Patent ID: 8443014

Claim:
A computer system, comprising: at least one memory device for storing executable program instructions; and at least one processor for executing the program instructions to: generate a request from a first party, the request containing request parameter data to be processed by a web service; generate a Home Banking Computer Interface (HBCI) message containing the request parameter data in response to the request and digitally sign the HBCI message using a private key of the first party; transmit the signed HBCI message to a second party, wherein the second party digitally signs the HBCI message using a private key of the second party after the signature of the first party is verified; generate a first Simple Object Access Protocol (SOAP) envelope containing the HBCI message digitally signed by the first party and the second party; send the first SOAP envelope to the web service; and provide to the first party a second SOAP envelope containing a web service response from the web service.