martin f krafft <[EMAIL PROTECTED]> writes: > However, doesn't CBC or EBC make sure that every block is > chained to its predecessor, making even the very last block of > a file dependent on the bits of the very first block?
Yes and no. If you change the first block in a set of CBC-chained blocks, the last block will change. But to recover the contents of the last block, you only need the last block and the preceding block (and the key). -- "I was born lazy. I am no lazier now than I was forty years ago, but that is because I reached the limit forty years ago. You can't go beyond possibility." --Mark Twain -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
