Linux crypto stuff

Benchmarking some stuff:

Plain (RAW partition)

root@mono:/etc# time dd if=/dev/urandom of=/dev/sda1 bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 25.584 s, 4.1 MB/s

real	0m25.589s
user	0m0.004s
sys	0m25.462s

Blowfish cipher

root@mono:/etc# time dd if=/dev/urandom of=/dev/mapper/swap bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 28.8699 s, 3.6 MB/s

real	0m28.876s
user	0m0.000s
sys	0m25.918s

AES-256 cipher

/dev/mapper/swap is active:
  cipher:  aes-cbc-plain
  keysize: 256 bits
  device:  /dev/sda1
  offset:  0 sectors
  size:    4000122 sectors
  mode:    read/write

root@mono:/etc# time dd if=/dev/urandom of=/dev/mapper/swap bs=1M count=100
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 29.0696 s, 3.6 MB/s

real	0m29.076s
user	0m0.004s
sys	0m25.722s