Intel EP80579 Benutzerhandbuch

Intel

®

 EP80579 Software for Security Applications on Intel

®

 QuickAssist Technology

PG

August 2009

58

Order Number: 320183-004US

The Intel

®

 QuickAssist Technology Cryptographic API for the Lookaside Model is 

described in the API user reference document 

. Most of the API functions 

support both asynchronous and synchronous invocation, except for those used to 

initialize and remove sessions and for getting statistics which support synchronous 

invocation only. This chapter provides a brief overview of the API.

•

 and 

: New Note to explain shim support

The API is documented in the 

 document. The API can be split into three 

broad areas. These are as follows:

• Common: The cpa.h, cpa_cy_common.h and icp_lac_cfg.h files define common 

API, enums and so on, which both the symmetric and asymmetric APIs use.

• Instance Management: The cpa_cy_im.h file defines the functions for managing 

instances. 

• Symmetric: The cpa_cy_sym.h file contains the symmetric API for hashing, 

cipher, algorithm chaining and authenticated encryption. The cpa_cy_key.h file 

icp_AsdCfgLacInit

Initialize the Cryptographic Service setting up all static data 

tables.

icp_AsdCfgLacShutdown

Shutdown the Cryptographic Service, therefore cleaning up all 

resources owned by the module

icp_AsdCfgLacStart

Start the Cryptographic services, it is assumed at this point 

Cryptographic has been initialized. 

icp_AsdCfgLacStop

Stop the Cryptographic services.

These APIs are called by the ASD component to ensure correct initialization/shutdown procedures.

cpaCyStartInstance

This function will initialize and start the Cryptographic 

component.

cpaCyStopInstance

This function will stop the Cryptographic component and free all 

system resources associated with it.