internal static unsafe X509Certificate2 CreateDummyCertificate(CspParameters parameters)
{
System.Security.Cryptography.SafeCertContextHandle invalidHandle = System.Security.Cryptography.SafeCertContextHandle.InvalidHandle;
System.Security.Cryptography.SafeCryptProvHandle hCryptProv = System.Security.Cryptography.SafeCryptProvHandle.InvalidHandle;
uint dwFlags = 0;
if ((parameters.Flags & CspProviderFlags.UseMachineKeyStore) != CspProviderFlags.NoFlags)
{
dwFlags |= 0x20;
}
if ((parameters.Flags & CspProviderFlags.UseDefaultKeyContainer) != CspProviderFlags.NoFlags)
{
dwFlags |= 0xf0000000;
}
if ((parameters.Flags & CspProviderFlags.NoPrompt) != CspProviderFlags.NoFlags)
{
dwFlags |= 0x40;
}
if (!System.Security.Cryptography.CAPI.CryptAcquireContext(ref hCryptProv, parameters.KeyContainerName, parameters.ProviderName, (uint)parameters.ProviderType, dwFlags))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO structure = new System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO {
pwszProvName = parameters.ProviderName,
pwszContainerName = parameters.KeyContainerName,
dwProvType = (uint)parameters.ProviderType,
dwKeySpec = (uint)parameters.KeyNumber,
dwFlags = ((parameters.Flags & CspProviderFlags.UseMachineKeyStore) == CspProviderFlags.UseMachineKeyStore) ? 0x20 : 0
};
System.Security.Cryptography.SafeLocalAllocHandle handle3 = System.Security.Cryptography.CAPI.LocalAlloc(0x40, new IntPtr(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO))));
Marshal.StructureToPtr(structure, handle3.DangerousGetHandle(), false);
System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER crypt_algorithm_identifier = new System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER {
pszObjId = "1.3.14.3.2.29"
};
System.Security.Cryptography.SafeLocalAllocHandle handle4 = System.Security.Cryptography.CAPI.LocalAlloc(0x40, new IntPtr(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER))));
Marshal.StructureToPtr(crypt_algorithm_identifier, handle4.DangerousGetHandle(), false);
X500DistinguishedName name = new X500DistinguishedName("cn=CMS Signer Dummy Certificate");
fixed(byte *numRef = name.RawData)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint)name.RawData.Length,
pbData = new IntPtr((void *)numRef)
};
invalidHandle = System.Security.Cryptography.CAPI.CAPIUnsafe.CertCreateSelfSignCertificate(hCryptProv, new IntPtr((void *)&cryptoapi_blob), 1, handle3.DangerousGetHandle(), handle4.DangerousGetHandle(), IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
}
Marshal.DestroyStructure(handle3.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO));
handle3.Dispose();
Marshal.DestroyStructure(handle4.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER));
handle4.Dispose();
if ((invalidHandle == null) || invalidHandle.IsInvalid)
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
X509Certificate2 certificate = new X509Certificate2(invalidHandle.DangerousGetHandle());
invalidHandle.Dispose();
return(certificate);
}
internal static unsafe byte[] EncodeOctetString(byte[] octets)
{
fixed(byte *numRef = octets)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint)octets.Length,
pbData = new IntPtr((void *)numRef)
};
byte[] encodedData = new byte[0];
if (!System.Security.Cryptography.CAPI.EncodeObject(new IntPtr(0x19L), new IntPtr((long)((ulong)((IntPtr) & cryptoapi_blob))), out encodedData))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return(encodedData);
}
}
internal static string DecodeOctetString(byte[] encodedOctetString)
{
uint cbDecodedValue = 0;
System.Security.Cryptography.SafeLocalAllocHandle decodedValue = null;
