/// <summary>
/// Sign the content using the specified signer.
/// </summary>
/// <remarks>
/// Sign the content using the specified signer.
/// </remarks>
/// <returns>A new <see cref="MimeKit.MimePart"/> instance
/// containing the detached signature data.</returns>
/// <param name="signer">The signer.</param>
/// <param name="digestAlgo">The digest algorithm to use for signing.</param>
/// <param name="content">The content.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="signer"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="content"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// <paramref name="digestAlgo"/> is out of range.
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The specified <see cref="DigestAlgorithm"/> is not supported by this context.
/// </exception>
/// <exception cref="CertificateNotFoundException">
/// A signing certificate could not be found for <paramref name="signer"/>.
/// </exception>
/// <exception cref="System.Security.Cryptography.CryptographicException">
/// An error occurred in the cryptographic message syntax subsystem.
/// </exception>
public override MimePart Sign(MailboxAddress signer, DigestAlgorithm digestAlgo, Stream content)
{
if (signer == null)
{
throw new ArgumentNullException("signer");
}
if (content == null)
{
throw new ArgumentNullException("content");
}
var contentInfo = new ContentInfo(ReadAllBytes(content));
var cmsSigner = GetRealCmsSigner(signer, digestAlgo);
var signed = new SignedCms(contentInfo, true);
signed.ComputeSignature(cmsSigner);
var signedData = signed.Encode();
return(new ApplicationPkcs7Signature(new MemoryStream(signedData, false)));
}
private static byte[] GenerateSignatureBlock(SignerConfig signerConfig, byte[] signatureFileBytes)
{
var signerCert = signerConfig.Certificate;
var digestAlgorithm = signerConfig.SignatureDigestAlgorithm;
var digestAlgorithmId = digestAlgorithm.Oid;
var content = new ContentInfo(DataOid, signatureFileBytes);
var signedCms = new SignedCms(content, true);
var signer = new CmsSigner(signerCert)
{
DigestAlgorithm = digestAlgorithmId
};
signedCms.ComputeSignature(signer);
var encoded = signedCms.Encode();
return(encoded);
}
public static void BuildFromSignerInfo()
{
ContentInfo content = new ContentInfo(new byte[] { 1, 2, 3, 4 });
SignedCms cms = new SignedCms(content, false);
using (X509Certificate2 signerCert = Certificates.RSAKeyTransferCapi1.TryGetCertificateWithPrivateKey())
{
CmsSigner signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, signerCert);
signer.SignedAttributes.Add(new Pkcs9SigningTime());
cms.ComputeSignature(signer);
}
SignerInfo signerInfo = cms.SignerInfos[0];
byte[] sig = signerInfo.GetSignature();
Rfc3161TimestampRequest fromSigner = Rfc3161TimestampRequest.CreateFromSignerInfo(signerInfo, HashAlgorithmName.SHA256);
Rfc3161TimestampRequest fromData = Rfc3161TimestampRequest.CreateFromData(sig, HashAlgorithmName.SHA256);
Assert.Equal(fromData.Encode().ByteArrayToHex(), fromSigner.Encode().ByteArrayToHex());
}
public byte[] GetSignedCms(Stream stream)
{
var range = new byte[stream.Length];
stream.Position = 0;
stream.Read(range, 0, range.Length);
var contentInfo = new ContentInfo(range);
SignedCms signedCms = new SignedCms(contentInfo, true);
CmsSigner signer = new CmsSigner(Certificate);
signer.UnsignedAttributes.Add(new Pkcs9SigningTime());
signedCms.ComputeSignature(signer, true);
var bytes = signedCms.Encode();
return(bytes);
}
/// <summary>
/// Sign and encapsulate the content using the specified signer.
/// </summary>
/// <remarks>
/// Sign and encapsulate the content using the specified signer.
/// </remarks>
/// <returns>A new <see cref="MimeKit.Cryptography.ApplicationPkcs7Mime"/> instance
/// containing the detached signature data.</returns>
/// <param name="signer">The signer.</param>
/// <param name="digestAlgo">The digest algorithm to use for signing.</param>
/// <param name="content">The content.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="signer"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="content"/> is <c>null</c>.</para>
/// </exception>
/// <exception cref="System.ArgumentOutOfRangeException">
/// <paramref name="digestAlgo"/> is out of range.
/// </exception>
/// <exception cref="System.NotSupportedException">
/// The specified <see cref="DigestAlgorithm"/> is not supported by this context.
/// </exception>
/// <exception cref="CertificateNotFoundException">
/// A signing certificate could not be found for <paramref name="signer"/>.
/// </exception>
/// <exception cref="System.Security.Cryptography.CryptographicException">
/// An error occurred in the cryptographic message syntax subsystem.
