<description>Galois/Counter Mode of AES cipher with 128-bit key</description>
</valueHelp>
<valueHelp>
<format>gcm-aes-256</format>
<description>Galois/Counter Mode of AES cipher with 256-bit key</description>
</valueHelp>
<constraint>
<regex>(gcm-aes-128|gcm-aes-256)</regex>
</constraint>
</properties>
</leafNode>
<leafNode name="encrypt">
<properties>
<help>Enable optional MACsec encryption</help>
<valueless/>
</properties>
</leafNode>
<node name="mka">
<properties>
<help>MACsec Key Agreement protocol (MKA)</help>
</properties>
<children>
<leafNode name="cak">
<properties>
<help>Secure Connectivity Association Key</help>
<valueHelp>
<format>txt</format>
<description>16-byte (128-bit) hex-string (32 hex-digits) for gcm-aes-128 or 32-byte (256-bit) hex-string (64 hex-digits) for gcm-aes-256</description>
</valueHelp>
<constraint>
<regex>[A-Fa-f0-9]{32}</regex>
<regex>[A-Fa-f0-9]{64}</regex>
</constraint>
</properties>
</leafNode>
<leafNode name="ckn">
<properties>
<help>Secure Connectivity Association Key Name</help>