private unsafe void Sign(CmsSigner signer, bool silent)
{
CAPI.CMSG_SIGNED_ENCODE_INFO signedEncodeInfo = new CAPI.CMSG_SIGNED_ENCODE_INFO(Marshal.SizeOf(typeof(CAPI.CMSG_SIGNED_ENCODE_INFO)));
CAPI.CMSG_SIGNER_ENCODE_INFO signerEncodeInfo = PkcsUtils.CreateSignerEncodeInfo(signer, silent);
byte[] encodedMessage = (byte[])null;
try
{
SafeLocalAllocHandle localAllocHandle = CAPI.LocalAlloc(0U, new IntPtr(Marshal.SizeOf(typeof(CAPI.CMSG_SIGNER_ENCODE_INFO))));
try
{
Marshal.StructureToPtr((object)signerEncodeInfo, localAllocHandle.DangerousGetHandle(), false);
X509Certificate2Collection bagOfCertificates = PkcsUtils.CreateBagOfCertificates(signer);
SafeLocalAllocHandle encodedCertBlob = PkcsUtils.CreateEncodedCertBlob(bagOfCertificates);
signedEncodeInfo.cSigners = 1U;
signedEncodeInfo.rgSigners = localAllocHandle.DangerousGetHandle();
signedEncodeInfo.cCertEncoded = (uint)bagOfCertificates.Count;
if (bagOfCertificates.Count > 0)
{
signedEncodeInfo.rgCertEncoded = encodedCertBlob.DangerousGetHandle();
}
SafeCryptMsgHandle safeCryptMsgHandle = string.Compare(this.ContentInfo.ContentType.Value, "1.2.840.113549.1.7.1", StringComparison.OrdinalIgnoreCase) != 0 ? CAPI.CryptMsgOpenToEncode(65537U, this.Detached ? 4U : 0U, 2U, new IntPtr((void *)&signedEncodeInfo), this.ContentInfo.ContentType.Value, IntPtr.Zero) : CAPI.CryptMsgOpenToEncode(65537U, this.Detached ? 4U : 0U, 2U, new IntPtr((void *)&signedEncodeInfo), IntPtr.Zero, IntPtr.Zero);
if (safeCryptMsgHandle == null || safeCryptMsgHandle.IsInvalid)
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (this.ContentInfo.Content.Length > 0 && !CAPI.CAPISafe.CryptMsgUpdate(safeCryptMsgHandle, this.ContentInfo.pContent, (uint)this.ContentInfo.Content.Length, true))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
encodedMessage = PkcsUtils.GetContent(safeCryptMsgHandle);
safeCryptMsgHandle.Dispose();
encodedCertBlob.Dispose();
}
finally
{
Marshal.DestroyStructure(localAllocHandle.DangerousGetHandle(), typeof(CAPI.CMSG_SIGNER_ENCODE_INFO));
localAllocHandle.Dispose();
}
}
finally
{
signerEncodeInfo.Dispose();
}
SafeCryptMsgHandle safeCryptMsgHandle1 = SignedCms.OpenToDecode(encodedMessage, this.ContentInfo, this.Detached);
if (this.m_safeCryptMsgHandle != null && !this.m_safeCryptMsgHandle.IsInvalid)
{
this.m_safeCryptMsgHandle.Dispose();
}
this.m_safeCryptMsgHandle = safeCryptMsgHandle1;
GC.KeepAlive((object)signer);
}
internal static Oid GetContentType(SafeCryptMsgHandle safeCryptMsgHandle)
{
uint cbData = 0U;
byte[] pvData = new byte[0];
PkcsUtils.GetParam(safeCryptMsgHandle, 4U, 0U, out pvData, out cbData);
if (pvData.Length > 0 && (int)pvData[pvData.Length - 1] == 0)
{
byte[] numArray = new byte[pvData.Length - 1];
Array.Copy((Array)pvData, 0, (Array)numArray, 0, numArray.Length);
pvData = numArray;
}
return(new Oid(Encoding.ASCII.GetString(pvData)));
}
public static Oid GetContentType(byte[] encodedMessage)
{
if (encodedMessage == null)
{
throw new ArgumentNullException("encodedMessage");
}
SafeCryptMsgHandle safeCryptMsgHandle = CAPI.CAPISafe.CryptMsgOpenToDecode(65537U, 0U, 0U, IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);
if (safeCryptMsgHandle == null || safeCryptMsgHandle.IsInvalid)
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (!CAPI.CAPISafe.CryptMsgUpdate(safeCryptMsgHandle, encodedMessage, (uint)encodedMessage.Length, true))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