/// </exception>
public override ApplicationPkcs7Mime EncapsulatedSign(MailboxAddress signer, DigestAlgorithm digestAlgo, Stream content)
{
if (signer == null)
{
throw new ArgumentNullException(nameof(signer));
}
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
var contentInfo = new ContentInfo(ReadAllBytes(content));
var cmsSigner = GetRealCmsSigner(signer, digestAlgo);
var signed = new SignedCms(contentInfo, false);
signed.ComputeSignature(cmsSigner);
var signedData = signed.Encode();
return(new ApplicationPkcs7Mime(SecureMimeType.SignedData, new MemoryStream(signedData, false)));
}
private static PrimarySignature CreatePrimarySignature(CmsSigner cmsSigner, SignPackageRequest request, byte[] signingData)
{
var contentInfo = new ContentInfo(signingData);
var cms = new SignedCms(contentInfo);
try
{
cms.ComputeSignature(cmsSigner);
}
catch (CryptographicException ex) when(ex.HResult == INVALID_PROVIDER_TYPE_HRESULT)
{
var exceptionBuilder = new StringBuilder();
exceptionBuilder.AppendLine(Strings.SignFailureCertificateInvalidProviderType);
exceptionBuilder.AppendLine(CertificateUtility.X509Certificate2ToString(request.Certificate, Common.HashAlgorithmName.SHA256));
throw new SignatureException(NuGetLogCode.NU3001, exceptionBuilder.ToString());
}
return(PrimarySignature.Load(cms));
}
public void ComputeSignatureCmsSignerSubjectKeyIdentifier()
{
ContentInfo ci = new ContentInfo(asnNull);
SignedCms sp = new SignedCms(ci);
CmsSigner signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, GetCertificate(true));
signer.Certificates.Add(new X509Certificate2(intca_cer));
signer.Certificates.Add(new X509Certificate2(root_cer));
sp.ComputeSignature(signer);
byte[] encoded = sp.Encode();
string s = BitConverter.ToString(encoded);
#if DEBUG
FileStream fs = File.OpenWrite("ComputeSignaturePkcs7SignerSubjectKeyIdentifier.der");
fs.Write(encoded, 0, encoded.Length);
fs.Close();
#endif
RoundTrip(encoded);
}
static void Example4()
{
// If using Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY");
using (var document = PdfDocument.Load("Reading.pdf"))
{
// Add an invisible signature field to the PDF document.
var signatureField = document.Form.Fields.AddSignature();
// Initiate signing of a PDF file with the specified signer delegate.
signatureField.Sign(pdfFileStream =>
{
// Create a signed CMS object using the content that should be signed,
// but not included in the signed CMS object (detached: true).
var content = new byte[pdfFileStream.Length];
pdfFileStream.Read(content, 0, content.Length);
var signedCms = new SignedCms(new ContentInfo(content), detached: true);
X509Certificate2 certificate = null;
try
{
// Compute the signature using the specified digital ID file and the password.
certificate = new X509Certificate2("GemBoxExampleExplorer.pfx", "GemBoxPassword");
signedCms.ComputeSignature(new CmsSigner(certificate));
}
finally
{
// Starting with the .NET Framework 4.6, this type implements the IDisposable interface.
(certificate as IDisposable)?.Dispose();
}
// Return the signature encoded into a CMS/PKCS #7 message.
return(signedCms.Encode());
}, PdfSignatureFormat.PKCS7, 2199);
// Finish signing of a PDF file.
document.Save("External Digital Signature.pdf");
}
}
public static void SignerInfo_AddRemoveUnsignedAttributes_JoinCounterSignaturesAttributesIntoOne()
{
byte[] message = { 1, 2, 3, 4, 5 };
ContentInfo content = new ContentInfo(message);
SignedCms cms = new SignedCms(content);
using (X509Certificate2 signerCert = Certificates.RSA2048SignatureOnly.TryGetCertificateWithPrivateKey())
{
CmsSigner signer = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, signerCert);
cms.ComputeSignature(signer);
}
using (X509Certificate2 counterSigner1cert = Certificates.Dsa1024.TryGetCertificateWithPrivateKey())
{
CmsSigner counterSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, counterSigner1cert);
counterSigner.IncludeOption = X509IncludeOption.EndCertOnly;
counterSigner.DigestAlgorithm = new Oid(Oids.Sha1, Oids.Sha1);
cms.SignerInfos[0].ComputeCounterSignature(counterSigner);
}
using (X509Certificate2 counterSigner2cert = Certificates.ECDsaP256Win.TryGetCertificateWithPrivateKey())
{
CmsSigner counterSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, counterSigner2cert);
cms.SignerInfos[0].ComputeCounterSignature(counterSigner);
}
Assert.Equal(2, cms.SignerInfos[0].UnsignedAttributes.Count);
Assert.Equal(1, cms.SignerInfos[0].UnsignedAttributes[0].Values.Count);
Assert.Equal(1, cms.SignerInfos[0].UnsignedAttributes[1].Values.Count);
cms.CheckSignature(true);
AsnEncodedData counterSignature = cms.SignerInfos[0].UnsignedAttributes[0].Values[0];
