private static bool Hmac(
IntPtr key,
IntPtr @in,
IntPtr @out,
IntPtr statusPtr,
int bitness)
{
using (var status = new Status(StatusSafeHandle.FromIntPtr(statusPtr)))
{
try
{
var keyBinary = new Binary(BinarySafeHandle.FromIntPtr(key));
var inBinary = new Binary(BinarySafeHandle.FromIntPtr(@in));
var outBinary = new Binary(BinarySafeHandle.FromIntPtr(@out));
var keyBytes = keyBinary.ToArray();
var inBytes = inBinary.ToArray();
var outBytes = CalculateHash(keyBytes, inBytes, bitness: bitness);
outBinary.WriteBytes(outBytes);
return(true);
}
catch (Exception ex)
{
// let mongocrypt level to handle the error
status.SetStatus(1, ex.Message);
return(false);
}
}
}
public static bool RsaSign(
IntPtr ctx,
IntPtr key,
IntPtr inData,
IntPtr outData,
IntPtr statusPtr)
{
using (var status = new Status(StatusSafeHandle.FromIntPtr(statusPtr)))
{
try
{
var keyBinary = new Binary(BinarySafeHandle.FromIntPtr(key));
var inputBinary = new Binary(BinarySafeHandle.FromIntPtr(inData));
var outBinary = new Binary(BinarySafeHandle.FromIntPtr(outData));
byte[] inputBytes = inputBinary.ToArray();
byte[] keyBytes = keyBinary.ToArray();
// Hash and sign the data.
var signedData = HashAndSignBytes(inputBytes, keyBytes);
outBinary.WriteBytes(signedData);
return(true);
}
catch (Exception e)
{
// let mongocrypt level to handle the error
status.SetStatus(1, e.Message);
return(false);
}
}
}
public static bool GenerateRandom(
IntPtr ctx,
IntPtr @out,
uint count,
IntPtr statusPtr)
{
using (var outBinary = new Binary(BinarySafeHandle.FromIntPtr(@out)))
using (var status = new Status(StatusSafeHandle.FromIntPtr(statusPtr)))
{
try
{
using (var randomNumberGenerator = RandomNumberGenerator.Create())
{
var bytes = new byte[count];
randomNumberGenerator.GetBytes(bytes);
outBinary.WriteBytes(bytes);
return(true);
}
}
catch (Exception e)
{
status.SetStatus(1, e.Message);
return(false);
}
}
}
public static bool Decrypt(
IntPtr ctx,
IntPtr key,
IntPtr iv,
IntPtr @in,
IntPtr @out,
ref uint bytes_written,
IntPtr statusPtr)
{
using (var status = new Status(StatusSafeHandle.FromIntPtr(statusPtr)))
{
try
{
var keyBinary = new Binary(BinarySafeHandle.FromIntPtr(key));
var inputBinary = new Binary(BinarySafeHandle.FromIntPtr(@in));
var outputBinary = new Binary(BinarySafeHandle.FromIntPtr(@out));
var ivBinary = new Binary(BinarySafeHandle.FromIntPtr(iv));
byte[] keyBytes = keyBinary.ToArray();
byte[] ivBytes = ivBinary.ToArray();
byte[] inputBytes = inputBinary.ToArray();
var outputBytes = AesCrypt(keyBytes, ivBytes, inputBytes, CryptMode.Decrypt);
bytes_written = (uint)outputBytes.Length;
outputBinary.WriteBytes(outputBytes);
return(true);
}
catch (Exception e)
{
status.SetStatus(1, e.Message);
return(false);
}
}
}
public static bool Hash(
IntPtr ctx,
IntPtr @in,
IntPtr @out,
IntPtr statusPtr)
{
using (var status = new Status(StatusSafeHandle.FromIntPtr(statusPtr)))
{
try
{
var inputBinary = new Binary(BinarySafeHandle.FromIntPtr(@in));
var outBinary = new Binary(BinarySafeHandle.FromIntPtr(@out));
var outBytes = CalculateHash(inputBinary.ToArray());
outBinary.WriteBytes(outBytes);
return(true);
}
catch (Exception ex)
{
status.SetStatus(1, ex.Message);
return(false);
}
}
}