if (!System.Security.Cryptography.CAPI.DecodeObject(new IntPtr(0x19L), encodedOctetString, out decodedValue, out cbDecodedValue))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (cbDecodedValue == 0)
{
return(string.Empty);
}
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = (System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB)Marshal.PtrToStructure(decodedValue.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB));
if (cryptoapi_blob.cbData == 0)
{
return(string.Empty);
}
string str = Marshal.PtrToStringUni(cryptoapi_blob.pbData);
decodedValue.Dispose();
return(str);
}
internal static unsafe uint AddCertsToMessage(System.Security.Cryptography.SafeCryptMsgHandle safeCryptMsgHandle, X509Certificate2Collection bagOfCerts, X509Certificate2Collection chainOfCerts)
{
uint num = 0;
X509Certificate2Enumerator enumerator = chainOfCerts.GetEnumerator();
while (enumerator.MoveNext())
{
X509Certificate2 current = enumerator.Current;
if (bagOfCerts.Find(X509FindType.FindByThumbprint, current.Thumbprint, false).Count == 0)
{
System.Security.Cryptography.CAPI.CERT_CONTEXT cert_context = *((System.Security.Cryptography.CAPI.CERT_CONTEXT*) System.Security.Cryptography.X509Certificates.X509Utils.GetCertContext(current).DangerousGetHandle());
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = cert_context.cbCertEncoded,
pbData = cert_context.pbCertEncoded
};
if (!System.Security.Cryptography.CAPI.CryptMsgControl(safeCryptMsgHandle, 0, 10, new IntPtr((long) ((ulong) ((IntPtr) &cryptoapi_blob)))))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
num++;
}
}
return num;
}
internal static unsafe uint AddCertsToMessage(System.Security.Cryptography.SafeCryptMsgHandle safeCryptMsgHandle, X509Certificate2Collection bagOfCerts, X509Certificate2Collection chainOfCerts)
{
uint num = 0;
X509Certificate2Enumerator enumerator = chainOfCerts.GetEnumerator();
while (enumerator.MoveNext())
{
X509Certificate2 current = enumerator.Current;
if (bagOfCerts.Find(X509FindType.FindByThumbprint, current.Thumbprint, false).Count == 0)
{
System.Security.Cryptography.CAPI.CERT_CONTEXT cert_context = *((System.Security.Cryptography.CAPI.CERT_CONTEXT *)System.Security.Cryptography.X509Certificates.X509Utils.GetCertContext(current).DangerousGetHandle());
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = cert_context.cbCertEncoded,
pbData = cert_context.pbCertEncoded
};
if (!System.Security.Cryptography.CAPI.CryptMsgControl(safeCryptMsgHandle, 0, 10, new IntPtr((long)((ulong)((IntPtr) & cryptoapi_blob)))))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
num++;
}
}
return(num);
}
internal unsafe SubjectIdentifier(System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB issuer, System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB serialNumber)
{
System.Security.Cryptography.CAPI.CERT_ISSUER_SERIAL_NUMBER cert_issuer_serial_number;
bool flag = true;
byte *pbData = (byte *)serialNumber.pbData;
for (uint i = 0; i < serialNumber.cbData; i++)
{
pbData++;
if (pbData[0] != 0)
{
flag = false;
break;
}
}
if (flag)
{
byte[] destination = new byte[issuer.cbData];
Marshal.Copy(issuer.pbData, destination, 0, destination.Length);
X500DistinguishedName name = new X500DistinguishedName(destination);
if (string.Compare("CN=Dummy Signer", name.Name, StringComparison.OrdinalIgnoreCase) == 0)
{
this.Reset(SubjectIdentifierType.NoSignature, null);
return;
}
}
if (flag)
{
this.m_type = SubjectIdentifierType.SubjectKeyIdentifier;
this.m_value = string.Empty;
uint cbDecodedValue = 0;
System.Security.Cryptography.SafeLocalAllocHandle invalidHandle = System.Security.Cryptography.SafeLocalAllocHandle.InvalidHandle;
if (!System.Security.Cryptography.CAPI.DecodeObject(new IntPtr(7L), issuer.pbData, issuer.cbData, out invalidHandle, out cbDecodedValue))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