cms.SignerInfos[0].RemoveUnsignedAttribute(counterSignature);
cms.SignerInfos[0].AddUnsignedAttribute(counterSignature);
Assert.Equal(1, cms.SignerInfos[0].UnsignedAttributes.Count);
Assert.Equal(2, cms.SignerInfos[0].UnsignedAttributes[0].Values.Count);
cms.CheckSignature(true);
}
public byte[] GetSignature(byte[] content)
{
if (content == null)
{
throw new ArgumentNullException(nameof(content));
}
var certificate = _CertificateProvider.GetCertificate();
if (!certificate.HasPrivateKey)
{
throw new InvalidOperationException($"Certificate does not have a private key - Subject:{certificate.Subject} Thumbprint:{certificate.Thumbprint}.");
}
var contentInfo = new ContentInfo(content);
var signedCms = new SignedCms(contentInfo, true);
var signer = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, certificate)
{
IncludeOption = X509IncludeOption.EndCertOnly
};
try
{
signedCms.ComputeSignature(signer);
}
catch (Exception e)
{
//NB. Cannot catch the internal exception type (cross-platform design of .NET Core)
if (e.GetType().Name == "WindowsCryptographicException" && e.Message == "Keyset does not exist" && !WindowsIdentityQueries.CurrentUserIsAdministrator())
{
throw new InvalidOperationException("Failed to sign with certificate when current user does not have UAC elevated permissions.", e);
}
throw;
}
return(signedCms.Encode());
}
private static byte[] CreateSignedDataPkcs7(byte[] encryptedMessageData, X509Certificate2 localPrivateKey)
{
// Create the outer envelope, signed with the local private key
var signer = new CmsSigner(localPrivateKey)
{
DigestAlgorithm = Oids.Pkcs.MD5
};
// Message Type (messageType): https://tools.ietf.org/html/draft-nourse-scep-23#section-3.1.1.2
// PKCS#10 request = PKCSReq (19)
var messageType = new AsnEncodedData(Oids.Scep.MessageType, DerEncoding.EncodePrintableString("19"));
signer.SignedAttributes.Add(messageType);
// Tranaction ID (transId): https://tools.ietf.org/html/draft-nourse-scep-23#section-3.1.1.1
var sha = new SHA512Managed();
var hashedKey = sha.ComputeHash(localPrivateKey.GetPublicKey());
var hashedKeyString = Convert.ToBase64String(hashedKey);
var transactionId = new Pkcs9AttributeObject(Oids.Scep.TransactionId, DerEncoding.EncodePrintableString(hashedKeyString));
signer.SignedAttributes.Add(transactionId);
// Sender Nonce (senderNonce): https://tools.ietf.org/html/draft-nourse-scep-23#section-3.1.1.5
lastSenderNonce = new byte[16];
RNGCryptoServiceProvider.Create().GetBytes(lastSenderNonce);
var nonce = new Pkcs9AttributeObject(Oids.Scep.SenderNonce, DerEncoding.EncodeOctet(lastSenderNonce));
signer.SignedAttributes.Add(nonce);
// Seems that the oid is not needed for this envelope
var signedContent = new ContentInfo(encryptedMessageData); //new Oid("1.2.840.113549.1.7.1", "data"), encryptedMessageData);
var signedMessage = new SignedCms(signedContent);
signedMessage.ComputeSignature(signer);
var encodedMessage = signedMessage.Encode();
return(encodedMessage);
}
/// <summary>
/// Creates <see cref="SignedCms"/> for raw content and a collection of signing certificate
/// </summary>
/// <param name="content">The <c>byte</c> array to sign</param>
/// <param name="signingCertificates">The certificates with which to sign.</param>
/// <returns>An instance of <see cref="SignedCms"/> holdling the signatures</returns>
public SignedCms CreateSignature(byte[] content, X509Certificate2Collection signingCertificates)
{
if (content == null)
{
throw new SignatureException(SignatureError.NullContent);
}
if (signingCertificates == null)
{
throw new SignatureException(SignatureError.NoCertificates);
}
SignedCms signature = new SignedCms(CreateDataContainer(content), true); // true: Detached Signature
for (int i = 0, count = signingCertificates.Count; i < count; ++i)
{
CmsSigner signer = CreateSigner(signingCertificates[i]);
signature.ComputeSignature(signer, true); // true: don't prompt the user
}
return(signature);
}
/// <summary>
/// Crea la firma CMS/PKCS #7
/// </summary>
private static byte[] SignMsg(byte[] Message, SysX509.X509Certificate2 SignerCertificate, bool Detached)
{
//Creamos el contenedor
ContentInfo contentInfo = new ContentInfo(Message);
//Instanciamos el objeto SignedCms con el contenedor
SignedCms objSignedCms = new SignedCms(contentInfo, Detached);
//Creamos el "firmante"
CmsSigner objCmsSigner = new CmsSigner(SignerCertificate);
// Include the following line if the top certificate in the
// smartcard is not in the trusted list.
objCmsSigner.IncludeOption = SysX509.X509IncludeOption.EndCertOnly;
// Sign the CMS/PKCS #7 message. The second argument is
// needed to ask for the pin.
