public String getKmsKeyId() {
        return this.kmsKeyId;
    }
<p>
Specifies the KMS key ID to use to encrypt the logs delivered by CloudTrail. The value can be an alias name
prefixed by <code>alias/</code>, a fully specified ARN to an alias, a fully specified ARN to a key, or a globally
unique identifier.
</p>
<p>
CloudTrail also supports KMS multi-Region keys. For more information about multi-Region keys, see <a
href="https://docs.aws.amazon.com/kms/latest/developerguide/multi-region-keys-overview.html">Using multi-Region
keys</a> in the <i>Key Management Service Developer Guide</i>.
</p>
<p>
Examples:
</p>
<ul>
<li>
<p>
<code>alias/MyAliasName</code>
</p>
</li>
<li>
<p>
<code>arn:aws:kms:us-east-2:123456789012:alias/MyAliasName</code>
</p>
</li>
<li>
<p>
<code>arn:aws:kms:us-east-2:123456789012:key/12345678-1234-1234-1234-123456789012</code>
</p>
</li>
<li>
<p>
<code>12345678-1234-1234-1234-123456789012</code>
</p>
</li>
</ul>

@return Specifies the KMS key ID to use to encrypt the logs delivered by CloudTrail. The value can be an alias
        name prefixed by <code>alias/</code>, a fully specified ARN to an alias, a fully specified ARN to a key,
        or a globally unique identifier.</p>
        <p>
        CloudTrail also supports KMS multi-Region keys. For more information about multi-Region keys, see <a
        href="https://docs.aws.amazon.com/kms/latest/developerguide/multi-region-keys-overview.html">Using
        multi-Region keys</a> in the <i>Key Management Service Developer Guide</i>.
        </p>
        <p>
        Examples:
        </p>
        <ul>
        <li>
        <p>
        <code>alias/MyAliasName</code>
        </p>
        </li>
        <li>
        <p>
        <code>arn:aws:kms:us-east-2:123456789012:alias/MyAliasName</code>
        </p>
        </li>
        <li>
        <p>
        <code>arn:aws:kms:us-east-2:123456789012:key/12345678-1234-1234-1234-123456789012</code>
        </p>
        </li>
        <li>
        <p>
        <code>12345678-1234-1234-1234-123456789012</code>
        </p>
        </li>
aws-java-sdk-cloudtrail/src/main/java/com/amazonaws/services/cloudtrail/model/CreateTrailRequest.java