using (invalidHandle)
{
System.Security.Cryptography.CAPI.CERT_NAME_INFO cert_name_info = (System.Security.Cryptography.CAPI.CERT_NAME_INFO)Marshal.PtrToStructure(invalidHandle.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CERT_NAME_INFO));
for (uint j = 0; j < cert_name_info.cRDN; j++)
{
System.Security.Cryptography.CAPI.CERT_RDN cert_rdn = (System.Security.Cryptography.CAPI.CERT_RDN)Marshal.PtrToStructure(new IntPtr(((long)cert_name_info.rgRDN) + (j * Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CERT_RDN)))), typeof(System.Security.Cryptography.CAPI.CERT_RDN));
for (uint k = 0; k < cert_rdn.cRDNAttr; k++)
{
System.Security.Cryptography.CAPI.CERT_RDN_ATTR cert_rdn_attr = (System.Security.Cryptography.CAPI.CERT_RDN_ATTR)Marshal.PtrToStructure(new IntPtr(((long)cert_rdn.rgRDNAttr) + (k * Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CERT_RDN_ATTR)))), typeof(System.Security.Cryptography.CAPI.CERT_RDN_ATTR));
if ((string.Compare("1.3.6.1.4.1.311.10.7.1", cert_rdn_attr.pszObjId, StringComparison.OrdinalIgnoreCase) == 0) && (cert_rdn_attr.dwValueType == 2))
{
byte[] buffer2 = new byte[cert_rdn_attr.Value.cbData];
Marshal.Copy(cert_rdn_attr.Value.pbData, buffer2, 0, buffer2.Length);
this.Reset(SubjectIdentifierType.SubjectKeyIdentifier, System.Security.Cryptography.X509Certificates.X509Utils.EncodeHexString(buffer2));
return;
}
}
}
}
throw new CryptographicException(-2146889715);
}
cert_issuer_serial_number.Issuer = issuer;
cert_issuer_serial_number.SerialNumber = serialNumber;
X509IssuerSerial serial = PkcsUtils.DecodeIssuerSerial(cert_issuer_serial_number);
this.Reset(SubjectIdentifierType.IssuerAndSerialNumber, serial);
}
internal AlgorithmIdentifier(System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER algorithmIdentifier)
{
int keyLength = 0;
uint cbDecodedValue = 0;
System.Security.Cryptography.SafeLocalAllocHandle invalidHandle = System.Security.Cryptography.SafeLocalAllocHandle.InvalidHandle;
byte[] destination = new byte[0];
uint num3 = System.Security.Cryptography.X509Certificates.X509Utils.OidToAlgId(algorithmIdentifier.pszObjId);
if (num3 == 0x6602)
{
if (algorithmIdentifier.Parameters.cbData > 0)
{
if (!System.Security.Cryptography.CAPI.DecodeObject(new IntPtr(0x29L), algorithmIdentifier.Parameters.pbData, algorithmIdentifier.Parameters.cbData, out invalidHandle, out cbDecodedValue))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
System.Security.Cryptography.CAPI.CRYPT_RC2_CBC_PARAMETERS crypt_rc_cbc_parameters = (System.Security.Cryptography.CAPI.CRYPT_RC2_CBC_PARAMETERS)Marshal.PtrToStructure(invalidHandle.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPT_RC2_CBC_PARAMETERS));
switch (crypt_rc_cbc_parameters.dwVersion)
{
case 0x34:
keyLength = 0x38;
break;
case 0x3a:
keyLength = 0x80;
break;
case 160:
keyLength = 40;
break;
}
if (crypt_rc_cbc_parameters.fIV)
{
destination = (byte[])crypt_rc_cbc_parameters.rgbIV.Clone();
}
}
}
else if (((num3 == 0x6801) || (num3 == 0x6601)) || (num3 == 0x6603))
{
if (algorithmIdentifier.Parameters.cbData > 0)
{
if (!System.Security.Cryptography.CAPI.DecodeObject(new IntPtr(0x19L), algorithmIdentifier.Parameters.pbData, algorithmIdentifier.Parameters.cbData, out invalidHandle, out cbDecodedValue))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (cbDecodedValue > 0)
{
if (num3 == 0x6801)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = (System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB)Marshal.PtrToStructure(invalidHandle.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB));
if (cryptoapi_blob.cbData > 0)
{
destination = new byte[cryptoapi_blob.cbData];
Marshal.Copy(cryptoapi_blob.pbData, destination, 0, destination.Length);