objSignedCms.ComputeSignature(objCmsSigner, false);
//Encodeamos el mensaje CMS/PKCS #7
return(objSignedCms.Encode());
}
public static byte[] SignFile(X509Certificate2 cert, byte[] data)
{
try
{
ContentInfo content = new ContentInfo(data);
SignedCms signedCms = new SignedCms(content, false);
if (VerifySign(data))
{
signedCms.Decode(data);
}
CmsSigner signer = new CmsSigner(cert);
signer.IncludeOption = X509IncludeOption.WholeChain;
signedCms.ComputeSignature(signer);
return(signedCms.Encode());
}
catch (Exception ex)
{
throw new Exception("Erro ao assinar arquivo. A mensagem retornada foi: " + ex.Message);
}
}
// This generates a package with a basic signed CMS.
// The signature MUST NOT have any signed or unsigned attributes.
public static async Task <FileInfo> SignPackageFileWithBasicSignedCmsAsync(
TestDirectory directory,
FileInfo packageFile,
X509Certificate2 certificate)
{
SignatureContent signatureContent;
using (var stream = packageFile.OpenRead())
using (var hashAlgorithm = HashAlgorithmName.SHA256.GetHashProvider())
{
var hash = hashAlgorithm.ComputeHash(stream, leaveStreamOpen: false);
signatureContent = new SignatureContent(SigningSpecifications.V1, HashAlgorithmName.SHA256, Convert.ToBase64String(hash));
}
var signedPackageFile = new FileInfo(Path.Combine(directory, Guid.NewGuid().ToString()));
var cmsSigner = new CmsSigner(certificate)
{
DigestAlgorithm = HashAlgorithmName.SHA256.ConvertToOid(),
IncludeOption = X509IncludeOption.WholeChain
};
var contentInfo = new ContentInfo(signatureContent.GetBytes());
var signature = new SignedCms(contentInfo);
signature.ComputeSignature(cmsSigner);
Assert.Empty(signature.SignerInfos[0].SignedAttributes);
Assert.Empty(signature.SignerInfos[0].UnsignedAttributes);
using (var packageReadStream = packageFile.OpenRead())
using (var packageWriteStream = signedPackageFile.OpenWrite())
using (var package = new SignedPackageArchive(packageReadStream, packageWriteStream))
using (var signatureStream = new MemoryStream(signature.Encode()))
{
await package.AddSignatureAsync(signatureStream, CancellationToken.None);
}
return(signedPackageFile);
}
public static void SignWithImplicitSubjectKeyIdentifier()
{
byte[] contentBytes = { 9, 8, 7, 6, 5 };
ContentInfo contentInfo = new ContentInfo(contentBytes);
SignedCms cms = new SignedCms(contentInfo, false);
using (X509Certificate2 signerCert = Certificates.RSAKeyTransferCapi1.TryGetCertificateWithPrivateKey())
{
// This cert has no Subject Key Identifier extension.
Assert.Null(signerCert.Extensions[Oids.SubjectKeyIdentifier]);
CmsSigner signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, signerCert);
cms.ComputeSignature(signer);
}
Assert.Equal(
"6B4A6B92FDED07EE0119F3674A96D1A70D2A588D",
(string)cms.SignerInfos[0].SignerIdentifier.Value);
// Assert.NoThrow
cms.CheckSignature(true);
}
/// <summary>
/// Encodes the specified ar message. THIS IS FOR THE TEST CHANNEL
/// </summary>
/// <param name="arMessage">The ar message.</param>
/// <param name="signerCert">The signer cert.</param>
/// <param name="signerPassword">The signer password.</param>
/// <returns></returns>
internal static byte[] EncodeMDN(byte[] arMessage, string signerCert, string signerPassword)
{
byte[] signature = null;
try
{
X509Certificate2 cert = new X509Certificate2(signerCert, signerPassword);
ContentInfo contentInfo = new ContentInfo(arMessage);
SignedCms signedCms = new SignedCms(contentInfo, true);
CmsSigner cmsSigner = new CmsSigner(cert);
signedCms.ComputeSignature(cmsSigner);
signature = signedCms.Encode();
}
catch (Exception ex)
{
Log.Error($"Encoding Exception occured : {ex.Message}");
}
return(signature);
}
static void Main(string[] args)
{
var data = Encoding.ASCII.GetBytes("Hi!");
var hash = HashAlgorithm.Create("SHA256").ComputeHash(data);
var certificate = new X509Certificate2(Convert.FromBase64String(cert), pwd);
// So since I've no idea how you got p7s, i improvised here:
var cms = new SignedCms(new ContentInfo(hash), true); // true -> Detached
var signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, certificate);
cms.ComputeSignature(signer);
var data2 = cms.Encode();
// assuming this was in p7s file
var xx = Convert.ToBase64String(data2);
// this passes, this is the .Net validation from OP
var cms2 = new SignedCms(new ContentInfo(hash), true);
cms2.Decode(Convert.FromBase64String(xx));
cms2.CheckSignature(true);
// Same in bouncy castle:
BCUtil.Validate(certificate, hash, xx);
}
/// <summary>
/// Firma mensaje
/// </summary>
/// <param name="argBytesMsg">Bytes del mensaje</param>
/// <param name="argCertFirmante">Certificado usado para firmar</param>
/// <returns>Bytes del mensaje firmado</returns>
/// <remarks></remarks>
public static byte[] FirmaBytesMensaje(byte[] argBytesMsg, X509Certificate2 argCertFirmante)
{
const string ID_FNC = "[FirmaBytesMensaje]";
try
{
// Pongo el mensaje en un objeto ContentInfo (requerido para construir el obj SignedCms)
var infoContenido = new ContentInfo(argBytesMsg);
var cmsFirmado = new SignedCms(infoContenido);
// Creo objeto CmsSigner que tiene las caracteristicas del firmante
var cmsFirmante = new CmsSigner(argCertFirmante)
{
IncludeOption = X509IncludeOption.EndCertOnly
};
if (VerboseMode)
{
Console.WriteLine($@"{ID_FNC}***Firmando bytes del mensaje...");
}
// Firmo el mensaje PKCS #7
cmsFirmado.ComputeSignature(cmsFirmante);
if (VerboseMode)
{
Console.WriteLine($@"{ID_FNC}***OK mensaje firmado");
}
// Encodeo el mensaje PKCS #7.
