[nicephotog]

Has any of the Harappan alphabet been deciphered?
Silly question really!
http://www.sciencedaily.com/releases/2009/08/090803185836.htm

However, if you know your IT and you checked out SSL certificates and hacking theory of cryptography, there is a list of considered time and computer power it takes to crack a certificate of 40 or 56 or 128 or 256 bits.
Why not exclude modern language nouns and their concepts and keep aside a large number of blank nouns for primitive objects and try to work inside a more restricted quantity of valid names and symbols used, alike reserving space in C by calloc() for typedef structs and chunks.