/// <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 PostDecrypt_Encode(bool useExplicitPrivateKey)
{
byte[] expectedContent = { 6, 3, 128, 33, 44 };
EnvelopedCms ecms = new EnvelopedCms(new ContentInfo(expectedContent));
ecms.Encrypt(new CmsRecipient(Certificates.RSAKeyTransfer1.GetCertificate()));
byte[] encodedMessage =
("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253"
+ "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d010101050004818067"
+ "6bada56dcaf2e65226941242db73b5a5420a6212cd6af662db52fdc0ca63875cb69066f7074da0fc009ce724e2d73fb19380"
+ "2deea8d92b069486a41c7c4fc3cd0174a918a559f79319039b40ae797bcacc909c361275ee2a5b1f0ff09fb5c19508e3f5ac"
+ "051ac0f03603c27fb8993d49ac428f8bcfc23a90ef9b0fac0f423a302b06092a864886f70d010701301406082a864886f70d"
+ "0307040828dc4d72ca3132e48008546cc90f2c5d4b79").HexToByteArray();
ecms.Decode(encodedMessage);
using (X509Certificate2 cer = Certificates.RSAKeyTransfer1.TryGetCertificateWithPrivateKey())
{
if (cer == null)
{
return; // Sorry - CertLoader is not configured to load certs with private keys - we've tested as much as we can.
}
RecipientInfoCollection r = ecms.RecipientInfos;
if (useExplicitPrivateKey)
{
#if netcoreapp
ecms.Decrypt(r[0], cer.GetRSAPrivateKey());
#else
Assert.True(false, "Should not run on this platform");
#endif
}
else
{
X509Certificate2Collection extraStore = new X509Certificate2Collection(cer);
ecms.Decrypt(r[0], extraStore);
}
// Desktop compat: Calling Encode() at this point should have thrown an InvalidOperationException. Instead, it returns
// the decrypted inner content (same as ecms.ContentInfo.Content). This is easy for someone to take a reliance on
// so for compat sake, we'd better keep it.
byte[] encoded = ecms.Encode();
Assert.Equal <byte>(expectedContent, encoded);
}
}
public static void PostDecode_Encode()
{
byte[] encodedMessage =
("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253"
+ "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e"
+ "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c"
+ "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4"
+ "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d"
+ "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
// This should really have thrown an InvalidOperationException. Instead, you get... something back.
byte[] expectedGarbage = "35edc437e31d0b70".HexToByteArray();
byte[] garbage = ecms.Encode();
AssertEncryptedContentEqual(expectedGarbage, garbage);
}
public void EncryptToNegativeSerialNumber()
{
CertLoader negativeSerial = Certificates.NegativeSerialNumber;
const string expectedSerial = "FD319CB1514B06AF49E00522277E43C8";
byte[] content = { 1, 2, 3 };
ContentInfo contentInfo = new ContentInfo(content);
EnvelopedCms cms = new EnvelopedCms(contentInfo);
using (X509Certificate2 cert = negativeSerial.GetCertificate())
{
Assert.Equal(expectedSerial, cert.SerialNumber);
CmsRecipient recipient = new CmsRecipient(SubjectIdentifierType.IssuerAndSerialNumber, cert);
cms.Encrypt(recipient);
}
EnvelopedCms cms2 = new EnvelopedCms();
cms2.Decode(cms.Encode());
RecipientInfoCollection recipients = cms2.RecipientInfos;
Assert.Equal(1, recipients.Count);
RecipientInfo recipientInfo = recipients[0];
Assert.Equal(SubjectIdentifierType.IssuerAndSerialNumber, recipientInfo.RecipientIdentifier.Type);
X509IssuerSerial issuerSerial = (X509IssuerSerial)recipientInfo.RecipientIdentifier.Value;
Assert.Equal(expectedSerial, issuerSerial.SerialNumber);
using (X509Certificate2 cert = negativeSerial.TryGetCertificateWithPrivateKey())
{
Assert.Equal(expectedSerial, cert.SerialNumber);
cms2.Decrypt(new X509Certificate2Collection(cert));
}
Assert.Equal(content, cms2.ContentInfo.Content);
}
private static void VerifySimpleDecrypt(byte[] encodedMessage, CertLoader certLoader, ContentInfo expectedContent)
{
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
using (X509Certificate2 cert = certLoader.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(cert);
ecms.Decrypt(extraStore);
ContentInfo contentInfo = ecms.ContentInfo;
Assert.Equal(expectedContent.ContentType.Value, contentInfo.ContentType.Value);
Assert.Equal <byte>(expectedContent.Content, contentInfo.Content);
}
}
public static void TestUnprotectedAttributes_AlwaysReturnsPkcs9AttributeObject()
{
byte[] encodedMessage = CreateEcmsWithAttributes(
new AsnEncodedData(new Oid(Oids.Pkcs7Data), new byte[] { 4, 3, 6, 7, 8 })
);
// ecms.Decode() always populates UnprotectedAttribute objects with Pkcs9AttributeObjects (or one of its derived classes) rather than
// AsnEncodedData instances. Verify that any new implementation does this as someone out there is probably
// casting to Pkcs9AttributeObject without checking.