Oid oid;
switch (PkcsUtils.GetMessageType(safeCryptMsgHandle))
{
case 1U:
oid = new Oid("1.2.840.113549.1.7.1");
break;
case 2U:
oid = new Oid("1.2.840.113549.1.7.2");
break;
case 3U:
oid = new Oid("1.2.840.113549.1.7.3");
break;
case 4U:
oid = new Oid("1.2.840.113549.1.7.4");
break;
case 5U:
oid = new Oid("1.2.840.113549.1.7.5");
break;
case 6U:
oid = new Oid("1.2.840.113549.1.7.6");
break;
default:
throw new CryptographicException(-2146889724);
}
safeCryptMsgHandle.Dispose();
return(oid);
}
public void Decode(byte[] encodedMessage)
{
if (encodedMessage == null)
{
throw new ArgumentNullException("encodedMessage");
}
if (this.m_safeCryptMsgHandle != null && !this.m_safeCryptMsgHandle.IsInvalid)
{
this.m_safeCryptMsgHandle.Dispose();
}
this.m_safeCryptMsgHandle = SignedCms.OpenToDecode(encodedMessage, this.ContentInfo, this.Detached);
if (this.Detached)
{
return;
}
this.m_contentInfo = new ContentInfo(PkcsUtils.GetContentType(this.m_safeCryptMsgHandle), PkcsUtils.GetContent(this.m_safeCryptMsgHandle));
}
public SignedCms(SubjectIdentifierType signerIdentifierType, ContentInfo contentInfo, bool detached)
{
if (contentInfo == null)
{
throw new ArgumentNullException("contentInfo");
}
if (contentInfo.Content == null)
{
throw new ArgumentNullException("contentInfo.Content");
}
if (signerIdentifierType != SubjectIdentifierType.SubjectKeyIdentifier && signerIdentifierType != SubjectIdentifierType.IssuerAndSerialNumber && signerIdentifierType != SubjectIdentifierType.NoSignature)
{
signerIdentifierType = SubjectIdentifierType.IssuerAndSerialNumber;
}
this.m_safeCryptMsgHandle = SafeCryptMsgHandle.InvalidHandle;
this.m_signerIdentifierType = signerIdentifierType;
this.m_version = 0;
this.m_contentInfo = contentInfo;
this.m_detached = detached;
}
internal static unsafe void GetParam(SafeCryptMsgHandle safeCryptMsgHandle, uint paramType, uint index, out SafeLocalAllocHandle pvData, out uint cbData)
{
cbData = 0U;
pvData = SafeLocalAllocHandle.InvalidHandle;
fixed(uint *numPtr = &cbData)
{
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, paramType, index, pvData, new IntPtr((void *)numPtr)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
if (cbData > 0U)
{
pvData = CAPI.LocalAlloc(64U, new IntPtr((long)cbData));
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, paramType, index, pvData, new IntPtr((void *)numPtr)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
}
}
}
internal static unsafe AlgorithmIdentifier GetAlgorithmIdentifier(SafeCryptMsgHandle safeCryptMsgHandle)
{
AlgorithmIdentifier algorithmIdentifier = new AlgorithmIdentifier();
uint num = 0U;
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 15U, 0U, IntPtr.Zero, new IntPtr((void *)&num)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
if (num > 0U)
{
SafeLocalAllocHandle pvData = CAPI.LocalAlloc(0U, new IntPtr((long)num));
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 15U, 0U, pvData, new IntPtr((void *)&num)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
algorithmIdentifier = new AlgorithmIdentifier((CAPI.CRYPT_ALGORITHM_IDENTIFIER)Marshal.PtrToStructure(pvData.DangerousGetHandle(), typeof(CAPI.CRYPT_ALGORITHM_IDENTIFIER)));
pvData.Dispose();
}
return(algorithmIdentifier);
}