}
}
else
{
destination = new byte[cbDecodedValue];
Marshal.Copy(invalidHandle.DangerousGetHandle(), destination, 0, destination.Length);
}
}
}
if (num3 == 0x6801)
{
keyLength = 0x80 - (destination.Length * 8);
}
else if (num3 == 0x6601)
{
keyLength = 0x40;
}
else
{
keyLength = 0xc0;
}
}
else if (algorithmIdentifier.Parameters.cbData > 0)
{
destination = new byte[algorithmIdentifier.Parameters.cbData];
Marshal.Copy(algorithmIdentifier.Parameters.pbData, destination, 0, destination.Length);
}
this.Reset(new System.Security.Cryptography.Oid(algorithmIdentifier.pszObjId), keyLength, destination);
invalidHandle.Dispose();
}
internal CRYPT_OID_INFO(int size)
{
this.cbSize = (uint) size;
this.pszOID = null;
this.pwszName = null;
this.dwGroupId = 0;
this.Algid = 0;
this.ExtraInfo = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB();
}
internal CMSG_CTRL_ADD_SIGNER_UNAUTH_ATTR_PARA(int size)
{
this.cbSize = (uint) size;
this.dwSignerIndex = 0;
this.blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB();
}
public static unsafe byte[] Unprotect(byte[] encryptedData, byte[] optionalEntropy, DataProtectionScope scope)
{
byte[] buffer2;
if (encryptedData == null)
{
throw new ArgumentNullException("encryptedData");
}
if (Environment.OSVersion.Platform == PlatformID.Win32Windows)
{
throw new NotSupportedException(SecurityResources.GetResourceString("NotSupported_PlatformRequiresNT"));
}
GCHandle handle = new GCHandle();
GCHandle handle2 = new GCHandle();
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB();
RuntimeHelpers.PrepareConstrainedRegions();
try
{
handle = GCHandle.Alloc(encryptedData, GCHandleType.Pinned);
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob2 = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint)encryptedData.Length,
pbData = handle.AddrOfPinnedObject()
};
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob3 = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB();
if (optionalEntropy != null)
{
handle2 = GCHandle.Alloc(optionalEntropy, GCHandleType.Pinned);
cryptoapi_blob3.cbData = (uint)optionalEntropy.Length;
cryptoapi_blob3.pbData = handle2.AddrOfPinnedObject();
}
uint dwFlags = 1;
if (scope == DataProtectionScope.LocalMachine)
{
dwFlags |= 4;
}
if (!System.Security.Cryptography.CAPI.CryptUnprotectData(new IntPtr((void *)&cryptoapi_blob2), IntPtr.Zero, new IntPtr((void *)&cryptoapi_blob3), IntPtr.Zero, IntPtr.Zero, dwFlags, new IntPtr((void *)&cryptoapi_blob)))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (cryptoapi_blob.pbData == IntPtr.Zero)
{
throw new OutOfMemoryException();
}
byte[] destination = new byte[cryptoapi_blob.cbData];
Marshal.Copy(cryptoapi_blob.pbData, destination, 0, destination.Length);
buffer2 = destination;
}
catch (EntryPointNotFoundException)
{
throw new NotSupportedException(SecurityResources.GetResourceString("NotSupported_PlatformRequiresNT"));
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
if (handle2.IsAllocated)
{
handle2.Free();
}
if (cryptoapi_blob.pbData != IntPtr.Zero)
{
System.Security.Cryptography.CAPI.CAPISafe.ZeroMemory(cryptoapi_blob.pbData, cryptoapi_blob.cbData);
System.Security.Cryptography.CAPI.CAPISafe.LocalFree(cryptoapi_blob.pbData);
}
}
return(buffer2);
}
internal static unsafe byte[] EncodeOctetString(byte[] octets)
{
fixed (byte* numRef = octets)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint) octets.Length,
pbData = new IntPtr((void*) numRef)
};
byte[] encodedData = new byte[0];
if (!System.Security.Cryptography.CAPI.EncodeObject(new IntPtr(0x19L), new IntPtr((long) ((ulong) ((IntPtr) &cryptoapi_blob))), out encodedData))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return encodedData;
}
}
