User guide

Chapter 13: Security Functions for Web Services (SOAP)
13-2
Digital Signature Function
The digital signature (SOAP digital signature) function is used to attach a digital signature to SOAP
messages and to verify the digital signature attached to SOAP messages. By using this function, the
creation or approval of the SOAP messages signed by the signer can be guaranteed. Also, by verifying
the digital signature attached to the SOAP messages, it can be guaranteed that the data in the messages
has not been modified.
Figure 13-1 Digital Signature Function