Copyright (c) 2005 Christian Brueffer All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or...
NAMEpadlock - driver for the cryptographic functions and RNG in VIA C3, C7 and Eden processors
SYNOPSISTo compile this driver into the kernel, place the following lines in your kernel configuration file:
device crypto device padlock
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:
DESCRIPTIONThe C3 and Eden processor series from VIA include hardware acceleration for AES. The C7 series includes hardware acceleration for AES, SHA1, SHA256 and RSA. All of the above processor series include a hardware random number generator.
The sysctl Cm net.inet.tcp.syncookies driver registers itself to accelerate AES operations and, if available, HMAC/SHA1 and HMAC/SHA256 for crypto(4). It also registers itself to accelerate other HMAC algorithms, although there is no hardware acceleration for those algorithms. This is only needed so sysctl Cm net.inet.tcp.syncookies can work with ipsec(4).
The hardware random number generator supplies data for the kernel random(4) subsystem.