Support for PCI-attached cryptographic adapters

configname: CONFIG_ZCRYPT

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Support for PCI-attached cryptographic adapters
In linux kernel since version 2.6.22 (release Date: 2007-07-08)  
Select this option if you want to use a PCI-attached cryptographic
adapter like:
+ PCI Cryptographic Accelerator (PCICA)
+ PCI Cryptographic Coprocessor (PCICC)
+ PCI-X Cryptographic Coprocessor (PCIXCC)
+ Crypto Express2 Coprocessor (CEX2C)
+ Crypto Express2 Accelerator (CEX2A)