return(cmsFirmado.Encode());
}
catch (Exception excepcionAlFirmar)
{
throw new Exception($"{ID_FNC}***Error al firmar: {excepcionAlFirmar.Message}");
}
}
private static void VerifyWithExplicitPrivateKey(X509Certificate2 cert, AsymmetricAlgorithm key)
{
using (var pubCert = new X509Certificate2(cert.RawData))
{
Assert.False(pubCert.HasPrivateKey);
byte[] content = { 9, 8, 7, 6, 5 };
ContentInfo contentInfo = new ContentInfo(content);
SignedCms cms = new SignedCms(contentInfo);
CmsSigner signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, pubCert, key)
{
IncludeOption = X509IncludeOption.EndCertOnly,
DigestAlgorithm = new Oid(Oids.Sha1, Oids.Sha1)
};
cms.ComputeSignature(signer);
cms.CheckSignature(true);
Assert.Equal(1, cms.SignerInfos.Count);
Assert.Equal(pubCert, cms.SignerInfos[0].Certificate);
}
}
public async Task <byte[]> Handle(Stream file)
{
var data = await ReadFully(file);
var envelopedCms = new EnvelopedCms(new ContentInfo(data));
envelopedCms.Encrypt(new CmsRecipient(cert));
var encryptedMessage = envelopedCms.Encode();
var signedCms = new SignedCms(new ContentInfo(encryptedMessage));
var signer = new CmsSigner(cert)
{
IncludeOption = X509IncludeOption.EndCertOnly
};
signedCms.ComputeSignature(signer);
var result = signedCms.Encode();
return(result);
}
public byte[] signMessage(byte[] data, X509Certificate2 privateCert)
{
byte[] numArray;
try
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (privateCert == null)
{
throw new ArgumentNullException("privateCertificate");
}
SignedCms signedCm = new SignedCms(new ContentInfo(data));
signedCm.ComputeSignature(new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, privateCert));
numArray = signedCm.Encode();
}
catch (Exception exception)
{
numArray = null;
}
return(numArray);
}
public static void CreateSignature_RsaPadding_DefaultToPkcs1()
{
ContentInfo content = new ContentInfo(new byte[] { 1, 2, 3 });
SignedCms cms = new SignedCms(content);
byte[] cmsBytes;
using (X509Certificate2 cert = Certificates.RSA2048SignatureOnly.TryGetCertificateWithPrivateKey())
{
CmsSigner signer = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, cert, null, null);
cms.ComputeSignature(signer);
cmsBytes = cms.Encode();
}
cms = new SignedCms();
cms.Decode(cmsBytes);
cms.CheckSignature(true); // Assert.NoThrow
Assert.Single(cms.SignerInfos);
SignerInfo signerInfo = cms.SignerInfos[0];
Assert.Equal(Oids.Rsa, signerInfo.SignatureAlgorithm.Value);
}
/// <summary>
/// Generates a cryptographic signature for a given message
/// </summary>
/// <param name="message">The message to sign</param>
/// <param name="signingCertificate">The certificate to sign the message with</param>
/// <param name="encryptionCertificate">An optional encryption certificate to include along with the signature</param>
/// <returns>The signature for the specified message</returns>
internal static byte[] GetSignature(string message, X509Certificate2 signingCertificate, X509Certificate2 encryptionCertificate)
{
byte[] messageBytes = Encoding.ASCII.GetBytes(message);
SignedCms signedCms = new SignedCms(new ContentInfo(messageBytes), true);
CmsSigner cmsSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, signingCertificate);
cmsSigner.IncludeOption = X509IncludeOption.WholeChain;
if (encryptionCertificate != null)
{
cmsSigner.Certificates.Add(encryptionCertificate);
}
Pkcs9SigningTime signingTime = new Pkcs9SigningTime();
cmsSigner.SignedAttributes.Add(signingTime);
signedCms.ComputeSignature(cmsSigner, false);
return(signedCms.Encode());
}
public AsnElt Encode()
{
SignedCms signed = new SignedCms(
new ContentInfo(
IdPkInitAuthData,
AuthPack.Encode().Encode()
)
);
var signer = new CmsSigner(PKCert);
if (!VerifyCerts)
{
signer.IncludeOption = X509IncludeOption.EndCertOnly; // only the end certificate is included in the X.509 chain information.