internal static unsafe X509Certificate2 CreateDummyCertificate(CspParameters parameters)
{
System.Security.Cryptography.SafeCertContextHandle invalidHandle = System.Security.Cryptography.SafeCertContextHandle.InvalidHandle;
System.Security.Cryptography.SafeCryptProvHandle hCryptProv = System.Security.Cryptography.SafeCryptProvHandle.InvalidHandle;
uint dwFlags = 0;
if ((parameters.Flags & CspProviderFlags.UseMachineKeyStore) != CspProviderFlags.NoFlags)
{
dwFlags |= 0x20;
}
if ((parameters.Flags & CspProviderFlags.UseDefaultKeyContainer) != CspProviderFlags.NoFlags)
{
dwFlags |= 0xf0000000;
}
if ((parameters.Flags & CspProviderFlags.NoPrompt) != CspProviderFlags.NoFlags)
{
dwFlags |= 0x40;
}
if (!System.Security.Cryptography.CAPI.CryptAcquireContext(ref hCryptProv, parameters.KeyContainerName, parameters.ProviderName, (uint) parameters.ProviderType, dwFlags))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO structure = new System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO {
pwszProvName = parameters.ProviderName,
pwszContainerName = parameters.KeyContainerName,
dwProvType = (uint) parameters.ProviderType,
dwKeySpec = (uint) parameters.KeyNumber,
dwFlags = ((parameters.Flags & CspProviderFlags.UseMachineKeyStore) == CspProviderFlags.UseMachineKeyStore) ? 0x20 : 0
};
System.Security.Cryptography.SafeLocalAllocHandle handle3 = System.Security.Cryptography.CAPI.LocalAlloc(0x40, new IntPtr(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO))));
Marshal.StructureToPtr(structure, handle3.DangerousGetHandle(), false);
System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER crypt_algorithm_identifier = new System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER {
pszObjId = "1.3.14.3.2.29"
};
System.Security.Cryptography.SafeLocalAllocHandle handle4 = System.Security.Cryptography.CAPI.LocalAlloc(0x40, new IntPtr(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER))));
Marshal.StructureToPtr(crypt_algorithm_identifier, handle4.DangerousGetHandle(), false);
X500DistinguishedName name = new X500DistinguishedName("cn=CMS Signer Dummy Certificate");
fixed (byte* numRef = name.RawData)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint) name.RawData.Length,
pbData = new IntPtr((void*) numRef)
};
invalidHandle = System.Security.Cryptography.CAPI.CAPIUnsafe.CertCreateSelfSignCertificate(hCryptProv, new IntPtr((void*) &cryptoapi_blob), 1, handle3.DangerousGetHandle(), handle4.DangerousGetHandle(), IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
}
Marshal.DestroyStructure(handle3.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPT_KEY_PROV_INFO));
handle3.Dispose();
Marshal.DestroyStructure(handle4.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CRYPT_ALGORITHM_IDENTIFIER));
handle4.Dispose();
if ((invalidHandle == null) || invalidHandle.IsInvalid)
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
X509Certificate2 certificate = new X509Certificate2(invalidHandle.DangerousGetHandle());
invalidHandle.Dispose();
return certificate;
}
private unsafe void EncryptContent(CmsRecipientCollection recipients)
{
CMSG_ENCRYPT_PARAM encryptParam = new CMSG_ENCRYPT_PARAM();
if (recipients.Count < 1)
{
throw new CryptographicException(-2146889717);
}
CmsRecipientEnumerator enumerator = recipients.GetEnumerator();
while (enumerator.MoveNext())
{
CmsRecipient current = enumerator.Current;
if (current.Certificate == null)
{
throw new ArgumentNullException(SecurityResources.GetResourceString("Cryptography_Cms_RecipientCertificateNotFound"));
}
if ((PkcsUtils.GetRecipientInfoType(current.Certificate) == RecipientInfoType.KeyAgreement) || (current.RecipientIdentifierType == SubjectIdentifierType.SubjectKeyIdentifier))
{
encryptParam.useCms = true;
