public EnvelopedData(OriginatorInfo originatorInfo, Asn1Set recipientInfos, EncryptedContentInfo encryptedContentInfo, Attributes unprotectedAttrs) { this.version = new DerInteger(EnvelopedData.CalculateVersion(originatorInfo, recipientInfos, Asn1Set.GetInstance(unprotectedAttrs))); this.originatorInfo = originatorInfo; this.recipientInfos = recipientInfos; this.encryptedContentInfo = encryptedContentInfo; this.unprotectedAttrs = Asn1Set.GetInstance(unprotectedAttrs); }
private Asn1Object CreateDERForRecipient(byte[] inp, X509Certificate cert) { String s = "1.2.840.113549.3.2"; byte[] outp = new byte[100]; DerObjectIdentifier derob = new DerObjectIdentifier(s); byte[] keyp = IVGenerator.GetIV(16); IBufferedCipher cf = CipherUtilities.GetCipher(derob); KeyParameter kp = new KeyParameter(keyp); byte[] iv = IVGenerator.GetIV(cf.GetBlockSize()); ParametersWithIV piv = new ParametersWithIV(kp, iv); cf.Init(true, piv); int len = cf.DoFinal(inp, outp, 0); byte[] abyte1 = new byte[len]; System.Array.Copy(outp, 0, abyte1, 0, len); DerOctetString deroctetstring = new DerOctetString(abyte1); KeyTransRecipientInfo keytransrecipientinfo = ComputeRecipientInfo(cert, keyp); DerSet derset = new DerSet(new RecipientInfo(keytransrecipientinfo)); Asn1EncodableVector ev = new Asn1EncodableVector(); ev.Add(new DerInteger(58)); ev.Add(new DerOctetString(iv)); DerSequence seq = new DerSequence(ev); AlgorithmIdentifier algorithmidentifier = new AlgorithmIdentifier(derob, seq); EncryptedContentInfo encryptedcontentinfo = new EncryptedContentInfo(PkcsObjectIdentifiers.Data, algorithmidentifier, deroctetstring); Asn1Set set = null; EnvelopedData env = new EnvelopedData(null, derset, encryptedcontentinfo, set); Org.BouncyCastle.Asn1.Cms.ContentInfo contentinfo = new Org.BouncyCastle.Asn1.Cms.ContentInfo(PkcsObjectIdentifiers.EnvelopedData, env); return contentinfo.ToAsn1Object(); }
public EncryptedKey(EnvelopedData envelopedData) { this.envelopedData = envelopedData; }
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 static EnvelopedData GetInstance(Asn1TaggedObject obj, bool explicitly) { return(EnvelopedData.GetInstance(Asn1Sequence.GetInstance(obj, explicitly))); }