}
signed.ComputeSignature(signer, silent: false);
return(AsnElt.Make(AsnElt.SEQUENCE, new AsnElt[] {
AsnElt.Make(AsnElt.CONTEXT, 0, new AsnElt[] {
AsnElt.MakeBlob(signed.Encode())
})
}));
}
public static void TryDecode_Fails_MalformedToken()
{
ContentInfo contentInfo = new ContentInfo(
new Oid(Oids.TstInfo, Oids.TstInfo),
new byte[] { 1 });
SignedCms cms = new SignedCms(contentInfo);
using (X509Certificate2 cert = Certificates.RSAKeyTransferCapi1.TryGetCertificateWithPrivateKey())
{
cms.ComputeSignature(new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, cert));
}
Assert.False(
Rfc3161TimestampToken.TryDecode(
cms.Encode(),
out Rfc3161TimestampToken token,
out int bytesRead),
"Rfc3161TimestampToken.TryDecode");
Assert.Equal(0, bytesRead);
Assert.Null(token);
}
//http://stackoverflow.com/questions/11526572/openssl-smime-in-c-sharp
public static void Sign(string basePath)
{
var cert = new X509Certificate2(yourCertFile, yourCertFilePassword);
var buffer = File.ReadAllBytes(Path.Combine(basePath, "manifest.json"));
ContentInfo cont = new ContentInfo(buffer);
var cms = new SignedCms(cont, true);
var signer = new CmsSigner(SubjectIdentifierType.SubjectKeyIdentifier, cert);
signer.IncludeOption = X509IncludeOption.ExcludeRoot;
// TODO: You MUST visit this URL and download/install Apple's certificates
// http://www.apple.com/certificateauthority/
// Apple Inc. Root Certificate
// Apple Computer, Inc. Root Certificate
// Worldwide Developer Relations
cms.ComputeSignature(signer);
var myCmsMessage = cms.Encode();
File.WriteAllBytes(Path.Combine(basePath, "signature"), myCmsMessage);
}
private byte[] Sign(byte[] data, X509Certificate2 signingCert)
{
// create ContentInfo
ContentInfo content = new ContentInfo(data);
// SignedCms represents signed data
SignedCms signedMessage = new SignedCms(content);
// create a signer
CmsSigner signer = new CmsSigner(signingCert);
// sign the data
//Orig:signedMessage.ComputeSignature(signer);
signedMessage.ComputeSignature(signer, false);
// create PKCS #7 byte array
byte[] signedBytes = signedMessage.Encode();
// return signed data
return(signedBytes);
}
public byte[] Sign(string certificateThumbprint, byte[] data, bool detached)
{
var store = new X509Store(StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadOnly);
var certificates = store.Certificates.Find(X509FindType.FindByThumbprint, certificateThumbprint, false);
if (certificates.Count == 0)
{
throw new Exception("Сертификат с отпечатком " + certificateThumbprint + " не найден в хранилище " + store.Location + ". Пользователь " + Environment.UserName);
}
var contentInfo = new ContentInfo(data);
var signedCms = new SignedCms(contentInfo, detached);
var cmsSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, certificates[0]);
cmsSigner.SignedAttributes.Add(new Pkcs9SigningTime(DateTime.Now));
signedCms.ComputeSignature(cmsSigner, true);
return(signedCms.Encode());
}
/// <summary>
/// Firma mensaje
/// </summary>
/// <param name="messageBytes">Bytes del mensaje</param>
/// <param name="signerCertificate">Certificado usado para firmar</param>
/// <returns>Bytes del mensaje firmado</returns>
/// <remarks></remarks>
public static byte[] SignMessageBytes(byte[] messageBytes, X509Certificate2 signerCertificate)
{
const string ID_FNC = "[FirmaBytesMensaje]";
try
{
// Pongo el mensaje en un objeto ContentInfo (requerido para construir el obj SignedCms)
var contentInfo = new ContentInfo(messageBytes);
var signedCms = new SignedCms(contentInfo);
// Creo objeto CmsSigner que tiene las caracteristicas del firmante
var cmsSigner = new CmsSigner(signerCertificate)
{
IncludeOption = X509IncludeOption.EndCertOnly
};
if (VerboseMode)
{
Console.WriteLine(ID_FNC + "***Firmando bytes del mensaje...");
}
// Firmo el mensaje PKCS #7
signedCms.ComputeSignature(cmsSigner);
if (VerboseMode)
{
Console.WriteLine(ID_FNC + "***OK mensaje firmado");
}
// Encodeo el mensaje PKCS #7.
