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# x509check

Purpose
Check the compatibility of a private key with an X509 certificate.
Synopsis
`function x509check(x509:string, kfile:string):integer`
Arguments

x509 | File containing the certificate in PEM format
kfile | File containing the private key

Return value
0 if the key is compatible with the certificate, 1 if the key is not compatibe and -1 in the case of an error.
Further information
This function checks whether the public key recorded in the specified certificate corresponds to the provided private key (the certificate can only be used by the owner of the public key).
Related topics
x509getinfo
Module
mmssl
Parent Topic Procedures and functions

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