internal static unsafe uint AddCertsToMessage(SafeCryptMsgHandle safeCryptMsgHandle, X509Certificate2Collection bagOfCerts, X509Certificate2Collection chainOfCerts)
{
uint num = 0U;
foreach (X509Certificate2 certificate in chainOfCerts)
{
if (bagOfCerts.Find(X509FindType.FindByThumbprint, (object)certificate.Thumbprint, false).Count == 0)
{
CAPI.CERT_CONTEXT certContext = *(CAPI.CERT_CONTEXT *)(void *) X509Utils.GetCertContext(certificate).DangerousGetHandle();
if (!CAPI.CryptMsgControl(safeCryptMsgHandle, 0U, 10U, new IntPtr((long)&new CAPI.CRYPTOAPI_BLOB()
{
cbData = certContext.cbCertEncoded,
pbData = certContext.pbCertEncoded
})))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
++num;
}
}
return(num);
}
internal static unsafe void GetParam(SafeCryptMsgHandle safeCryptMsgHandle, uint paramType, uint index, out byte[] pvData, out uint cbData)
{
cbData = 0U;
pvData = new byte[0];
fixed(uint *numPtr1 = &cbData)
{
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, paramType, index, IntPtr.Zero, new IntPtr((void *)numPtr1)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
if (cbData > 0U)
{
pvData = new byte[(IntPtr)cbData];
fixed(byte *numPtr2 = &pvData[0])
{
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, paramType, index, new IntPtr((void *)numPtr2), new IntPtr((void *)numPtr1)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
}
}
}
}
internal RecipientInfoCollection()
{
this.m_safeCryptMsgHandle = SafeCryptMsgHandle.InvalidHandle;
this.m_recipientInfos = new ArrayList();
}
internal RecipientInfoCollection(SafeCryptMsgHandle safeCryptMsgHandle)
{
bool flag = PkcsUtils.CmsSupported();
uint num1 = 0U;
uint num2 = (uint)Marshal.SizeOf(typeof(uint));
if (flag)
{
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 33U, 0U, new IntPtr((void *)&num1), new IntPtr((void *)&num2)))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
else if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 17U, 0U, new IntPtr((void *)&num1), new IntPtr((void *)&num2)))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
this.m_recipientInfos = new ArrayList();
for (uint index = 0U; index < num1; ++index)
{
if (flag)
{
SafeLocalAllocHandle pvData;
uint cbData;
PkcsUtils.GetParam(safeCryptMsgHandle, 36U, index, out pvData, out cbData);
CAPI.CMSG_CMS_RECIPIENT_INFO cmsRecipientInfo = (CAPI.CMSG_CMS_RECIPIENT_INFO)Marshal.PtrToStructure(pvData.DangerousGetHandle(), typeof(CAPI.CMSG_CMS_RECIPIENT_INFO));
switch (cmsRecipientInfo.dwRecipientChoice)
{
case 1U:
CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO keyTrans = (CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO));
this.m_recipientInfos.Add((object)new KeyTransRecipientInfo(pvData, keyTrans, index));
continue;
case 2U:
CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO agreeRecipientInfo = (CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO));
switch (agreeRecipientInfo.dwOriginatorChoice)
{
case 1U:
CAPI.CMSG_KEY_AGREE_CERT_ID_RECIPIENT_INFO certIdRecipient = (CAPI.CMSG_KEY_AGREE_CERT_ID_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_AGREE_CERT_ID_RECIPIENT_INFO));
for (uint subIndex = 0U; subIndex < certIdRecipient.cRecipientEncryptedKeys; ++subIndex)
{
this.m_recipientInfos.Add((object)new KeyAgreeRecipientInfo(pvData, certIdRecipient, index, subIndex));
}
continue;
case 2U:
CAPI.CMSG_KEY_AGREE_PUBLIC_KEY_RECIPIENT_INFO publicKeyRecipient = (CAPI.CMSG_KEY_AGREE_PUBLIC_KEY_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_AGREE_PUBLIC_KEY_RECIPIENT_INFO));
