public CmsAuthenticatedData(
ContentInfo contentInfo)
{
this.contentInfo = contentInfo;
AuthenticatedData authData = AuthenticatedData.GetInstance(contentInfo.Content);
//
// read the encapsulated content info
//
ContentInfo encInfo = authData.EncapsulatedContentInfo;
this.macAlg = authData.MacAlgorithm;
this.mac = authData.Mac.GetOctets();
//
// load the RecipientInfoStore
//
byte[] contentOctets = Asn1OctetString.GetInstance(encInfo.Content).GetOctets();
IList infos = CmsEnvelopedHelper.ReadRecipientInfos(
authData.RecipientInfos, contentOctets, null, macAlg, null);
this.authAttrs = authData.AuthAttrs;
this.recipientInfoStore = new RecipientInformationStore(infos);
this.unauthAttrs = authData.UnauthAttrs;
}
public CmsAuthEnvelopedData(
ContentInfo contentInfo)
{
this.contentInfo = contentInfo;
AuthEnvelopedData authEnvData = AuthEnvelopedData.GetInstance(contentInfo.Content);
this.originator = authEnvData.OriginatorInfo;
//
// read the encrypted content info
//
EncryptedContentInfo authEncInfo = authEnvData.AuthEncryptedContentInfo;
this.authEncAlg = authEncInfo.ContentEncryptionAlgorithm;
//
// load the RecipientInfoStore
//
byte[] contentOctets = authEncInfo.EncryptedContent.GetOctets();
IList infos = CmsEnvelopedHelper.ReadRecipientInfos(
authEnvData.RecipientInfos, contentOctets, null, null, authEncAlg);
this.recipientInfoStore = new RecipientInformationStore(infos);
// FIXME These need to be passed to the AEAD cipher as AAD (Additional Authenticated Data)
this.authAttrs = authEnvData.AuthAttrs;
this.mac = authEnvData.Mac.GetOctets();
this.unauthAttrs = authEnvData.UnauthAttrs;
}
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);
}
public CmsEnvelopedDataParser(
Stream envelopedData)
: base(envelopedData)
{
this._attrNotRead = true;
this.envelopedData = new EnvelopedDataParser(
(Asn1SequenceParser)this.contentInfo.GetContent(Asn1Tags.Sequence));
// TODO Validate version?
//DerInteger version = this.envelopedData.Version;
//
// load the RecipientInfoStore
//
Asn1SetParser s = this.envelopedData.GetRecipientInfos();
IList baseInfos = new ArrayList();
IAsn1Convertible entry;
while ((entry = s.ReadObject()) != null)
{
baseInfos.Add(RecipientInfo.GetInstance(entry.ToAsn1Object()));
}
//
// read the encrypted content info
//
EncryptedContentInfoParser encInfo = this.envelopedData.GetEncryptedContentInfo();
this._encAlg = encInfo.ContentEncryptionAlgorithm;
//
// prime the recipients
//
Stream contentStream = ((Asn1OctetStringParser)encInfo.GetEncryptedContent(Asn1Tags.OctetString)).GetOctetStream();
IList infos = CmsEnvelopedHelper.ReadRecipientInfos(
baseInfos, contentStream, _encAlg, null, null);
this.recipientInfoStore = new RecipientInformationStore(infos);
}
public CmsEnvelopedData(
ContentInfo contentInfo)
{
this.contentInfo = contentInfo;
EnvelopedData envData = EnvelopedData.GetInstance(contentInfo.Content);
//
// read the encrypted content info
//
EncryptedContentInfo encInfo = envData.EncryptedContentInfo;
this.encAlg = encInfo.ContentEncryptionAlgorithm;
//
// load the RecipientInfoStore
//
byte[] contentOctets = encInfo.EncryptedContent.GetOctets();
IList infos = CmsEnvelopedHelper.ReadRecipientInfos(
envData.RecipientInfos, contentOctets, encAlg, null, null);
this.recipientInfoStore = new RecipientInformationStore(infos);
this.unprotectedAttributes = envData.UnprotectedAttrs;
}