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
AsnEncodedData[] attributes = ecms.UnprotectedAttributes.FlattenAndSort();
Assert.Equal(1, attributes.Length);
AsnEncodedData a = attributes[0];
Assert.True(a is Pkcs9AttributeObject);
}
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));
}
/// <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));
}
/// <summary>
/// Decrypt the encoded EnvelopedCms message.
/// </summary>
/// <param name="encodedEnvelopedCms">Array of bytes containing the encrypted message</param>
/// <returns>Array of bytes containing the decrypted message</returns>
protected Byte[] DecryptMsg(byte[] encodedEnvelopedCms)
{
// Prepare object in which to decode and decrypt.
EnvelopedCms envelopedCms = new EnvelopedCms();
// Decode the message.
envelopedCms.Decode(encodedEnvelopedCms);
// Display the number of recipients the message is enveloped for; it should be 1 for this example.
//DisplayEnvelopedCms(envelopedCms, false);
// Decrypt the message for the single recipient. Note that the following call to the Decrypt method
// accomplishes the same result: envelopedCms.Decrypt();
//Console.Write("Decrypting Data ... ");
envelopedCms.Decrypt(envelopedCms.RecipientInfos[0]);
//Console.WriteLine("Done.");
return(envelopedCms.Encode());
}
public static void EncryptionAlgorithmAes128_IgnoresKeyLength()
{
// For .NET Framework compat, static key length ciphers ignore the key lengths supplied
AlgorithmIdentifier algorithm = new AlgorithmIdentifier(new Oid(Oids.Aes128), 3);
ContentInfo contentInfo = new ContentInfo(new byte[] { 1, 2, 3 });
EnvelopedCms ecms = new EnvelopedCms(contentInfo, algorithm);
using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate())
{
CmsRecipient cmsRecipient = new CmsRecipient(cert);
ecms.Encrypt(cmsRecipient);
}
byte[] encodedMessage = ecms.Encode();
ecms.Decode(encodedMessage);
Assert.Equal(Oids.Aes128, ecms.ContentEncryptionAlgorithm.Oid.Value);
Assert.Equal(0, ecms.ContentEncryptionAlgorithm.KeyLength);
}
public ISecurable DecryptContent(ISecurable pStr)
{
byte[] sBytes = pStr.GetBytes();
byte[] content = StringSecurer.FromBase64BytesToBytes(sBytes);
var cms = new EnvelopedCms();
cms.Decode(content);
try
{
cms.Decrypt();
}
catch (Exception ex)
{
throw new ProtectedStringDecryptionException(ex);
}
var pts = StringSecurer.FromBase64Bytes(cms.ContentInfo.Content);
return(pts);
}
private static void VerifyRecipients3(byte[] encodedMessage)
{
string[] expectedIssuers = s_certs.Select(c => c.Issuer).OrderBy(s => s).ToArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
RecipientInfoCollection col = ecms.RecipientInfos;
int numRecipients = col.Count;
Assert.Equal(3, numRecipients);
RecipientInfo[] recipients = new RecipientInfo[numRecipients];
col.CopyTo(recipients, 0);
string[] actualIssuers = recipients.Select(r => r.RecipientIdentifier.Value).Cast <X509IssuerSerial>().Select(xis => xis.IssuerName).OrderBy(s => s).ToArray();
Assert.Equal <string>(expectedIssuers, actualIssuers);
}
public static void DecodeAlgorithmRc4_40_FixedValue()
{
byte[] encodedMessage =
("3082011006092A864886F70D010703A08201013081FE0201003181CC3081C90201003032301E311C301A060"
+ "355040313135253414B65795472616E73666572436170693102105D2FFFF863BABC9B4D3C80AB178A4CCA30"
