let decryptor = aes.CreateDecryptor (key, iv)
new CryptoStream (inputStream, decryptor, CryptoStreamMode.Read)
+ // Create a stream to compute the HMAC-SHA256 against all data being written.
let HMACStream (key: byte[]) (outputStream: Stream) : Stream * HMACSHA256 =
assert (key.Length = 32)
let hmac = new HMACSHA256 (key)
- new CryptoStream (outputStream, hmac, CryptoStreamMode.Write) :> Stream, hmac
-
- (*type HMACStream (buffer: byte[], output: Stream) =
- inherit Stream ()
- override this.CanRead with get () = false
- override this.CanSeek with get () = false
- override this.CanWrite with get () = true
- override this.Length with get () = raise <| new NotSupportedException ()
- override this.Position with get () = raise <| new NotSupportedException ()
- and set _ = raise <| new NotSupportedException ()
- override this.Flush () =
- output.Flush ()
- override this.Read (_: byte[], _: int, _: int) = raise <| new NotSupportedException ()*)
\ No newline at end of file
+ new CryptoStream (outputStream, hmac, CryptoStreamMode.Write) :> Stream, hmac
\ No newline at end of file