<?xml version="1.0" encoding="UTF-8"?><!--Serialized by the GTRI Trustmark Framework API, version: 1.4.74--><tf:TrustInteroperabilityProfile xmlns:tf="https://trustmarkinitiative.org/specifications/trustmark-framework/1.4/schema/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><tf:Identifier>https://artifacts.trustmarkinitiative.org/lib/tips/nist-sp-800-53-r4-security-control-sc-17_-public-key-infrastructure-certificates/4/</tf:Identifier><tf:Name>NIST SP 800-53 r4 Security Control SC-17: Public Key Infrastructure Certificates</tf:Name><tf:Version>4</tf:Version><tf:Description>Profile of requirements corresponding to NIST Special Publication 800-53, r4, Security Control SC-17: Public Key Infrastructure Certificates. Applicable to MODERATE impact and HIGH impact systems.</tf:Description><tf:PublicationDateTime>2021-04-26T00:00:00.000Z</tf:PublicationDateTime><tf:Primary>false</tf:Primary><tf:LegalNotice>This document and the information contained herein is provided on an "AS IS" basis, and the Georgia Tech Research Institute disclaims all warranties, express or implied, including but not limited to any warranty that the use of the information herein will not infringe any rights or any implied warranties or merchantability or fitness for a particular purpose. In addition, the Georgia Tech Research Institute disclaims legal liability for any loss incurred as a result of the use or reliance on the document or the information contained herein.</tf:LegalNotice><tf:Issuer><tf:Identifier>https://trustmarkinitiative.org/</tf:Identifier><tf:Name>TMI</tf:Name><tf:Contact><tf:Kind>PRIMARY</tf:Kind><tf:Responder></tf:Responder><tf:Email>help@trustmarkinitiative.org</tf:Email><tf:Telephone>555-555-5555</tf:Telephone><tf:WebsiteURL>https://trustmarkinitiative.org/</tf:WebsiteURL></tf:Contact></tf:Issuer><tf:Keywords><tf:Keyword>800-53</tf:Keyword><tf:Keyword>Communications Protection</tf:Keyword><tf:Keyword>High</tf:Keyword><tf:Keyword>Moderate</tf:Keyword><tf:Keyword>NIST</tf:Keyword><tf:Keyword>P1</tf:Keyword><tf:Keyword>Public Key Infrastructure Certificates</tf:Keyword><tf:Keyword>Security</tf:Keyword><tf:Keyword>System</tf:Keyword></tf:Keywords><tf:References><tf:TrustmarkDefinitionRequirement tf:id="TD_ref1"><tf:TrustmarkDefinitionReference><tf:Identifier>https://artifacts.trustmarkinitiative.org/lib/tds/public-key-infrastructure-certificates-obtained-from-approved-service-provider/1.0/</tf:Identifier><tf:Number>1</tf:Number><tf:Name>Public Key Infrastructure Certificates Obtained From Approved Service Provider</tf:Name><tf:Version>1.0</tf:Version><tf:Description>Defines conformance and assessment criteria for verifying that an organization obtains public key certificates from an approved service provider.</tf:Description></tf:TrustmarkDefinitionReference></tf:TrustmarkDefinitionRequirement><tf:TrustmarkDefinitionRequirement tf:id="TD_ref2"><tf:TrustmarkDefinitionReference><tf:Identifier>https://artifacts.trustmarkinitiative.org/lib/tds/public-key-infrastructure-certificates-issued-by-organization/1.0/</tf:Identifier><tf:Number>2</tf:Number><tf:Name>Public Key Infrastructure Certificates Issued By Organization</tf:Name><tf:Version>1.0</tf:Version><tf:Description>Defines conformance and assessment criteria for verifying that an organization issues public key certificates under an [Assignment: organization-defined certificate policy].</tf:Description></tf:TrustmarkDefinitionReference></tf:TrustmarkDefinitionRequirement></tf:References><tf:TrustExpression><![CDATA[TD_ref1 and TD_ref2]]></tf:TrustExpression><tf:Sources><tf:Source tf:id="Source-2112165102"><tf:Identifier>SP800-53R4</tf:Identifier><tf:Reference>NIST Special Publication 800-53 Revision 4, Security and Privacy Controls for Federal Information Systems and Organizations, National Institute of Standards and Technology, April 2013 (Includes updates as of 01-15-2014). Available at &lt;a href="http://dx.doi.org/10.6028/NIST.SP.800-53r4"&gt;http://dx.doi.org/10.6028/NIST.SP.800-53r4&lt;/a&gt;.</tf:Reference></tf:Source></tf:Sources></tf:TrustInteroperabilityProfile>