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RichardSmedley merged 1 commit into from
Jan 9, 2026
Merged

Choose your own Cipher Suite Adventure! #470

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29 changes: 29 additions & 0 deletions modules/howtos/pages/managing-connections.adoc
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Expand Up @@ -237,6 +237,35 @@ E.....@.@.............+....Z.'yZ..#........
====


=== Choosing your Cipher Suite

If your organization's security policy requires using specific TLS cipher suites,
you can specify which ciphers to use with
link:++https://docs.couchbase.com/sdk-api/couchbase-core-io/com/couchbase/client/core/env/SecurityConfig.Builder.html#ciphers(java.util.List)++[the `security.ciphers` client setting].

For example:

[source,java]
----
Cluster cluster = Cluster.connect(
connectionString,
ClusterOptions.clusterOptions(username, password)
.environment(env -> env
.securityConfig(sec -> sec
.ciphers(List.of(
// TLS 1.3 cipher suites supported by
// Java and Couchbase Server.
"TLS_AES_128_GCM_SHA256",
"TLS_AES_256_GCM_SHA384"
)))));
----

To check which ciphers are available on a self-managed Couchbase Server installation, run:

[source,console]
----
/opt/couchbase/bin/couchbase-cli setting-security -c localhost -u Administrator -p password --get
----


== Quarkus Java Extension
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