public static void Rc4AndCngWrappersDontMixTest() { // // Combination of RC4 over a CAPI certificate. // // This works as long as the PKCS implementation opens the cert using CAPI. If he creates a CNG wrapper handle (by passing CRYPT_ACQUIRE_PREFER_NCRYPT_KEY_FLAG), // the test fails with a NOTSUPPORTED crypto exception inside Decrypt(). The same happens if the key is genuinely CNG. // byte[] content = { 6, 3, 128, 33, 44 }; AlgorithmIdentifier rc4 = new AlgorithmIdentifier(new Oid(Oids.Rc4)); EnvelopedCms ecms = new EnvelopedCms(new ContentInfo(content), rc4); CmsRecipientCollection recipients = new CmsRecipientCollection(new CmsRecipient(Certificates.RSAKeyTransferCapi1.GetCertificate())); ecms.Encrypt(recipients); byte[] encodedMessage = ecms.Encode(); ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); using (X509Certificate2 cert = Certificates.RSAKeyTransferCapi1.TryGetCertificateWithPrivateKey()) { if (cert == null) return; // Sorry - CertLoader is not configured to load certs with private keys - we've tested as much as we can. X509Certificate2Collection extraStore = new X509Certificate2Collection(); extraStore.Add(cert); ecms.Decrypt(extraStore); } ContentInfo contentInfo = ecms.ContentInfo; Assert.Equal<byte>(content, contentInfo.Content); }
private static void VerifyCertificates0(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); X509Certificate2Collection certs = ecms.Certificates; Assert.Equal(0, certs.Count); }
private static void VerifyUnprotectedAttributes0(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); AsnEncodedData[] attributes = ecms.UnprotectedAttributes.FlattenAndSort(); Assert.Equal(0, attributes.Length); }
public static void ImportEdgeCase() { // // Pfx's imported into a certificate collection propagate their "delete on Dispose" behavior to its cloned instances: // a subtle difference from Pfx's created using the X509Certificate2 constructor that can lead to premature or // double key deletion. Since EnvelopeCms.Decrypt() has no legitimate reason to clone the extraStore certs, this shouldn't // be a problem, but this test will verify that it isn't. // byte[] encodedMessage = ("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253" + "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e" + "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c" + "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4" + "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d" + "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.LoadPfxUsingCollectionImport()) { X509Certificate2Collection extraStore = new X509Certificate2Collection(cert); ecms.Decrypt(extraStore); byte[] expectedContent = { 1, 2, 3 }; ContentInfo contentInfo = ecms.ContentInfo; Assert.Equal<byte>(expectedContent, contentInfo.Content); } }
private static void VerifyVersion0(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); int version = ecms.Version; Assert.Equal(0, version); }
private static void VerifyUnprotectedAttributes1_DocumentDescription(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); AsnEncodedData[] attributes = ecms.UnprotectedAttributes.FlattenAndSort(); Assert.Equal(1, attributes.Length); attributes[0].AssertIsDocumentationDescription("My Description"); }
private static void VerifyAlgorithmRc2_128(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); AlgorithmIdentifier algorithm = ecms.ContentEncryptionAlgorithm; Assert.NotNull(algorithm.Oid); Assert.Equal(Oids.Rc2, algorithm.Oid.Value); Assert.Equal(128, algorithm.KeyLength); }
public static string DecryptEnvelop(string base64EncryptedString) { var encryptedBytes = Convert.FromBase64String(base64EncryptedString); var envelope = new EnvelopedCms(); envelope.Decode(encryptedBytes); var store = new X509Store(StoreName.My, StoreLocation.LocalMachine); store.Open(OpenFlags.ReadOnly); envelope.Decrypt(store.Certificates); return Encoding.UTF8.GetString(envelope.ContentInfo.Content); }
public static string Decrypt(string encryptedString) { // パスワードを復号 var store = new X509Store(StoreLocation.LocalMachine); // (StoreLocation.LocalMachine); store.Open(OpenFlags.ReadOnly); var encPasswordBase64 = Convert.FromBase64String(encryptedString); var enveloped = new EnvelopedCms(); enveloped.Decode(encPasswordBase64); enveloped.Decrypt(store.Certificates); return Encoding.UTF8.GetString(enveloped.ContentInfo.Content); }
