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+## Keyrelay related functions
+
+### Keyrelay
+
+| Field name        | Required  | Field description |
+| ----------------- |--------------------------- |
+| [ext:keyrelay](#extkeyrelay)            | true     |                  |
+| ext:clTRID         | false   | Client transaction id |
+
+
+### ext:keyrelay
+
+| Field name        | Required |  Field description |
+| ----------------- |----------| ----------------- |
+| ext:name         | true     |   Domain name |
+| [ext:keyData](#extkeydata)            | true     |                        |
+| [ext:authInfo](#extauthinfo)            | true     |                        |
+| [ext:expiry](#extexpiry)            | true     |                       |
+
+### ext:keyData
+
+| Field name        | Required | Field description |
+| ----------------- |----------|----------------- |
+| secDNS:flags         | true     | Allowed values: 0, 256, 257 |
+| secDNS:protocol         | true     | Allowed values: 3 |
+| secDNS:alg         | true     | Allowed values: 3, 5, 6, 7, 8, 252, 253, 254, 255 |
+| secDNS:pubKey         | true     | Public key |
+
+
+### ext:authInfo
+
+| Field name        | Required | Field description |
+| ----------------- |----------|----------------- |
+| domain:pw         | true     | Domain password |
+
+### ext:expiry
+
+| Field name        | Required | Field description |
+| ----------------- |----------|----------------- |
+| ext:relative         | true if ext:absolute is not specified     | Relative expiry duration (ISO8601) |
+| ext:absolute         | true if ext:relative is not specified     | Absolute expiry date (ISO8601) |