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Guardian I/O routines before doing decryption (reading data) or after data has been
encrypted (writing data).
XYGATEDP is the monitor process; that is, it oversees and coordinates the activity of
the other XDP components. XYGATEDP audits system activity into the various audit
files shown.
There is one XDPCPU process running per CPU; XDPCPU maintains a memory
segment that is used to pass information to the XDP enabled programs that are
running in that CPU.
XDPCOM is a utility that is used to query and make changes to the XDP environment
by the XDP macros.
XDPENCR is the standalone encryption program. It is used when installing XDP to
encrypt the application's data for XDP.
XDP Module Components
The XDP module contains the following components:
DPACL File – This is an edit file that contains security and encryption settings for the
application files that are being protected by XDP. There are three different types of
groups in the DPACL file: ACLGroups, DPGroups and ENCRYPTION_Groups.
DPCONF File – This is an edit file that configures global values and is kept in the
same volume and subvolume as the XYGATEDP object file. The DPCONF file
contains the keywords that define the external (global) functionality of the XDP
process.
Encryption Servers - These are Pathway servers that provide the encryption services
on behalf of the XDP Library.
Voltage Key Server - The Voltage key server is an appliance module from Voltage
Security, Inc. that is external to the HPE NonStop system. It provides various services
to the Encryption servers. Credit card data is never encrypted by the Voltage key
server.
XDP Library - This is a library that contains all user callable XDP functions. These
functions are the application's interface to XDP. This library is attached to application
programs by a supplied macro.
XYPRO Technology Corporation
®
XYGATE
Data Protection
Introduction
™
Reference Manual
xvi
Proprietary and Confidential
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