/// <summary> /// Decrypts enveloped mime content. /// </summary> /// <param name="cert">Decrypting certificate.</param> /// <returns>Returns decrypted enveloped mime content.</returns> /// <exception cref="ArgumentNullException">Is raised when <b>cert</b> is null reference.</exception> /// <exception cref="InvalidOperationException">Is raised when <b>smime-type != enveloped-data</b>.</exception> public MIME_Message GetEnvelopedMime(X509Certificate2 cert) { if(cert == null){ throw new ArgumentNullException("cert"); } if(!string.Equals(this.Entity.ContentType.Parameters["smime-type"],"enveloped-data",StringComparison.InvariantCultureIgnoreCase)){ throw new InvalidOperationException("The VerifySignature method is only valid if Content-Type parameter smime-type=enveloped-data."); } EnvelopedCms envelopedCms = new EnvelopedCms(); envelopedCms.Decode(this.Data); X509Certificate2Collection certificates = new X509Certificate2Collection(cert); envelopedCms.Decrypt(certificates); return MIME_Message.ParseFromStream(new MemoryStream(envelopedCms.Encode())); }
/// <summary> /// Decrypts the specified string. /// </summary> /// <param name="ciphertext">The ciphertext to be decrypted.</param> /// <param name="certificates">A set of certificates containing the one that was used to encrypt the ciphertext.</param> /// <returns>The decrypted text.</returns> public static string Decrypt(this string ciphertext, params X509Certificate2[] certificates) { var store = new X509Store(StoreName.My, StoreLocation.LocalMachine); store.Open(OpenFlags.ReadOnly); var certCollection = store.Certificates; if (certificates != null && certificates.Length > 0) { certCollection.AddRange(certificates); } var envelopedCms = new EnvelopedCms(); envelopedCms.Decode(Convert.FromBase64String(ciphertext)); envelopedCms.Decrypt(certCollection); return Encoding.UTF8.GetString(envelopedCms.ContentInfo.Content); }
public static void ImportEdgeCaseSki() { byte[] encodedMessage = ("3081f206092a864886f70d010703a081e43081e10201023181ae3081ab0201028014f2008aa9fa3742e8370cb1674ce1d158" + "2921dcc3300d06092a864886f70d01010105000481804336e978bc72ba2f5264cd854867fac438f36f2b3df6004528f2df83" + "4fb2113d6f7c07667e7296b029756222d6ced396a8fffed32be838eec7f2e54b9467fa80f85d097f7d1f0fbde57e07ab3d46" + "a60b31f37ef9844dcab2a8eef4fec5579fac5ec1e7ee82409898e17d30c3ac1a407fca15d23c9df2904a707294d78d4300ba" + "302b06092a864886f70d010701301406082a864886f70d03070408355c596e3e8540608008f1f811e862e51bbd").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.LoadPfxUsingCollectionImport()) { X509Certificate2Collection extraStore = new X509Certificate2Collection(cert); ecms.Decrypt(extraStore); byte[] expectedContent = { 1, 2, 3 }; ContentInfo contentInfo = ecms.ContentInfo; Assert.Equal<byte>(new byte[] { 1, 2, 3 }, contentInfo.Content); Assert.Equal<byte>(expectedContent, contentInfo.Content); } }
public static void ReuseEnvelopeCmsEncodeThenDecode() { // Test ability to encrypt, encode and decode all in one EnvelopedCms instance. ContentInfo contentInfo = new ContentInfo(new byte[] { 1, 2, 3 }); EnvelopedCms ecms = new EnvelopedCms(contentInfo); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate()) { CmsRecipient cmsRecipient = new CmsRecipient(cert); ecms.Encrypt(cmsRecipient); } byte[] encodedMessage = ecms.Encode(); ecms.Decode(encodedMessage); RecipientInfoCollection recipients = ecms.RecipientInfos; Assert.Equal(1, recipients.Count); RecipientInfo recipientInfo = recipients[0]; KeyTransRecipientInfo recipient = recipientInfo as KeyTransRecipientInfo; Assert.NotNull(recipientInfo); SubjectIdentifier subjectIdentifier = recipient.RecipientIdentifier; object value = subjectIdentifier.Value; Assert.True(value is X509IssuerSerial); X509IssuerSerial xis = (X509IssuerSerial)value; Assert.Equal("CN=RSAKeyTransfer1", xis.IssuerName); Assert.Equal("31D935FB63E8CFAB48A0BF7B397B67C0", xis.SerialNumber); }
/// <summary> /// Decrypt the encrypted data. /// </summary> /// <remarks> /// Decrypt the encrypted data. /// </remarks> /// <returns>The decrypted <see cref="MimeKit.MimeEntity"/>.</returns> /// <param name="encryptedData">The encrypted data.</param> /// <exception cref="System.ArgumentNullException"> /// <paramref name="encryptedData"/> is <c>null</c>. /// </exception> /// <exception cref="System.Security.Cryptography.CryptographicException"> /// An error occurred in the cryptographic message syntax subsystem. /// </exception> public override MimeEntity Decrypt (Stream encryptedData) { if (encryptedData == null) throw new ArgumentNullException ("encryptedData"); var enveloped = new EnvelopedCms (); enveloped.Decode (ReadAllBytes (encryptedData)); enveloped.Decrypt (); var decryptedData = enveloped.Encode (); var memory = new MemoryStream (decryptedData, false); return MimeEntity.Load (memory, true); }