for (uint subIndex = 0U; subIndex < publicKeyRecipient.cRecipientEncryptedKeys; ++subIndex)
{
this.m_recipientInfos.Add((object)new KeyAgreeRecipientInfo(pvData, publicKeyRecipient, index, subIndex));
}
continue;
default:
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Cms_Invalid_Originator_Identifier_Choice"), agreeRecipientInfo.dwOriginatorChoice.ToString((IFormatProvider)CultureInfo.CurrentCulture));
}
default:
throw new CryptographicException(-2147483647);
}
}
else
{
SafeLocalAllocHandle pvData;
uint cbData;
PkcsUtils.GetParam(safeCryptMsgHandle, 19U, index, out pvData, out cbData);
CAPI.CERT_INFO certInfo = (CAPI.CERT_INFO)Marshal.PtrToStructure(pvData.DangerousGetHandle(), typeof(CAPI.CERT_INFO));
this.m_recipientInfos.Add((object)new KeyTransRecipientInfo(pvData, certInfo, index));
}
}
this.m_safeCryptMsgHandle = safeCryptMsgHandle;
}
internal RecipientInfoCollection(RecipientInfo recipientInfo)
{
this.m_safeCryptMsgHandle = SafeCryptMsgHandle.InvalidHandle;
this.m_recipientInfos = new ArrayList(1);
this.m_recipientInfos.Add((object)recipientInfo);
}
private unsafe void RemoveCounterSignature(int parentIndex, int childIndex)
{
if (parentIndex < 0)
{
throw new ArgumentOutOfRangeException("parentIndex");
}
if (childIndex < 0)
{
throw new ArgumentOutOfRangeException("childIndex");
}
uint cbData1 = 0U;
SafeLocalAllocHandle pvData1 = SafeLocalAllocHandle.InvalidHandle;
uint cbData2 = 0U;
SafeLocalAllocHandle pvData2 = SafeLocalAllocHandle.InvalidHandle;
IntPtr num1 = IntPtr.Zero;
SafeCryptMsgHandle cryptMsgHandle = this.m_signedCms.GetCryptMsgHandle();
uint num2;
if (PkcsUtils.CmsSupported())
{
PkcsUtils.GetParam(cryptMsgHandle, 39U, (uint)parentIndex, out pvData1, out cbData1);
CAPI.CMSG_CMS_SIGNER_INFO cmsgCmsSignerInfo = (CAPI.CMSG_CMS_SIGNER_INFO)Marshal.PtrToStructure(pvData1.DangerousGetHandle(), typeof(CAPI.CMSG_CMS_SIGNER_INFO));
num2 = cmsgCmsSignerInfo.UnauthAttrs.cAttr;
num1 = new IntPtr((long)cmsgCmsSignerInfo.UnauthAttrs.rgAttr);
}
else
{
PkcsUtils.GetParam(cryptMsgHandle, 6U, (uint)parentIndex, out pvData2, out cbData2);
CAPI.CMSG_SIGNER_INFO cmsgSignerInfo = (CAPI.CMSG_SIGNER_INFO)Marshal.PtrToStructure(pvData2.DangerousGetHandle(), typeof(CAPI.CMSG_SIGNER_INFO));
num2 = cmsgSignerInfo.UnauthAttrs.cAttr;
num1 = new IntPtr((long)cmsgSignerInfo.UnauthAttrs.rgAttr);
}
for (uint index = 0U; index < num2; ++index)
{
CAPI.CRYPT_ATTRIBUTE cryptAttribute1 = (CAPI.CRYPT_ATTRIBUTE)Marshal.PtrToStructure(num1, typeof(CAPI.CRYPT_ATTRIBUTE));
if (string.Compare(cryptAttribute1.pszObjId, "1.2.840.113549.1.9.6", StringComparison.OrdinalIgnoreCase) == 0 && cryptAttribute1.cValue > 0U)
{
if (childIndex < (int)cryptAttribute1.cValue)
{
if (!CAPI.CryptMsgControl(cryptMsgHandle, 0U, 9U, new IntPtr((void *)&new CAPI.CMSG_CTRL_DEL_SIGNER_UNAUTH_ATTR_PARA(Marshal.SizeOf(typeof(CAPI.CMSG_CTRL_DEL_SIGNER_UNAUTH_ATTR_PARA)))
{
dwSignerIndex = (uint)parentIndex,
dwUnauthAttrIndex = index
})))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
if (cryptAttribute1.cValue <= 1U)
{
return;
}
try
{
SafeLocalAllocHandle localAllocHandle1 = CAPI.LocalAlloc(64U, new IntPtr((long)(uint)((ulong)(cryptAttribute1.cValue - 1U) * (ulong)Marshal.SizeOf(typeof(CAPI.CRYPTOAPI_BLOB)))));
CAPI.CRYPTOAPI_BLOB *cryptoapiBlobPtr1 = (CAPI.CRYPTOAPI_BLOB *)(void *) cryptAttribute1.rgValue;