+ "0D06092A864886F70D01010105000481809D242C1517B82A58335E0337B0B2CE97B2789AF31A6B31311417B"
+ "A069D0D76FD08AE5B4F58C290116667FFD00319AA7AFED4EEAD9D5031C0D17A48E6CB39A5EB62C8BD7F4C2C"
+ "BE8E581EF8B7FF7BA9376923A367B9B7E031F630E4CA6ADCB31209B04B03E64076FB0465E7E437B13D4AEA2"
+ "70CA89EB58C1A598F0AC88DCB4024302A06092A864886F70D010701301706082A864886F70D0304040B4B5A"
+ "8F64D714F933642D4A8004C68A936F").HexToByteArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
AlgorithmIdentifier algorithm = ecms.ContentEncryptionAlgorithm;
Assert.NotNull(algorithm.Oid);
Assert.Equal(Oids.Rc4, algorithm.Oid.Value);
Assert.Equal(40, algorithm.KeyLength);
}
/// <summary>
/// Decrypts the contents of the decoded enveloped CMS/PKCS #7 message by using the private key associated with the certificate identified.
/// </summary>
/// <param name="encodedMessage">An array of byte values that represent the information to be decoded.</param>
/// <param name="certificate">The certificate used to decrypt the encoded message.</param>
/// <returns>Cryptographic message syntax information.</returns>
public CmsInfo Decrypt(byte[] encodedMessage, X509Certificate2 certificate)
{
// Decode and decrypt.
_cms.Decode(encodedMessage);
_cms.Decrypt(new X509Certificate2Collection(certificate));
// CMS information.
Cryptography.CmsInfo cmsInfo = new Cryptography.CmsInfo();
// Set the newly set members,
cmsInfo.Certificates = _cms.Certificates;
cmsInfo.ContentEncryptionAlgorithm = _cms.ContentEncryptionAlgorithm;
cmsInfo.ContentInfo = _cms.ContentInfo;
cmsInfo.RecipientInfos = _cms.RecipientInfos;
cmsInfo.UnprotectedAttributes = _cms.UnprotectedAttributes;
cmsInfo.Version = _cms.Version;
// Return the information.
return(cmsInfo);
}
public static string Decrypt(string fullMessage)
{
string messageContent = GetContentInBase64(fullMessage);
// Load envelope and decrypt
EnvelopedCms envelope = new EnvelopedCms();
envelope.Decode(Convert.FromBase64String(messageContent));
envelope.Decrypt();
// Get original bytes
byte[] decryptedBytes = envelope.ContentInfo.Content;
string decryptedText = Encoding.ASCII.GetString(decryptedBytes);
// Get processed Base64 content
byte[] decryptedContentBytes = Convert.FromBase64String(GetContentInBase64(decryptedText));
string decryptedContentText = Encoding.UTF8.GetString(decryptedContentBytes);
return(decryptedContentText);
}
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;
int expected = PlatformDetection.IsFullFramework ? 6 : 0; // Desktop bug gives 6
Assert.Equal(expected, content.Length);
}
}
public static void Encrypt_Data_DoesNotIncreaseInSize()
{
byte[] content = new byte[15]; // One short of AES block size boundary
ContentInfo contentInfo = new ContentInfo(content);
AlgorithmIdentifier identifier = new AlgorithmIdentifier(new Oid(Oids.Aes128));
EnvelopedCms ecms = new EnvelopedCms(contentInfo, identifier);
using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate())
{
CmsRecipient recipient = new CmsRecipient(cert);
ecms.Encrypt(recipient);
}
byte[] encoded = ecms.Encode();
EnvelopedCms reDecoded = new EnvelopedCms();
reDecoded.Decode(encoded);
int expectedSize = PlatformDetection.IsNetFramework ? 22 : 16; //NetFx compat.
