The sdice passphrase generator
This is a simple passphrase generator written in C for Unix-like systems which uses simple1024: a word list with 1024 English words between 3 and 6 characters, providing exactly 10 bits of entropy per word. This project previously used a slightly modified version of EFF's Short Wordlist #1 which is still available in case you prefer it (see eff_short1.h).
The default optimization level of GCC should produce the expected binary, but you should always review the assembler output generated by your compiler, and most important, do not use this program if you don't understand its potential attack vectors; using a real dice is usually safer :)