = new List<Asn1Encodable>();
if (x509Certs != null)
list.AddRange(CmsUtilities.GetCertificatesFromStore(x509Certs));
if (x509AttrCerts != null)
list.AddRange(CmsUtilities.GetAttributeCertificatesFromStore(x509AttrCerts));
Asn1Set asn1Set = CmsUtilities.CreateBerSetFromList(list);
if (asn1Set.Count > 0)
certificates = asn1Set;
}
if (x509Crls != null || otherRevocationInfos != null) {
List<Asn1Encodable> list2 = new List<Asn1Encodable>();
if (x509Crls != null)
list2.AddRange(CmsUtilities.GetCrlsFromStore(x509Crls));
if (otherRevocationInfos != null)
list2.AddRange(CmsUtilities.GetOtherRevocationInfosFromStore(otherRevocationInfos));
Asn1Set asn1Set2 = CmsUtilities.CreateBerSetFromList(list2);
if (asn1Set2.Count > 0)
crls = asn1Set2;
}
SignedData signedData2 = signedData.signedData;
cmsSignedData.signedData = new SignedData(signedData2.DigestAlgorithms, signedData2.EncapContentInfo, certificates, crls, signedData2.SignerInfos);
cmsSignedData.contentInfo = new ContentInfo(cmsSignedData.contentInfo.ContentType, cmsSignedData.signedData);
return cmsSignedData;
}
}
}