Assert.Equal(expectedSize, reDecoded.ContentInfo.Content.Length);
}
/// <summary>
/// Расшифровать данные и получить массив байт
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public byte[] DecryptByteArray(byte[] data)
{
byte[] byteResult = null;
try
{
EnvelopedCms envelopedCms = new EnvelopedCms();
envelopedCms.Decode(data);
envelopedCms.Decrypt(envelopedCms.RecipientInfos[0]);
byteResult = envelopedCms.ContentInfo.Content;
}
catch (Exception exp)
{
Log.DssLogger.Error($"Ошибка при зашифровании строки: {exp}");
byteResult = null;
}
return(byteResult);
}
/// <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 encryptedData to an output stream.
/// </summary>
/// <remarks>
/// Decrypts the specified encryptedData to an output stream.
/// </remarks>
/// <param name="encryptedData">The encrypted data.</param>
/// <param name="output">The output stream.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="encryptedData"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="output"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="System.Security.Cryptography.CryptographicException">
/// An error occurred in the cryptographic message syntax subsystem.
/// </exception>
public override void DecryptTo(Stream encryptedData, Stream output)
{
if (encryptedData == null)
{
throw new ArgumentNullException(nameof(encryptedData));
}
if (output == null)
{
throw new ArgumentNullException(nameof(output));
}
var enveloped = new EnvelopedCms();
enveloped.Decode(ReadAllBytes(encryptedData));
enveloped.Decrypt();
var decryptedData = enveloped.Encode();
output.Write(decryptedData, 0, decryptedData.Length);
}
private void ButtonDecryptFromStore_Click(object sender, EventArgs e)
{
EnvelopedCms envelopedCms = new EnvelopedCms();
try {
X509Store store = new X509Store(StoreName.My, StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certs = X509Certificate2UI.SelectFromCollection(store.Certificates, "Certificates", "Choose one certificate...", X509SelectionFlag.SingleSelection);
store.Close();
if (certs.Count == 1)
{
envelopedCms.Decode(tempEnvelope);
envelopedCms.Decrypt(certs);
MessageBox.Show("Message decrypted!" + Environment.NewLine + Encoding.UTF8.GetString(envelopedCms.ContentInfo.Content));
}
} catch (Exception ex) {
MessageBox.Show(ex.Message);
}
}
public static void PostDecode_ContentInfo()
{
byte[] encodedMessage =
("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253"
+ "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d01010105000481805e"
+ "bb2d08773594be9ec5d30c0707cf339f2b982a4f0797b74d520a0c973d668a9a6ad9d28066ef36e5b5620fef67f4d79ee50c"
+ "25eb999f0c656548347d5676ac4b779f8fce2b87e6388fbe483bb0fcf78ab1f1ff29169600401fded7b2803a0bf96cc160c4"
+ "96726216e986869eed578bda652855c85604a056201538ee56b6c4302b06092a864886f70d010701301406082a864886f70d"
+ "030704083adadf63cd297a86800835edc437e31d0b70").HexToByteArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
// This gets you the encrypted inner content.