private KeyTransRecipientInfo GetKeyTransRecipientInfo (byte[] encoded) { EnvelopedCms ep = new EnvelopedCms (); ep.Decode (encoded); return (KeyTransRecipientInfo) ep.RecipientInfos [0]; }
public static byte[] Decrypt(byte[] kryptertData) { var envelopedCms = new EnvelopedCms(); envelopedCms.Decode(kryptertData); envelopedCms.Decrypt(envelopedCms.RecipientInfos[0]); return envelopedCms.ContentInfo.Content; }
/* [Test] [ExpectedException (typeof (ArgumentNullException))] public void DecryptX509CertificateExCollectionNull () { EnvelopedPkcs7 ep = new EnvelopedPkcs7 (); RecipientInfo ri = ep.Decrypt (ri, null); }*/ private void RoundTrip (byte[] encoded) { X509Certificate2Collection xc = new X509Certificate2Collection (); xc.Add (GetCertificate (true)); EnvelopedCms ep = new EnvelopedCms (); ep.Decode (encoded); ep.Decrypt (xc); Assert.AreEqual ("05-00", BitConverter.ToString (ep.ContentInfo.Content), "ContentInfo.Content"); }
/// <summary> /// Decrypt the encrypted data. /// </summary> /// <returns>The decrypted <see cref="MimeKit.MimeEntity"/>.</returns> /// <param name="encryptedData">The encrypted data.</param> /// <exception cref="System.ArgumentNullException"> /// <paramref name="encryptedData"/> is <c>null</c>. /// </exception> /// <exception cref="System.Security.Cryptography.CryptographicException"> /// An error occurred in the cryptographic message syntax subsystem. /// </exception> public override MimeEntity Decrypt(Stream encryptedData) { if (encryptedData == null) throw new ArgumentNullException ("encryptedData"); var enveloped = new EnvelopedCms (); enveloped.Decode (ReadAllBytes (encryptedData)); var store = new X509Store (StoreName.My, StoreLocation); store.Open (OpenFlags.ReadOnly); enveloped.Decrypt (); store.Close (); var decryptedData = enveloped.Encode (); using (var memory = new MemoryStream (decryptedData, false)) { return MimeEntity.Load (memory); } }
/// <summary> /// Gets the CMS Message object /// </summary> protected override void EndProcessing() { string actualContent = null; // Read in the content if (String.Equals("ByContent", this.ParameterSetName, StringComparison.OrdinalIgnoreCase)) { actualContent = _contentBuffer.ToString(); } else { actualContent = System.IO.File.ReadAllText(_resolvedPath); } // Extract out the bytes and Base64 decode them int startIndex, endIndex; byte[] contentBytes = CmsUtils.RemoveAsciiArmor(actualContent, CmsUtils.BEGIN_CMS_SIGIL, CmsUtils.END_CMS_SIGIL, out startIndex, out endIndex); if (contentBytes == null) { ErrorRecord error = new ErrorRecord( new ArgumentException(CmsCommands.InputContainedNoEncryptedContent), "InputContainedNoEncryptedContent", ErrorCategory.ObjectNotFound, null); ThrowTerminatingError(error); } EnvelopedCms cms = new EnvelopedCms(); cms.Decode(contentBytes); PSObject result = new PSObject(cms); List<Object> recipients = new List<Object>(); foreach (RecipientInfo recipient in cms.RecipientInfos) { recipients.Add(recipient.RecipientIdentifier.Value); } result.Properties.Add( new PSNoteProperty("Recipients", recipients)); result.Properties.Add( new PSNoteProperty("Content", actualContent)); WriteObject(result); }
public static void EnvelopedCmsDecryptWithoutMatchingCertSki() { // You don't have the private key? No message for you. // This is the private key that "we don't have." We want to force it to load anyway, though, to trigger // the "fail the test due to bad machine config" exception if someone left this cert in the MY store check. using (X509Certificate2 ignore = Certificates.RSAKeyTransfer1.TryGetCertificateWithPrivateKey()) { } byte[] encodedMessage = ("3081f206092a864886f70d010703a081e43081e10201023181ae3081ab0201028014f2008aa9fa3742e8370cb1674ce1d158" + "2921dcc3300d06092a864886f70d01010105000481804336e978bc72ba2f5264cd854867fac438f36f2b3df6004528f2df83" + "4fb2113d6f7c07667e7296b029756222d6ced396a8fffed32be838eec7f2e54b9467fa80f85d097f7d1f0fbde57e07ab3d46" + "a60b31f37ef9844dcab2a8eef4fec5579fac5ec1e7ee82409898e17d30c3ac1a407fca15d23c9df2904a707294d78d4300ba" + "302b06092a864886f70d010701301406082a864886f70d03070408355c596e3e8540608008f1f811e862e51bbd").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); RecipientInfo recipientInfo = ecms.RecipientInfos[0]; X509Certificate2Collection extraStore = new X509Certificate2Collection(); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(recipientInfo)); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(extraStore)); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(recipientInfo, extraStore)); }
