* kame/sys/crypto/cast128,kame/sys/netinet6/esp_core.c: fixed the cast128 calculation with a short cipher key length. the memory was overridden when the key length was less than 16 bytes.
* kame/sys/crypto/cast128,kame/sys/netinet6/esp_core.c:
fixed the cast128 calculation with a short cipher key length.
the memory was overridden when the key length was less than 16 bytes.

MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame,MarginC/kame