# CRL Support

Certificate Revocation List (CRL) is used with SSL transfers to ensure the SSL certificates have not been revoked.

CRL support provides an additional way to verify that certificates submitted to TIBCO MFT Platform Server are from a trusted source.

A CRL list is a list of digital certificates, more specifically of serial numbers for certificates that have been revoked. Therefore, the SSL transfers based on revoked certificates are no longer performed. For more information on CRLs, see http://www.ietf.org/rfc/rfc3280.txt.

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