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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DRIVERS-680] Disable OP_MSG checksums for TLS connections</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-680</link>
                <project id="10980" key="DRIVERS">Drivers</project>
                    <description>&lt;p&gt;Server ticket description : &lt;br/&gt;
We enabled OP_MSG checksums to catch data corruption on the wire in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28679&quot; title=&quot;Compute crc32c checksums on OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28679&quot;&gt;&lt;del&gt;SERVER-28679&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;This work of performing those checksums is extra cost though, and it is redundant when mixed with the hmacs required by tls.&lt;/p&gt;

&lt;p&gt;We lose little on the data integrity side and avoid overhead if we only perform check sums on non-tls connections.&lt;/p&gt;</description>
                <environment></environment>
        <key id="798812">DRIVERS-680</key>
            <summary>Disable OP_MSG checksums for TLS connections</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="rathi.gnanasekaran">Rathi Gnanasekaran</assignee>
                                    <reporter username="rahul.sundararaman@mongodb.com">Rahul Sundararaman</reporter>
                        <labels>
                    </labels>
                <created>Wed, 12 Jun 2019 15:50:51 +0000</created>
                <updated>Fri, 27 May 2022 01:30:48 +0000</updated>
                            <resolved>Mon, 8 Jul 2019 21:12:17 +0000</resolved>
                                                                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2315954" author="rathi.gnanasekaran" created="Mon, 8 Jul 2019 21:12:17 +0000"  >&lt;p&gt;Drivers currently don&apos;t calculate checksum on connections. Therefore, no work for drivers but OP_MSG spec needs to be updated to say don&apos;t calculate checksums when using TLS.&lt;/p&gt;</comment>
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            <issuekey id="788373">SERVER-41490</issuekey>
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