Hi I'm trying to fix some problems in dm-crypt that it may report authentication failures when the user reads data with O_DIRECT and modifies the read buffer while it is being read.
I'd like to ask you: 1. If the authenticated encryption encrypts a message, reading from buffer1 and writing to buffer2 - and buffer1 changes while reading from it - is it possible that it generates invalid authentication tag? 2. If the authenticated encryption decrypts a message, reading from buffer1 and writing to buffer2 - and buffer2 changes while writing to it - is is possible that it reports authentication tag mismatch? Mikulas
