Abstract: A method, system, and computer usable program product for token caching in a trust chain processing are provided in the illustrative embodiments. An information in a token associated with a first request is mapped. A determination is made whether a requester of the first request has provided a constraint in the first request, the constraint concerning the token, the constraint forming a client constraint. The client constraint is stored. The information and the mapped information is stored, forming stored information. The token is received in a second request. The stored information is reused if the client constraint allows reusing the stored information. A further determination may be made whether a target system receiving the mapped information has provided a server constraint, the second constraint concerning the mapped information, the second constraint forming a server constraint. The stored information may be reused if the server constraint allows reusing the stored information.

Abstract: A method, system, and computer usable program product for token caching in a trust chain processing are provided in the illustrative embodiments. An information in a token associated with a first request is mapped. A determination is made whether a requester of the first request has provided a constraint in the first request, the constraint concerning the token, the constraint forming a client constraint. The client constraint is stored. The information and the mapped information is stored, forming stored information. The token is received in a second request. The stored information is reused if the client constraint allows reusing the stored information. A further determination may be made whether a target system receiving the mapped information has provided a server constraint, the second constraint concerning the mapped information, the second constraint forming a server constraint. The stored information may be reused if the server constraint allows reusing the stored information.

Abstract: A method, system, apparatus, and computer program product are presented for transparently adding digital signature functionality to web servers in order to extend the web servers to generate and enforce signatures on transaction data on behalf of web applications that are processing transactions. A server plug-in intercepts transaction data that is submitted by a client to a web application. The plug-in returns a document containing the intercepted transaction data along with an applet that is executable at the client. When the applet is executed at the client, it generates a digital signature on the transaction data using a key that is stored at the client and returns a different document with the intercepted transaction data and with the newly generated signature. The plug-in validates the signature, records the signature in server-side log file, returns a signature receipt to the client, and forwards the transaction data to the destination web application.