public static void EnvelopedCmsDecryptNullExtraStore() { byte[] encodedMessage = ("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253" + "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e" + "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c" + "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4" + "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d" + "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); RecipientInfo recipientInfo = ecms.RecipientInfos[0]; X509Certificate2Collection extraStore = null; Assert.Throws<ArgumentNullException>(() => ecms.Decrypt(extraStore)); Assert.Throws<ArgumentNullException>(() => ecms.Decrypt(recipientInfo, extraStore)); }
public static void ReuseEnvelopeCmsDecodeThenEncode() { byte[] encodedMessage = ("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253" + "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e" + "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c" + "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4" + "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d" + "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate()) { CmsRecipient cmsRecipient = new CmsRecipient(cert); ecms.Encrypt(cmsRecipient); } encodedMessage = ecms.Encode(); ecms.Decode(encodedMessage); RecipientInfoCollection recipients = ecms.RecipientInfos; Assert.Equal(1, recipients.Count); RecipientInfo recipientInfo = recipients[0]; KeyTransRecipientInfo recipient = recipientInfo as KeyTransRecipientInfo; Assert.NotNull(recipientInfo); SubjectIdentifier subjectIdentifier = recipient.RecipientIdentifier; object value = subjectIdentifier.Value; Assert.True(value is X509IssuerSerial); X509IssuerSerial xis = (X509IssuerSerial)value; Assert.Equal("CN=RSAKeyTransfer1", xis.IssuerName); Assert.Equal("31D935FB63E8CFAB48A0BF7B397B67C0", xis.SerialNumber); }
public static void EnvelopedCmsNullDecode() { EnvelopedCms ecms = new EnvelopedCms(); Assert.Throws<ArgumentNullException>(() => ecms.Decode(null)); }
private static KeyTransRecipientInfo EncodeKeyTransl(SubjectIdentifierType type = SubjectIdentifierType.IssuerAndSerialNumber) { ContentInfo contentInfo = new ContentInfo(new byte[] { 1, 2, 3 }); EnvelopedCms ecms = new EnvelopedCms(contentInfo); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate()) { CmsRecipient cmsRecipient = new CmsRecipient(type, cert); ecms.Encrypt(cmsRecipient); } byte[] encodedMessage = ecms.Encode(); EnvelopedCms ecms2 = new EnvelopedCms(); ecms2.Decode(encodedMessage); RecipientInfoCollection recipients = ecms2.RecipientInfos; Assert.Equal(1, recipients.Count); RecipientInfo recipientInfo = recipients[0]; Assert.True(recipientInfo is KeyTransRecipientInfo); return (KeyTransRecipientInfo)recipientInfo; }
public static void EnvelopedCmsDecryptWithoutMatchingCert() { // You don't have the private key? No message for you. // This is the private key that "we don't have." We want to force it to load anyway, though, to trigger // the "fail the test due to bad machine config" exception if someone left this cert in the MY store check. using (X509Certificate2 ignore = Certificates.RSAKeyTransfer1.TryGetCertificateWithPrivateKey()) { } byte[] encodedMessage = ("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253" + "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e" + "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c" + "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4" + "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d" + "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray(); EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); RecipientInfo recipientInfo = ecms.RecipientInfos[0]; X509Certificate2Collection extraStore = new X509Certificate2Collection(); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(recipientInfo)); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(extraStore)); Assert.ThrowsAny<CryptographicException>(() => ecms.Decrypt(recipientInfo, extraStore)); }
