Ipsec Function; D.2.3 Ipsec Function - HP Compaq D315 Technical Reference Manual

Appendix D Compaq/Intel Network Interface Controller Adapters

D.2.3 IPSEC FUNCTION

The 82550 controller used on the Intel PRO/100 S Management Adapter includes an encryption
engine that provides on-the-fly encryption and/or authentication of transmit data without
additional use of system memory and software. This function, referred to as IP security (IPSEC),
uses a configurable algorithm and established Data Encryption Standards (DES) to provide high
performance (full transmission rate) encryption. Received IPSEC data frames are re-submitted to
the controller for processing and then returned to the driver.
Key features of IPSEC support include:
♦
Encryption capability of 56-bit DES to 168-bit 3DES
♦
Out-of-order processing of non-security transmit frames during security mode
♦
SHA-1 and MD-5 authentication with optional HMAC cryptographic hashing
D-4 hp/Compaq Personal Computers
Changed - April 2003