}
}
if (!encryptParam.useCms && ((this.Certificates.Count > 0) || (this.UnprotectedAttributes.Count > 0)))
{
encryptParam.useCms = true;
}
if (encryptParam.useCms && !PkcsUtils.CmsSupported())
{
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Cms_Not_Supported"));
}
System.Security.Cryptography.CAPI.CMSG_ENVELOPED_ENCODE_INFO structure = new System.Security.Cryptography.CAPI.CMSG_ENVELOPED_ENCODE_INFO(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CMSG_ENVELOPED_ENCODE_INFO)));
System.Security.Cryptography.SafeLocalAllocHandle handle = System.Security.Cryptography.CAPI.LocalAlloc(0x40, new IntPtr(Marshal.SizeOf(typeof(System.Security.Cryptography.CAPI.CMSG_ENVELOPED_ENCODE_INFO))));
SetCspParams(this.ContentEncryptionAlgorithm, ref encryptParam);
structure.ContentEncryptionAlgorithm.pszObjId = this.ContentEncryptionAlgorithm.Oid.Value;
if ((encryptParam.pvEncryptionAuxInfo != null) && !encryptParam.pvEncryptionAuxInfo.IsInvalid)
{
structure.pvEncryptionAuxInfo = encryptParam.pvEncryptionAuxInfo.DangerousGetHandle();
}
structure.cRecipients = (uint) recipients.Count;
List<System.Security.Cryptography.SafeCertContextHandle> certContexts = null;
if (encryptParam.useCms)
{
SetCmsRecipientParams(recipients, this.Certificates, this.UnprotectedAttributes, this.ContentEncryptionAlgorithm, ref encryptParam);
structure.rgCmsRecipients = encryptParam.rgpRecipients.DangerousGetHandle();
if ((encryptParam.rgCertEncoded != null) && !encryptParam.rgCertEncoded.IsInvalid)
{
structure.cCertEncoded = (uint) this.Certificates.Count;
structure.rgCertEncoded = encryptParam.rgCertEncoded.DangerousGetHandle();
}
if ((encryptParam.rgUnprotectedAttr != null) && !encryptParam.rgUnprotectedAttr.IsInvalid)
{
structure.cUnprotectedAttr = (uint) this.UnprotectedAttributes.Count;
structure.rgUnprotectedAttr = encryptParam.rgUnprotectedAttr.DangerousGetHandle();
}
}
else
{
SetPkcs7RecipientParams(recipients, ref encryptParam, out certContexts);
structure.rgpRecipients = encryptParam.rgpRecipients.DangerousGetHandle();
}
Marshal.StructureToPtr(structure, handle.DangerousGetHandle(), false);
try
{
System.Security.Cryptography.SafeCryptMsgHandle handle2 = System.Security.Cryptography.CAPI.CryptMsgOpenToEncode(0x10001, 0, 3, handle.DangerousGetHandle(), this.ContentInfo.ContentType.Value, IntPtr.Zero);
if ((handle2 == null) || handle2.IsInvalid)
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if ((this.m_safeCryptMsgHandle != null) && !this.m_safeCryptMsgHandle.IsInvalid)
{
this.m_safeCryptMsgHandle.Dispose();
}
this.m_safeCryptMsgHandle = handle2;
}
finally
{
Marshal.DestroyStructure(handle.DangerousGetHandle(), typeof(System.Security.Cryptography.CAPI.CMSG_ENVELOPED_ENCODE_INFO));
handle.Dispose();
}
byte[] encodedData = new byte[0];
if (string.Compare(this.ContentInfo.ContentType.Value, "1.2.840.113549.1.7.1", StringComparison.OrdinalIgnoreCase) == 0)
{
byte[] content = this.ContentInfo.Content;
fixed (byte* numRef = content)
{
System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB cryptoapi_blob = new System.Security.Cryptography.CAPI.CRYPTOAPI_BLOB {
cbData = (uint) content.Length,
pbData = new IntPtr((void*) numRef)
};
if (!System.Security.Cryptography.CAPI.EncodeObject(new IntPtr(0x19L), new IntPtr((void*) &cryptoapi_blob), out encodedData))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
}
else
{
encodedData = this.ContentInfo.Content;
}
if ((encodedData.Length > 0) && !System.Security.Cryptography.CAPI.CAPISafe.CryptMsgUpdate(this.m_safeCryptMsgHandle, encodedData, (uint) encodedData.Length, true))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
GC.KeepAlive(encryptParam);
GC.KeepAlive(recipients);
GC.KeepAlive(certContexts);
}