ContentInfo contentInfo = ecms.ContentInfo;
Assert.Equal(Oids.Pkcs7Data, contentInfo.ContentType.Value);
byte[] expectedGarbage = "35edc437e31d0b70".HexToByteArray();
AssertEncryptedContentEqual(expectedGarbage, contentInfo.Content);
}
/// <summary>
/// Decrypts the given data with the given certificate
/// </summary>
/// <param name="toDecrypt">Data to encrypt</param>
/// <param name="decryptionCert">Certificate to encrypt with</param>
/// <returns>The decrypted data</returns>
public byte[] DecryptWithCertificate(byte[] toDecrypt, X509Certificate2 decryptionCert)
{
if (toDecrypt == null)
{
throw new ArgumentNullException(nameof(toDecrypt));
}
if (decryptionCert == null)
{
throw new ArgumentNullException(nameof(decryptionCert));
}
X509Certificate2Collection decryptCerts = new X509Certificate2Collection(decryptionCert);
ContentInfo contentInfo = new ContentInfo(toDecrypt);
EnvelopedCms cms = new EnvelopedCms(contentInfo);
cms.Decode(contentInfo.Content);
cms.Decrypt(decryptCerts);
return(cms.ContentInfo.Content);
}
//decrpts mime message bytes with a valid cert in the user cert store
// returns the decrypted message as a string
private string DecryptMessage(byte[] encryptedMessageBytes)
{
//get cert store and collection of valid certs
X509Store store = new X509Store("MY", StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadOnly | OpenFlags.OpenExistingOnly);
X509Certificate2Collection collection = (X509Certificate2Collection)store.Certificates;
X509Certificate2Collection fcollection = (X509Certificate2Collection)collection.Find(X509FindType.FindByTimeValid, DateTime.Now, false);
//decrypt bytes with EnvelopedCms
#if !NETCOREAPP
EnvelopedCms ec = new EnvelopedCms();
ec.Decode(encryptedMessageBytes);
ec.Decrypt(fcollection);
byte[] decryptedData = ec.ContentInfo.Content;
return(System.Text.Encoding.ASCII.GetString(decryptedData));
#else
throw new XstException("CMS decoding not supported on this platform");
#endif
}
public static void DecodeAlgorithmRc2_40_RoundTrip()
{
ContentInfo contentInfo = new ContentInfo(new byte[] { 1, 2, 3, 4 });
EnvelopedCms ecms = new EnvelopedCms(contentInfo, new AlgorithmIdentifier(new Oid(Oids.Rc2), 40));
using (X509Certificate2 cert = Certificates.RSAKeyTransferCapi1.GetCertificate())
{
ecms.Encrypt(new CmsRecipient(SubjectIdentifierType.IssuerAndSerialNumber, cert));
}
byte[] encodedMessage = ecms.Encode();
ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
AlgorithmIdentifier algorithm = ecms.ContentEncryptionAlgorithm;
Assert.NotNull(algorithm.Oid);
Assert.Equal(Oids.Rc2, algorithm.Oid.Value);
Assert.Equal(40, algorithm.KeyLength);
}
public static void PostDecrypt_RecipientInfos()
{
byte[] expectedContent = { 6, 3, 128, 33, 44 };
EnvelopedCms ecms = new EnvelopedCms(new ContentInfo(expectedContent));
ecms.Encrypt(new CmsRecipient(Certificates.RSAKeyTransfer1.GetCertificate()));
byte[] encodedMessage =
("3082010c06092a864886f70d010703a081fe3081fb0201003181c83081c5020100302e301a311830160603550403130f5253"
+ "414b65795472616e7366657231021031d935fb63e8cfab48a0bf7b397b67c0300d06092a864886f70d010101050004818067"
+ "6bada56dcaf2e65226941242db73b5a5420a6212cd6af662db52fdc0ca63875cb69066f7074da0fc009ce724e2d73fb19380"
