|-
| '''Errors'''
|{{Error|FOCX0015|XQuery Errors#Cryptographic Functions Errors}} the signature element cannot be found.<br/>{{Error|FOCX9994|XQuery Errors#Cryptographic Functions Errors}} an unspecified problem occurs during validation.<br/>{{Error|FOCX9996|XQuery Errors#Cryptographic Functions Errors}} an IO exception occurs during validation.<br/>
|-
| '''Example'''