public CmsEnvelopedData( ContentInfo contentInfo) { this.contentInfo = contentInfo; EnvelopedData envData = EnvelopedData.GetInstance(contentInfo.Content); // // read the recipients // Asn1Set recipientInfos = envData.RecipientInfos; // // read the encrypted content info // EncryptedContentInfo encInfo = envData.EncryptedContentInfo; this.encAlg = encInfo.ContentEncryptionAlgorithm; ICmsReadable readable = new CmsProcessableByteArray(encInfo.EncryptedContent.GetOctets()); CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable( this.encAlg, readable); // // build the RecipientInformationStore // this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore( recipientInfos, secureReadable); this.unprotectedAttributes = envData.UnprotectedAttrs; }
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; // // read the recipients // Asn1Set recipientInfos = Asn1Set.GetInstance(this.envelopedData.GetRecipientInfos().ToAsn1Object()); // // read the encrypted content info // EncryptedContentInfoParser encInfo = this.envelopedData.GetEncryptedContentInfo(); this._encAlg = encInfo.ContentEncryptionAlgorithm; ICmsReadable readable = new CmsProcessableInputStream( ((Asn1OctetStringParser)encInfo.GetEncryptedContent(Asn1Tags.OctetString)).GetOctetStream()); CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsEnvelopedSecureReadable( this._encAlg, readable); // // build the RecipientInformationStore // this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore( recipientInfos, secureReadable); }
public CmsAuthenticatedData( ContentInfo contentInfo) { this.contentInfo = contentInfo; AuthenticatedData authData = AuthenticatedData.GetInstance(contentInfo.Content); // // read the recipients // Asn1Set recipientInfos = authData.RecipientInfos; this.macAlg = authData.MacAlgorithm; // // read the authenticated content info // ContentInfo encInfo = authData.EncapsulatedContentInfo; ICmsReadable readable = new CmsProcessableByteArray( Asn1OctetString.GetInstance(encInfo.Content).GetOctets()); CmsSecureReadable secureReadable = new CmsEnvelopedHelper.CmsAuthenticatedSecureReadable( this.macAlg, readable); // // build the RecipientInformationStore // this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore( recipientInfos, secureReadable); this.authAttrs = authData.AuthAttrs; this.mac = authData.Mac.GetOctets(); this.unauthAttrs = authData.UnauthAttrs; }
public CmsAuthEnvelopedData( ContentInfo contentInfo) { this.contentInfo = contentInfo; AuthEnvelopedData authEnvData = AuthEnvelopedData.GetInstance(contentInfo.Content); this.originator = authEnvData.OriginatorInfo; // // read the recipients // Asn1Set recipientInfos = authEnvData.RecipientInfos; // // read the auth-encrypted content info // EncryptedContentInfo authEncInfo = authEnvData.AuthEncryptedContentInfo; this.authEncAlg = authEncInfo.ContentEncryptionAlgorithm; CmsSecureReadable secureReadable = new AuthEnvelopedSecureReadable(this); // // build the RecipientInformationStore // this.recipientInfoStore = CmsEnvelopedHelper.BuildRecipientInformationStore( recipientInfos, secureReadable); // 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(); // // read the recipients // Asn1Set recipientInfos = Asn1Set.GetInstance(authData.GetRecipientInfos().ToAsn1Object()); this.macAlg = authData.GetMacAlgorithm(); // // read the authenticated content info // ContentInfoParser data = authData.GetEnapsulatedContentInfo(); ICmsReadable 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); }