internal static byte[] EncryptMessage(
SecHandle context,
SecurityQualityOfProtectionFlags flags,
IEnumerable <SecurityBuffer> messages,
int sequence_no)
{
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
if (messages is null)
{
throw new ArgumentNullException(nameof(messages));
}
List <SecurityBuffer> sig_buffers = new List <SecurityBuffer>(messages);
var sizes = QueryContextAttribute <SecPkgContext_Sizes>(context, SECPKG_ATTR.SIZES);
var out_sig_buffer = new SecurityBufferOut(SecurityBufferType.Token, sizes.cbSecurityTrailer);
sig_buffers.Add(out_sig_buffer);
using (var list = new DisposableList())
{
var buffers = sig_buffers.ToBufferList(list);
var desc = buffers.ToDesc(list);
SecurityNativeMethods.EncryptMessage(context, flags, desc, sequence_no).CheckResult();
sig_buffers.UpdateBuffers(desc);
return(out_sig_buffer.ToArray());
}
}
internal static byte[] MakeSignature(
SecHandle context,
int flags,
IEnumerable <SecurityBuffer> messages,
int sequence_no)
{
int max_sig_size = QueryContextAttribute <SecPkgContext_Sizes>(context, SECPKG_ATTR.SIZES).cbMaxSignature;
List <SecurityBuffer> sig_buffers = new List <SecurityBuffer>(messages);
SecurityBufferOut signature_buffer = new SecurityBufferOut(SecurityBufferType.Token, max_sig_size);
sig_buffers.Add(signature_buffer);
using (var list = new DisposableList())
{
List <SecBuffer> buffers = sig_buffers.ToBufferList(list);
SecBufferDesc desc = buffers.ToDesc(list);
SecurityNativeMethods.MakeSignature(context, flags, desc, sequence_no).CheckResult();
sig_buffers.UpdateBuffers(desc);
return(signature_buffer.ToArray());
}
}
internal static byte[] EncryptMessage(
SecHandle context,
SecurityQualityOfProtectionFlags flags,
IEnumerable <SecurityBuffer> messages,
int sequence_no)
{
if (context is null)
{
throw new ArgumentNullException(nameof(context));
}
if (messages is null)
{
throw new ArgumentNullException(nameof(messages));
}
List <SecurityBuffer> sig_buffers = new List <SecurityBuffer>(messages);
var out_sig_buffer = new SecurityBufferOut(SecurityBufferType.Token, GetSecurityTrailerSize(context));
sig_buffers.Add(out_sig_buffer);
EncryptMessageNoSignature(context, flags, sig_buffers, sequence_no);
return(out_sig_buffer.ToArray());
}