+ "2deea8d92b069486a41c7c4fc3cd0174a918a559f79319039b40ae797bcacc909c361275ee2a5b1f0ff09fb5c19508e3f5ac"
+ "051ac0f03603c27fb8993d49ac428f8bcfc23a90ef9b0fac0f423a302b06092a864886f70d010701301406082a864886f70d"
+ "0307040828dc4d72ca3132e48008546cc90f2c5d4b79").HexToByteArray();
ecms.Decode(encodedMessage);
using (X509Certificate2 cer = Certificates.RSAKeyTransfer1.TryGetCertificateWithPrivateKey())
{
if (cer == 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(cer);
RecipientInfoCollection col1 = ecms.RecipientInfos;
ecms.Decrypt(col1[0], extraStore);
// Make sure we can still RecipientInfos after a Decrypt()
RecipientInfoCollection col2 = ecms.RecipientInfos;
Assert.Equal(col1.Count, col2.Count);
RecipientInfo r1 = col1[0];
RecipientInfo r2 = col2[0];
X509IssuerSerial is1 = (X509IssuerSerial)(r1.RecipientIdentifier.Value);
X509IssuerSerial is2 = (X509IssuerSerial)(r2.RecipientIdentifier.Value);
Assert.Equal(is1.IssuerName, is2.IssuerName);
Assert.Equal(is1.SerialNumber, is2.SerialNumber);
}
}
public static void DecodeAlgorithmRc2_40_FixedValue()
{
ContentInfo expectedContentInfo = new ContentInfo(new byte[] { 1, 2, 3, 4 });
byte[] encodedMessage =
("3082011806092A864886F70D010703A0820109308201050201003181CC3081C90201003032301E311C301A0"
+ "60355040313135253414B65795472616E73666572436170693102105D2FFFF863BABC9B4D3C80AB178A4CCA"
+ "300D06092A864886F70D010101050004818004E46A48651034B01134B0D4F665C9E85F6C45B58458ECDBAFE"
+ "B6B55CBFA9AEBEFA52BCBEF3C8811B5118970562623FC35D4B733B55CBC50DA4F49822E1D198834897D3540"
+ "7B329FECF49277159F2FEAB31173004776B03746381E0DA660B6D656A861E54E79186F36F450105DEB2714D"
+ "02DB5500921EBE4F1A7D3DFB07E4EE9303106092A864886F70D010701301A06082A864886F70D0302300E02"
+ "0200A00408D621253C94AF659B800802930ACE6A997122").HexToByteArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encodedMessage);
AlgorithmIdentifier algorithm = ecms.ContentEncryptionAlgorithm;
Assert.NotNull(algorithm.Oid);
Assert.Equal(Oids.Rc2, algorithm.Oid.Value);
Assert.Equal(40, algorithm.KeyLength);
}
/// <summary>
/// Расшифровать массив данных
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public string[] DecryptStringArray(byte[] data)
{
string[] result = null;
try
{
EnvelopedCms envelopedCms = new EnvelopedCms();
envelopedCms.Decode(data);
envelopedCms.Decrypt(envelopedCms.RecipientInfos[0]);
byte[] byteResult = envelopedCms.ContentInfo.Content;
result = new List <string>(byteResult.BytesToList <string>()).ToArray();
}
catch (Exception exp)
{
Log.DssLogger.Error($"Ошибка при зашифровании строки: {exp}");
result = null;
}
return(result);
}
public static void PostEncode_DifferentData()
{
// This ensures that the decoding and encoding output different values to make sure Encrypt changes the state of the data.
byte[] encoded =
("3082010206092A864886F70D010703A081F43081F10201003181C83081C5020100302E301A311830160603550403130F"
+ "5253414B65795472616E7366657231021031D935FB63E8CFAB48A0BF7B397B67C0300D06092A864886F70D0101010500"
+ "04818009C16B674495C2C3D4763189C3274CF7A9142FBEEC8902ABDC9CE29910D541DF910E029A31443DC9A9F3B05F02"
+ "DA1C38478C400261C734D6789C4197C20143C4312CEAA99ECB1849718326D4FC3B7FBB2D1D23281E31584A63E99F2C17"
+ "132BCD8EDDB632967125CD0A4BAA1EFA8CE4C855F7C093339211BDF990CEF5CCE6CD74302106092A864886F70D010701"
