END-TO-END DATA INTEGRITY PROTECTION FOR PCI-EXPRESS BASED INPUT/OUTPUT ADAPTER

摘要

PROBLEM TO BE SOLVED: To provide end-to-end data integrity protection for data transferred between an input/output bus and an external network. SOLUTION: A method, a system and a computer program are provided for protecting the integrity of data transferred between the input/output bus of a data processing system and the external network. A method for protecting the integrity of data includes a step of generating a CRC value on an interface between the input/output bus and an adapter for data being transferred from the input/output bus to the network, and a step of checking a CRC value on the interface between the input/output bus and the adapter for data being transferred from the network to the input/output bus. By adding a CRC generator and a CRC checker on the interface between the input/output bus and the adapter, end-to-end data integrity protection is provided for data transferred. COPYRIGHT: (C)2006,JPO&NCIPI