public static SecurityStatusPal EncryptMessage(
SafeDeleteContext securityContext,
ReadOnlyMemory <byte> input,
int headerSize,
int trailerSize,
ref byte[] output,
out int resultSize)
{
resultSize = 0;
Debug.Assert(input.Length > 0, $"{nameof(input.Length)} > 0 since {nameof(CanEncryptEmptyMessage)} is false");
try
{
SafeDeleteSslContext sslContext = (SafeDeleteSslContext)securityContext;
SafeSslHandle sslHandle = sslContext.SslContext;
PAL_SSLStreamStatus ret = Interop.AndroidCrypto.SSLStreamWrite(sslHandle, input);
SecurityStatusPalErrorCode statusCode = ret switch
{
PAL_SSLStreamStatus.OK => SecurityStatusPalErrorCode.OK,
PAL_SSLStreamStatus.NeedData => SecurityStatusPalErrorCode.ContinueNeeded,
PAL_SSLStreamStatus.Renegotiate => SecurityStatusPalErrorCode.Renegotiate,
PAL_SSLStreamStatus.Closed => SecurityStatusPalErrorCode.ContextExpired,
_ => SecurityStatusPalErrorCode.InternalError
};
if (sslContext.BytesReadyForConnection <= output?.Length)
{
resultSize = sslContext.ReadPendingWrites(output, 0, output.Length);
}
else
{
output = sslContext.ReadPendingWrites() !;
resultSize = output.Length;
}
return(new SecurityStatusPal(statusCode));
}
catch (Exception e)
{
return(new SecurityStatusPal(SecurityStatusPalErrorCode.InternalError, e));
}
}
public static SecurityStatusPal EncryptMessage(
SafeDeleteContext securityContext,
ReadOnlyMemory <byte> input,
int headerSize,
int trailerSize,
ref byte[] output,
out int resultSize)
{
resultSize = 0;
Debug.Assert(input.Length > 0, $"{nameof(input.Length)} > 0 since {nameof(CanEncryptEmptyMessage)} is false");
try
{
SafeDeleteSslContext sslContext = (SafeDeleteSslContext)securityContext;
SafeSslHandle sslHandle = sslContext.SslContext;
unsafe
{
MemoryHandle memHandle = input.Retain(pin: true);
try
{
PAL_TlsIo status;
lock (sslHandle)
{
status = Interop.AppleCrypto.SslWrite(
sslHandle,
(byte *)memHandle.Pointer,
input.Length,
out int written);
}
if (status < 0)
{
return(new SecurityStatusPal(
SecurityStatusPalErrorCode.InternalError,
Interop.AppleCrypto.CreateExceptionForOSStatus((int)status)));
}
if (sslContext.BytesReadyForConnection <= output?.Length)
{
resultSize = sslContext.ReadPendingWrites(output, 0, output.Length);
}
else
{
output = sslContext.ReadPendingWrites();
resultSize = output.Length;
}
switch (status)
{
case PAL_TlsIo.Success:
return(new SecurityStatusPal(SecurityStatusPalErrorCode.OK));
case PAL_TlsIo.WouldBlock:
return(new SecurityStatusPal(SecurityStatusPalErrorCode.ContinueNeeded));
default:
Debug.Fail($"Unknown status value: {status}");
return(new SecurityStatusPal(SecurityStatusPalErrorCode.InternalError));
}
}
finally
{
memHandle.Dispose();
}
}
}
catch (Exception e)
{
return(new SecurityStatusPal(SecurityStatusPalErrorCode.InternalError, e));
}
}
public static SecurityStatusPal EncryptMessage(
SafeDeleteContext securityContext,
byte[] input,
int offset,
int size,
int headerSize,
int trailerSize,
ref byte[] output,
out int resultSize)
{
resultSize = 0;
Debug.Assert(size > 0, $"{nameof(size)} > 0 since {nameof(CanEncryptEmptyMessage)} is false");
try
{
SafeDeleteSslContext sslContext = (SafeDeleteSslContext)securityContext;
SafeSslHandle sslHandle = sslContext.SslContext;
unsafe
{
fixed(byte *offsetInput = &input[offset])
{
int written;
PAL_TlsIo status = Interop.AppleCrypto.SslWrite(sslHandle, offsetInput, size, out written);
if (status < 0)
{
return(new SecurityStatusPal(
SecurityStatusPalErrorCode.InternalError,
Interop.AppleCrypto.CreateExceptionForOSStatus((int)status)));
}
if (sslContext.BytesReadyForConnection <= output?.Length)
{
resultSize = sslContext.ReadPendingWrites(output, 0, output.Length);
}
else
{
output = sslContext.ReadPendingWrites();
resultSize = output.Length;
}
switch (status)
{
case PAL_TlsIo.Success:
return(new SecurityStatusPal(SecurityStatusPalErrorCode.OK));
case PAL_TlsIo.WouldBlock:
return(new SecurityStatusPal(SecurityStatusPalErrorCode.ContinueNeeded));
default:
Debug.Fail($"Unknown status value: {status}");
return(new SecurityStatusPal(SecurityStatusPalErrorCode.InternalError));
}
}
}
}
catch (Exception e)
{
return(new SecurityStatusPal(SecurityStatusPalErrorCode.InternalError, e));
}
}