+ "301406082A864886F70D03070408779B3DE045826B18").HexToByteArray();
EnvelopedCms ecms = new EnvelopedCms();
ecms.Decode(encoded);
using (X509Certificate2 cert = Certificates.RSAKeyTransfer1.GetCertificate())
{
ecms.Encrypt(new CmsRecipient(cert));
}
byte[] encrypted = ecms.Encode();
Assert.NotEqual <byte>(encoded, encrypted);
}
public void Decode()
{
byte[] encoded = { 0x30, 0x82, 0x01, 0x1C, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x07, 0x03, 0xA0, 0x82, 0x01, 0x0D, 0x30, 0x82, 0x01, 0x09, 0x02, 0x01, 0x00, 0x31, 0x81, 0xD6, 0x30, 0x81, 0xD3, 0x02, 0x01, 0x00, 0x30, 0x3C, 0x30, 0x28, 0x31, 0x26, 0x30, 0x24, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x1D, 0x4D, 0x6F, 0x74, 0x75, 0x73, 0x20, 0x54, 0x65, 0x63, 0x68, 0x6E, 0x6F, 0x6C, 0x6F, 0x67, 0x69, 0x65, 0x73, 0x20, 0x69, 0x6E, 0x63, 0x2E, 0x28, 0x74, 0x65, 0x73, 0x74, 0x29, 0x02, 0x10, 0x91, 0xC4, 0x4B, 0x0D, 0xB7, 0xD8, 0x10, 0x84, 0x42, 0x26, 0x71, 0xB3, 0x97, 0xB5, 0x00, 0x97, 0x30, 0x0D, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x81, 0x80, 0xCA, 0x4B, 0x97, 0x9C, 0xAB, 0x79, 0xC6, 0xDF, 0x6A, 0x27, 0xC7, 0x24, 0xC4, 0x5E, 0x3B, 0x31, 0xAD, 0xBC, 0x25, 0xE6, 0x38, 0x5E, 0x79, 0x26, 0x0E, 0x68, 0x46, 0x1D, 0x21, 0x81, 0x38, 0x92, 0xEC, 0xCB, 0x7C, 0x91, 0xD6, 0x09, 0x38, 0x91, 0xCE, 0x50, 0x5B, 0x70, 0x31, 0xB0, 0x9F, 0xFC, 0xE2, 0xEE, 0x45, 0xBC, 0x4B, 0xF8, 0x9A, 0xD9, 0xEE, 0xE7, 0x4A, 0x3D, 0xCD, 0x8D, 0xFF, 0x10, 0xAB, 0xC8, 0x19, 0x05, 0x54, 0x5E, 0x40, 0x7A, 0xBE, 0x2B, 0xD7, 0x22, 0x97, 0xF3, 0x23, 0xAF, 0x50, 0xF5, 0xEB, 0x43, 0x06, 0xC3, 0xFB, 0x17, 0xCA, 0xBD, 0xAD, 0x28, 0xD8, 0x10, 0x0F, 0x61, 0xCE, 0xF8, 0x25, 0x70, 0xF6, 0xC8, 0x1E, 0x7F, 0x82, 0xE5, 0x94, 0xEB, 0x11, 0xBF, 0xB8, 0x6F, 0xEE, 0x79, 0xCD, 0x63, 0xDD, 0x59, 0x8D, 0x25, 0x0E, 0x78, 0x55, 0xCE, 0x21, 0xBA, 0x13, 0x6B, 0x30, 0x2B, 0x06, 0x09, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x07, 0x01, 0x30, 0x14, 0x06, 0x08, 0x2A, 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x03, 0x07, 0x04, 0x08, 0x8C, 0x5D, 0xC9, 0x87, 0x88, 0x9C, 0x05, 0x72, 0x80, 0x08, 0x2C, 0xAF, 0x82, 0x91, 0xEC, 0xAD, 0xC5, 0xB5 };
EnvelopedCms ep = new EnvelopedCms();
ep.Decode(encoded);
// properties
Assert.AreEqual(0, ep.Certificates.Count, "Certificates");
Assert.AreEqual(192, ep.ContentEncryptionAlgorithm.KeyLength, "ContentEncryptionAlgorithm.KeyLength");
Assert.AreEqual(tdesName, ep.ContentEncryptionAlgorithm.Oid.FriendlyName, "ContentEncryptionAlgorithm.Oid.FriendlyName");
Assert.AreEqual(tdesOid, ep.ContentEncryptionAlgorithm.Oid.Value, "ContentEncryptionAlgorithm.Oid.Value");
Assert.AreEqual(16, ep.ContentEncryptionAlgorithm.Parameters.Length, "ContentEncryptionAlgorithm.Parameters");
Assert.AreEqual(p7DataName, ep.ContentInfo.ContentType.FriendlyName, "ContentInfo.ContentType.FriendlyName");
Assert.AreEqual(p7DataOid, ep.ContentInfo.ContentType.Value, "ContentInfo.ContentType.Value");
Assert.AreEqual(14, ep.ContentInfo.Content.Length, "ContentInfo.Content");
Assert.AreEqual(1, ep.RecipientInfos.Count, "RecipientInfos");
RecipientInfo ri = ep.RecipientInfos [0];
Assert.IsTrue((ri is KeyTransRecipientInfo), "RecipientInfos is KeyTransRecipientInfo");
Assert.AreEqual(0, ep.UnprotectedAttributes.Count, "UnprotectedAttributes");
Assert.AreEqual(0, ep.Version, "Version");
}