return(signedCms.Encode());
}
catch (Exception ex)
{
throw new Exception(ID_FNC + "***Error al firmar: " + ex.Message);
}
}
private bool signFile(string file, string outFile, string algoritmus, bool detached)
{
try
{
string saveTo = Path.GetDirectoryName(file);
string tmpDir = FastZep.FastZepFolder + "tmp";
if (lbValue == "") {
return false;
}
if (Directory.Exists(tmpDir))
{
Directory.Delete(tmpDir, true);
}
Directory.CreateDirectory(tmpDir);
string date = DateTime.Now.Subtract(TimeSpan.FromHours(1)).ToString("yyyyMMddHHmmss") + "Z";
Directory.CreateDirectory(tmpDir + "\\D" + date + "\\Policy\\");
string certFile = tmpDir + "\\D" + date + "\\Policy\\P" + date + ".der";
string sigFile = tmpDir + "\\D" + date + "\\S" + date + ".p7s";
string emlFile = tmpDir + "\\D" + date + "\\M" + date + ".eml";
Directory.CreateDirectory(tmpDir + "\\D" + date + "\\");
TextWriter eml = new StreamWriter(emlFile);
eml.WriteLine("MIME-Version: 1.0");
eml.WriteLine("Content-Type: " + MimeType(file));
eml.WriteLine("Content-Transfer-Encoding: base64");
eml.WriteLine("Content-Disposition: filename=\"" + Path.GetFileName(file) + "\"");
eml.WriteLine();
FileStream fs = new FileStream(file, FileMode.Open);
byte[] filebytes = new byte[fs.Length];
fs.Read(filebytes, 0, Convert.ToInt32(fs.Length));
string encodedData = Convert.ToBase64String(filebytes, Base64FormattingOptions.InsertLineBreaks);
eml.Write(encodedData);
eml.Close();
fs.Close();
byte[] buffer = File.ReadAllBytes(emlFile);
ContentInfo contentInfo = new ContentInfo(buffer);
X509Store store = new X509Store();
store.Open(OpenFlags.ReadOnly);
X509Certificate2Collection certs = store.Certificates.Find(X509FindType.FindBySerialNumber, lbValue, false);
int i = 0;
foreach (X509Certificate2 cert in certs)
{
i++;
SignedCms signedCms = new SignedCms(SubjectIdentifierType.IssuerAndSerialNumber, contentInfo, !detached);
CmsSigner cmsSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, cert);
cmsSigner.SignedAttributes.Add(new Pkcs9SigningTime());
cmsSigner.IncludeOption = X509IncludeOption.WholeChain;
ESSCertIDv2 cer2 = new ESSCertIDv2(cert);
X509Chain chain = new X509Chain();
chain.Build(cert);
/*
/**/
//cmsSigner.UnsignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.21", CertRefs.get(chain)));
//cmsSigner.UnsignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.22", CertCrls.get(chain)));
//cmsSigner.UnsignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.23", OtherCerts.get(chain)));
//cmsSigner.UnsignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.24", OtherCrls.get(chain)));
/**/
//cmsSigner.SignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.47", cer2.get()));
//cmsSigner.SignedAttributes.Add(new AsnEncodedData("1.2.840.113549.1.9.16.2.15", getPolicy(false)));
/**/
signedCms.ComputeSignature(cmsSigner, false);
File.WriteAllBytes(certFile, getPolicy(true));
File.WriteAllBytes(sigFile, signedCms.Encode());
}
if (i == 0)
{
throw new Exception("Failed" + Marshal.GetLastWin32Error().ToString());
}
SignedCms signedCms2 = new SignedCms();
byte[] encodedMessage = File.ReadAllBytes(sigFile);
signedCms2.Decode(encodedMessage);
BHI.Rats.RatsCompressionManager.Zip(tmpDir, outFile);
Directory.Delete(tmpDir, true);
return true;
}
catch (CryptographicException e)
{
var error = e.Message.ToString();
if (error == "Unknown error \"-1073741275\".") {
error = "Nepodarilo sa načítať certifikát. odpojte a pripojte čítačku.";
}
if (error == "An internal error occurred.\r\n") {
error = "Došlo ku chybe pri podpisovaní. Pravdepodobne nemáte pripojený USB kľúč alebo čítačku kariet.";
}
Console.WriteLine("Signing failed: " + error.ToString());
if (e.InnerException != null)
{
Console.WriteLine("Inner Exception: " + e.InnerException.ToString());
}
MessageBox.Show(error, "Chyba pri podpisovaní", MessageBoxButtons.OK, MessageBoxIcon.Error);
}catch (Exception exc)
{
MessageBox.Show(exc.Message + "\n" + Marshal.GetLastWin32Error().ToString(), "Chyba pri podpisovaní", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return false;
}
/// <summary>
/// Construye un Login Ticket obtenido del WSAA
