public unsafe void SetPeerKey(ReadableBuffer peerKey)
{
GenerateKeys(null, null);
if (peerKey.Length != _keyExchangeSize)
{
Alerts.AlertException.ThrowAlert(Alerts.AlertLevel.Fatal, Alerts.AlertDescription.illegal_parameter, "The client key didn't match the expected size");
}
GCHandle handle = default(GCHandle);
try
{
void *ptr;
if (peerKey.IsSingleSpan)
{
ptr = peerKey.First.GetPointer(out handle);
}
else
{
var sBuffer = stackalloc byte[peerKey.Length];
peerKey.CopyTo(new Span <byte>(sBuffer, peerKey.Length));
ptr = sBuffer;
}
_clientBN = BN_bin2bn(ptr, peerKey.Length, IntPtr.Zero);
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
_hasPeerKey = true;
}
public static unsafe int BN_bn2binpad(BIGNUM a, Span <byte> buffer)
{
fixed(void *ptr = &buffer.DangerousGetPinnableReference())
{
return(BN_bn2binpad(a, ptr, buffer.Length));
}
}
public static unsafe int DH_compute_key(Span <byte> key, BIGNUM pub_key, DH dh)
{
fixed(void *ptr = &key.DangerousGetPinnableReference())
{
return(Internal_DH_compute_key(ptr, pub_key, dh));
}
}
internal static extern void DH_get0_key(DH dh, out BIGNUM pub_key, out BIGNUM priv_key);
private static extern unsafe int BN_bn2binpad(BIGNUM a, void *to, int tolen);
public static void DH_set0_key(DH dh, BIGNUM pub_key, BIGNUM priv_key)
{
var result = Internal_DH_set0_key(dh, pub_key, priv_key);
ThrowOnErrorReturnCode(result);
}
private static extern int Internal_DH_set0_key(DH dh, BIGNUM pub_key, BIGNUM priv_key);
public static void DH_set0_pqg(DH dh, BIGNUM p, BIGNUM q, BIGNUM g)
{
var result = Internal_DH_set0_pqg(dh, p, q, g);
ThrowOnErrorReturnCode(result);
}
private static extern int Internal_DH_set0_pqg(DH dh, BIGNUM p, BIGNUM q, BIGNUM g);
internal static extern int DH_set0_pqg(DH dh, BIGNUM p, BIGNUM q, BIGNUM g);
internal static extern unsafe int DH_compute_key(byte *key, BIGNUM pub_key, DH dh);
internal static extern int DH_set0_key(DH dh, BIGNUM pub_key, BIGNUM priv_key);
private static extern unsafe int Internal_DH_compute_key(void *key, BIGNUM pub_key, DH dh);
public unsafe KeyshareProvider()
{
byte val = 2;
_numberTwo = BN_bin2bn(&val, 1, IntPtr.Zero);
}
