0.3 First ALPHA releases

0.4 Pass phrase iv; double pass phrases. 

0.5 Root filesystem encrytption

0.6 Block major 63. Better user messages.

0.7 Whitening to make life much harder for an attacker.
    Compatibility across different host file block sizes.
    First version for the 2.2 kernel series.

0.8 The crypto is in a routine which knows
    nothing about the kernel structures.

    De/encrypt available without kernel support.
    Can also be used for "conventional encryption"
    of normal files and/or doing backups. They also
    allow you to use pgp public-key encryption of
    the backups.

    Better random numbers for the keys. Also the -s
    option to ppddinit.

    Much better makefile.

    First steps towards data integrity with ppddscum
    and md5 hashes in ppdecrypt and ppdncrypt.

0.9 More on checksums.
    SMP safe.
    Enforce block size of 1024.
    Filesystems > 2Gb supported.
    Floppy bootdisk.
    At last.. the man pages!!

1.0 Official device code (92) and ioctls

1.1 -B switch to get past blocksize problems with 
    some type of scsi cd-roms

1.2 Bug fix. The use of ppddpassw -e ...... could
    destroy the key block and make the data unusable.

2.0 Use the crypto api and the cryptoloop instead of our
    own driver. This is a major change in the philosophy
    but the encryption method stays the same and files are
    compatible with 1.2.
