internal KeyAgreeRecipientInfo(SafeLocalAllocHandle pRecipientInfo, CAPI.CMSG_KEY_AGREE_PUBLIC_KEY_RECIPIENT_INFO publicKeyRecipient, uint index, uint subIndex) : base(RecipientInfoType.KeyAgreement, RecipientSubType.PublicKeyAgreement, pRecipientInfo, publicKeyRecipient, index)
{
checked {
IntPtr pEncryptedKeyInfo = Marshal.ReadIntPtr(new IntPtr((long)publicKeyRecipient.rgpRecipientEncryptedKeys + (long)(subIndex * Marshal.SizeOf(typeof(IntPtr)))));
CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO encryptedKeyInfo = (CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO)Marshal.PtrToStructure(pEncryptedKeyInfo, typeof(CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO));
Reset(CAPI.CMSG_KEY_AGREE_ORIGINATOR_PUBLIC_KEY, publicKeyRecipient.dwVersion, encryptedKeyInfo, subIndex);
}
}
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 unsafe RecipientInfoCollection(SafeCryptMsgHandle safeCryptMsgHandle)
{
bool cmsSupported = PkcsUtils.CmsSupported();
uint dwRecipients = 0;
uint cbCount = (uint)Marshal.SizeOf(typeof(uint));
// Use CMS if supported.
if (cmsSupported)
{
// CMS.
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle,
CAPI.CMSG_CMS_RECIPIENT_COUNT_PARAM,
0,
new IntPtr(&dwRecipients),
new IntPtr(&cbCount)))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
else
{
// PKCS7.
if (!CAPI.CAPISafe.CryptMsgGetParam(safeCryptMsgHandle,
CAPI.CMSG_RECIPIENT_COUNT_PARAM,
0,
new IntPtr(&dwRecipients),
new IntPtr(&cbCount)))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
}
m_recipientInfos = new ArrayList();
for (uint index = 0; index < dwRecipients; index++)
{
if (cmsSupported)
{
uint cbCmsRecipientInfo;
SafeLocalAllocHandle pbCmsRecipientInfo;
PkcsUtils.GetParam(safeCryptMsgHandle, CAPI.CMSG_CMS_RECIPIENT_INFO_PARAM, index, out pbCmsRecipientInfo, out cbCmsRecipientInfo);
CAPI.CMSG_CMS_RECIPIENT_INFO cmsRecipientInfo = (CAPI.CMSG_CMS_RECIPIENT_INFO)Marshal.PtrToStructure(pbCmsRecipientInfo.DangerousGetHandle(), typeof(CAPI.CMSG_CMS_RECIPIENT_INFO));
switch (cmsRecipientInfo.dwRecipientChoice)
{
case CAPI.CMSG_KEY_TRANS_RECIPIENT:
CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO keyTrans = (CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_TRANS_RECIPIENT_INFO));
m_recipientInfos.Add(new KeyTransRecipientInfo(pbCmsRecipientInfo, keyTrans, index));
break;
case CAPI.CMSG_KEY_AGREE_RECIPIENT:
CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO keyAgree = (CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO)Marshal.PtrToStructure(cmsRecipientInfo.pRecipientInfo, typeof(CAPI.CMSG_KEY_AGREE_RECIPIENT_INFO));
switch (keyAgree.dwOriginatorChoice)
{
case CAPI.CMSG_KEY_AGREE_ORIGINATOR_CERT:
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 cRecipient = 0; cRecipient < certIdRecipient.cRecipientEncryptedKeys; cRecipient++)
{
m_recipientInfos.Add(new KeyAgreeRecipientInfo(pbCmsRecipientInfo, certIdRecipient, index, cRecipient));
}
break;
case CAPI.CMSG_KEY_AGREE_ORIGINATOR_PUBLIC_KEY:
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 cRecipient = 0; cRecipient < publicKeyRecipient.cRecipientEncryptedKeys; cRecipient++)
{
m_recipientInfos.Add(new KeyAgreeRecipientInfo(pbCmsRecipientInfo, publicKeyRecipient, index, cRecipient));
}
break;
default:
throw new CryptographicException(SecurityResources.GetResourceString("Cryptography_Cms_Invalid_Originator_Identifier_Choice"), keyAgree.dwOriginatorChoice.ToString(CultureInfo.CurrentCulture));
}
break;
default:
throw new CryptographicException(CAPI.E_NOTIMPL);
}
}
else
{
uint cbCertInfo;
SafeLocalAllocHandle pbCertInfo;
PkcsUtils.GetParam(safeCryptMsgHandle, CAPI.CMSG_RECIPIENT_INFO_PARAM, index, out pbCertInfo, out cbCertInfo);
CAPI.CERT_INFO certInfo = (CAPI.CERT_INFO)Marshal.PtrToStructure(pbCertInfo.DangerousGetHandle(), typeof(CAPI.CERT_INFO));
m_recipientInfos.Add(new KeyTransRecipientInfo(pbCertInfo, certInfo, index));
}
}
m_safeCryptMsgHandle = safeCryptMsgHandle;
}
internal KeyAgreeRecipientInfo(SafeLocalAllocHandle pRecipientInfo, CAPI.CMSG_KEY_AGREE_PUBLIC_KEY_RECIPIENT_INFO publicKeyRecipient, uint index, uint subIndex)
: base(RecipientInfoType.KeyAgreement, RecipientSubType.PublicKeyAgreement, pRecipientInfo, (object)publicKeyRecipient, index)
{
CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO encryptedKeyInfo = (CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO)Marshal.PtrToStructure(Marshal.ReadIntPtr(new IntPtr((long)publicKeyRecipient.rgpRecipientEncryptedKeys + (long)subIndex * (long)Marshal.SizeOf(typeof(IntPtr)))), typeof(CAPI.CMSG_RECIPIENT_ENCRYPTED_KEY_INFO));
this.Reset(2U, publicKeyRecipient.dwVersion, encryptedKeyInfo, subIndex);
}