private static KeyTransRecipientInfo FixedValueKeyTrans1(SubjectIdentifierType type = SubjectIdentifierType.IssuerAndSerialNumber) { byte[] encodedMessage; switch (type) { case SubjectIdentifierType.IssuerAndSerialNumber: encodedMessage = s_KeyTransEncodedMessage; break; case SubjectIdentifierType.SubjectKeyIdentifier: encodedMessage = s_KeyTransEncodedMessage_Ski; break; default: throw new Exception("Bad SubjectIdentifierType."); } EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); RecipientInfoCollection recipients = ecms.RecipientInfos; Assert.Equal(1, recipients.Count); RecipientInfo recipientInfo = recipients[0]; Assert.True(recipientInfo is KeyTransRecipientInfo); return (KeyTransRecipientInfo)recipientInfo; }
/// <summary> /// Extracts the original message from the S/MIME envelope and decrypts it. /// </summary> /// <param name="extraStore">Certificates with private keys to be used in addition to those found in the current user's personal store.</param> /// <returns>A Message object representing the message as it was before encryption.</returns> /// <example> /// <code> /// [C#] /// /// // Load a certificate (with private key) and add it to the collection. /// X509Certificate2 cert = new X509Certificate2("C:\\mycertificate.pfx"); /// /// // We retrieved a Message object by some means and have a reference to it in variable message. /// Message originalMessage = message.SmimeDevelopeAndDecrypt(new X509Certificate2Collection(cert)); /// /// //originalMessage contains all information about the encrypted message. /// /// </code> /// </example> #if !PocketPC public Message SmimeDevelopeAndDecrypt(X509Certificate2Collection extraStore) { if (!this.IsSmimeEncrypted) throw new InvalidOperationException("This message doesn't seem to be encrypted, or the encryption method is unknown."); else { EnvelopedCms cms = new EnvelopedCms(); cms.Decode(this.PartTreeRoot.BinaryContent); cms.Decrypt(extraStore); Message sub = Parser.ParseMessage(cms.ContentInfo.Content); return sub; } }
private static void ValidateZeroLengthContent(byte[] encodedMessage) { EnvelopedCms ecms = new EnvelopedCms(); ecms.Decode(encodedMessage); using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.TryGetCertificateWithPrivateKey()) { if (cert == null) return; X509Certificate2Collection extraStore = new X509Certificate2Collection(cert); ecms.Decrypt(extraStore); ContentInfo contentInfo = ecms.ContentInfo; byte[] content = contentInfo.Content; if (content.Length == 6) throw new Exception("ContentInfo expected to be 0 but was actually 6. If you're running on the desktop CLR, this is actually a known bug."); Assert.Equal(0, content.Length); } }
private string Decrypt(string actualContent) { // Extract out the bytes and Base64 decode them int startIndex, endIndex; byte[] messageBytes = CmsUtils.RemoveAsciiArmor(actualContent, CmsUtils.BEGIN_CMS_SIGIL, CmsUtils.END_CMS_SIGIL, out startIndex, out endIndex); if ((messageBytes == null) && (!IncludeContext)) { ErrorRecord error = new ErrorRecord( new ArgumentException( String.Format(CultureInfo.InvariantCulture, CmsCommands.InputContainedNoEncryptedContentIncludeContext, "-IncludeContext")), "InputContainedNoEncryptedContentIncludeContext", ErrorCategory.ObjectNotFound, null); ThrowTerminatingError(error); } // Capture the pre and post context, if there was any string preContext = null; string postContext = null; if (IncludeContext) { if (startIndex > -1) { preContext = actualContent.Substring(0, startIndex); } if (endIndex > -1) { postContext = actualContent.Substring(endIndex); } } EnvelopedCms cms = new EnvelopedCms(); X509Certificate2Collection certificates = new X509Certificate2Collection(); if ((To != null) && (To.Length > 0)) { ErrorRecord error = null; foreach (CmsMessageRecipient recipient in To) { recipient.Resolve(this.SessionState, ResolutionPurpose.Decryption, out error); if (error != null) { ThrowTerminatingError(error); return null; } foreach (X509Certificate2 certificate in recipient.Certificates) { certificates.Add(certificate); } } } string resultString = actualContent; if (messageBytes != null) { cms.Decode(messageBytes); cms.Decrypt(certificates); resultString = System.Text.Encoding.UTF8.GetString(cms.ContentInfo.Content); } if (IncludeContext) { if (preContext != null) { resultString = preContext + resultString; } if (postContext != null) { resultString = resultString + postContext; } } return resultString; }
public byte[] decrypt(byte[] data) { var envelopedCms = new EnvelopedCms(); envelopedCms.Decode(data); envelopedCms.Decrypt(envelopedCms.RecipientInfos[0]); return envelopedCms.ContentInfo.Content; }