/// </summary>
/// <param name="argServicio">Servicio al que se desea acceder</param>
/// <param name="argUrlWsaa">URL del WSAA</param>
/// <param name="argRutaCertX509Firmante">Ruta del certificado X509 (con clave privada) usado para firmar</param>
/// <param name="argVerbose">Nivel detallado de descripcion? true/false</param>
/// <remarks></remarks>
public void Obtener(string argServicio, string argUrlWsaa, string argRutaCertX509Firmante, bool argVerbose)
{
RutaDelCertificadoFirmante = argRutaCertX509Firmante;
string cmsFirmadoBase64;
string respuesta;
XmlNode xmlNodoUniqueId;
XmlNode xmlNodoGenerationTime;
XmlNode xmlNodoExpirationTime;
XmlNode xmlNodoService;
// PASO 1: Genero el Login Ticket Request
try {
solicitudXML = new XmlDocument ();
solicitudXML.LoadXml (solicitudPlantillaXML);
xmlNodoUniqueId = solicitudXML.SelectSingleNode ("//uniqueId");
xmlNodoGenerationTime = solicitudXML.SelectSingleNode ("//generationTime");
xmlNodoExpirationTime = solicitudXML.SelectSingleNode ("//expirationTime");
xmlNodoService = solicitudXML.SelectSingleNode ("//service");
var now = DateTime.Now;
xmlNodoGenerationTime.InnerText = now.ToString ("s");
xmlNodoExpirationTime.InnerText = now.AddHours (12).ToString ("s");
xmlNodoUniqueId.InnerText = Convert.ToString (_globalUniqueID);
xmlNodoService.InnerText = Servicio;
_globalUniqueID += 1;
} catch (Exception ex) {
throw new Exception ("Error GENERANDO el Ticket de acceso : " + ex.Message);
}
// PASO 2: Firmo el Login Ticket Request
try {
// Convierto el login ticket request a bytes, para firmar
Encoding EncodedMsg = Encoding.UTF8;
byte[] msgBytes = EncodedMsg.GetBytes (solicitudXML.OuterXml);
byte[] encodedSignedCms;
// Firmo el msg y paso a Base64
try {
var certList = new ArrayList ();
CMSTypedData msg = new CMSProcessableByteArray ("Hello world!".getBytes ());
certList.add (signCert);
Store certs = new JcaCertStore (certList);
var gen = new CMSSignedDataGenerator ();
ContentSigner sha1Signer = new JcaContentSignerBuilder ("SHA1withRSA").setProvider ("BC").build (signKP.getPrivate ());
gen.addSignerInfoGenerator (
new JcaSignerInfoGeneratorBuilder (
new JcaDigestCalculatorProviderBuilder ().setProvider ("BC").build ())
.build (sha1Signer, signCert));
gen.addCertificates (certs);
CMSSignedData sigData = gen.generate (msg, false);
cmsFirmadoBase64 = Convert.ToBase64String (encodedSignedCms);
// Pongo el mensaje en un objeto ContentInfo (requerido para construir el obj SignedCms)
var infoContenido = new System.Security.Cryptography.Pkcs.ContentInfo (msgBytes);
var cmsFirmado = new SignedCms (infoContenido);
// Creo objeto CmsSigner que tiene las caracteristicas del firmante
var cmsFirmante = new CmsSigner (certificadoFirmante);
cmsFirmante.IncludeOption = X509IncludeOption.EndCertOnly;
// Firmo el mensaje PKCS #7
cmsFirmado.ComputeSignature (cmsFirmante);
// Encodeo el mensaje PKCS #7.
encodedSignedCms = cmsFirmado.Encode ();
} catch (Exception excepcionAlFirmar) {
throw new Exception ("***Error al firmar: " + excepcionAlFirmar.Message);
}
} catch (Exception excepcionAlFirmar) {
throw new Exception ("***Error FIRMANDO el LoginTicketRequest : " + excepcionAlFirmar.Message);
}
// PASO 3: Invoco al WSAA para obtener el Login Ticket Response
try {
var wsaa = new WSAA.LoginCMSService ();
respuesta = wsaa.loginCms (cmsFirmadoBase64);
} catch (Exception ex) {
throw new Exception ("Error INVOCANDO al servicio WSAA : " + ex.Message);
}
// PASO 4: Analizo el Login Ticket Response recibido del WSAA
try {
respuestaXML = new XmlDocument ();
respuestaXML.LoadXml (respuesta);
id = UInt32.Parse (respuestaXML.SelectSingleNode ("//uniqueId").InnerText);
generacion = DateTime.Parse (respuestaXML.SelectSingleNode ("//generationTime").InnerText);
expiracion = DateTime.Parse (respuestaXML.SelectSingleNode ("//expirationTime").InnerText);
firma = respuestaXML.SelectSingleNode ("//sign").InnerText;
token = respuestaXML.SelectSingleNode ("//token").InnerText;
} catch (Exception ex) {
throw new Exception ("Error ANALIZANDO el LoginTicketResponse : " + ex.Message);
}
}