CAPI.CRYPTOAPI_BLOB *cryptoapiBlobPtr2 = (CAPI.CRYPTOAPI_BLOB *)(void *) localAllocHandle1.DangerousGetHandle();
int num3 = 0;
while (num3 < (int)cryptAttribute1.cValue)
{
if (num3 != childIndex)
{
*cryptoapiBlobPtr2 = *cryptoapiBlobPtr1;
}
++num3;
++cryptoapiBlobPtr1;
++cryptoapiBlobPtr2;
}
CAPI.CRYPT_ATTRIBUTE cryptAttribute2 = new CAPI.CRYPT_ATTRIBUTE();
cryptAttribute2.pszObjId = cryptAttribute1.pszObjId;
cryptAttribute2.cValue = cryptAttribute1.cValue - 1U;
cryptAttribute2.rgValue = localAllocHandle1.DangerousGetHandle();
SafeLocalAllocHandle localAllocHandle2 = CAPI.LocalAlloc(64U, new IntPtr(Marshal.SizeOf(typeof(CAPI.CRYPT_ATTRIBUTE))));
Marshal.StructureToPtr((object)cryptAttribute2, localAllocHandle2.DangerousGetHandle(), false);
byte[] encodedData;
try
{
if (!CAPI.EncodeObject(new IntPtr(22L), localAllocHandle2.DangerousGetHandle(), out encodedData))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
finally
{
Marshal.DestroyStructure(localAllocHandle2.DangerousGetHandle(), typeof(CAPI.CRYPT_ATTRIBUTE));
localAllocHandle2.Dispose();
}
fixed(byte *numPtr = &encodedData[0])
{
if (!CAPI.CryptMsgControl(cryptMsgHandle, 0U, 8U, new IntPtr((void *)&new CAPI.CMSG_CTRL_ADD_SIGNER_UNAUTH_ATTR_PARA(Marshal.SizeOf(typeof(CAPI.CMSG_CTRL_ADD_SIGNER_UNAUTH_ATTR_PARA)))
{
dwSignerIndex = (uint)parentIndex,
blob =
{
cbData = (uint)encodedData.Length,
pbData = new IntPtr((void *)numPtr)
}
})))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
localAllocHandle1.Dispose();
return;
}
catch (CryptographicException ex)
{
byte[] encodedData;
if (CAPI.EncodeObject(new IntPtr(22L), num1, out encodedData))
{
fixed(byte *numPtr = &encodedData[0])
CAPI.CryptMsgControl(cryptMsgHandle, 0U, 8U, new IntPtr((void *)&new CAPI.CMSG_CTRL_ADD_SIGNER_UNAUTH_ATTR_PARA(Marshal.SizeOf(typeof(CAPI.CMSG_CTRL_ADD_SIGNER_UNAUTH_ATTR_PARA)))
{
dwSignerIndex = (uint)parentIndex,
blob =
{
cbData = (uint)encodedData.Length,
pbData = new IntPtr((void *)numPtr)
}
}));
}
throw;
}
}
else
{
childIndex -= (int)cryptAttribute1.cValue;
}
}
num1 = new IntPtr((long)num1 + (long)Marshal.SizeOf(typeof(CAPI.CRYPT_ATTRIBUTE)));
}
if (pvData1 != null && !pvData1.IsInvalid)
{
pvData1.Dispose();
}
if (pvData2 != null && !pvData2.IsInvalid)
{
pvData2.Dispose();
}
throw new CryptographicException(-2146885618);
}
protected override bool ReleaseHandle()
{
return(SafeCryptMsgHandle.CryptMsgClose(this.handle));
}
internal static unsafe CryptographicAttributeObjectCollection GetUnprotectedAttributes(SafeCryptMsgHandle safeCryptMsgHandle)
{
uint num = 0U;
CryptographicAttributeObjectCollection objectCollection = new CryptographicAttributeObjectCollection();
SafeLocalAllocHandle invalidHandle = SafeLocalAllocHandle.InvalidHandle;
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 37U, 0U, invalidHandle, new IntPtr((void *)&num)) && Marshal.GetLastWin32Error() != -2146889713)
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
if (num > 0U)
{
SafeLocalAllocHandle localAllocHandle;
using (localAllocHandle = CAPI.LocalAlloc(64U, new IntPtr((long)num)))
{
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle, 37U, 0U, localAllocHandle, new IntPtr((void *)&num)))
{
PkcsUtils.checkErr(Marshal.GetLastWin32Error());
}
objectCollection = new CryptographicAttributeObjectCollection(localAllocHandle);
}
}
return(objectCollection);
}
