--- title: Change Origin Post-Quantum Encryption setting --- [Skip to content](#_top) [API Reference](https://developers.cloudflare.com/api/go) [Origin Post Quantum Encryption](https://developers.cloudflare.com/api/go/resources/origin_post_quantum_encryption) Copy Markdown Open in **Claude**Open in **ChatGPT**Open in **Cursor** --- **Copy Markdown****View as Markdown** # Change Origin Post-Quantum Encryption setting Deprecated client.OriginPostQuantumEncryption.Update(ctx, params) (\*[OriginPostQuantumEncryptionUpdateResponse](), error) PUT/zones/{zone\_id}/cache/origin\_post\_quantum\_encryption Instructs Cloudflare to use Post-Quantum (PQ) key agreement algorithms when connecting to your origin. Preferred instructs Cloudflare to opportunistically send a Post-Quantum keyshare in the first message to the origin (for fastest connections when the origin supports and prefers PQ), supported means that PQ algorithms are advertised but only used when requested by the origin, and off means that PQ algorithms are not advertised. ##### Security
API Token The preferred authorization scheme for interacting with the Cloudflare API. Create a token. **Example:**Authorization: Bearer Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY
API Email + API Key The previous authorization scheme for interacting with the Cloudflare API, used in conjunction with a Global API key. **Example:**X-Auth-Email: user@example.com The previous authorization scheme for interacting with the Cloudflare API. When possible, use API tokens instead of Global API keys. **Example:**X-Auth-Key: 144c9defac04969c7bfad8efaa8ea194
##### Accepted Permissions (at least one required) `Zone Settings Write``Zone Write` ##### ParametersExpand Collapse
params OriginPostQuantumEncryptionUpdateParams ZoneID param.Field\[string] Path param: Identifier. maxLength32 Link to this property
Value param.Field\[OriginPostQuantumEncryptionUpdateParamsValue] Body param: Value of the Origin Post Quantum Encryption Setting. const OriginPostQuantumEncryptionUpdateParamsValuePreferred OriginPostQuantumEncryptionUpdateParamsValue = "preferred" Link to this property const OriginPostQuantumEncryptionUpdateParamsValueSupported OriginPostQuantumEncryptionUpdateParamsValue = "supported" Link to this property const OriginPostQuantumEncryptionUpdateParamsValueOff OriginPostQuantumEncryptionUpdateParamsValue = "off" Link to this property
Link to this property
[Link to this property](<#(resource)%20origin_post_quantum_encryption%20%3E%20(method)%20update%20%3E%20(params)%20default>) ##### ReturnsExpand Collapse
type OriginPostQuantumEncryptionUpdateResponse struct{…} ID OriginPostQuantumEncryptionUpdateResponseID The identifier of the caching setting. Link to this property Editable bool Whether the setting is editable. Link to this property
Value OriginPostQuantumEncryptionUpdateResponseValue Value of the Origin Post Quantum Encryption Setting. One of the following: const OriginPostQuantumEncryptionUpdateResponseValuePreferred OriginPostQuantumEncryptionUpdateResponseValue = "preferred" Link to this property const OriginPostQuantumEncryptionUpdateResponseValueSupported OriginPostQuantumEncryptionUpdateResponseValue = "supported" Link to this property const OriginPostQuantumEncryptionUpdateResponseValueOff OriginPostQuantumEncryptionUpdateResponseValue = "off" Link to this property
Link to this property ModifiedOn TimeOptional Last time this setting was modified. formatdate-time Link to this property
[Link to this property](<#(resource)%20origin_post_quantum_encryption%20%3E%20(model)%20OriginPostQuantumEncryptionUpdateResponse%20%3E%20(schema)>) ### Change Origin Post-Quantum Encryption setting Go HTTPTypeScriptPythonGoTerraform ``` package main import ( "context" "fmt" "github.com/cloudflare/cloudflare-go" "github.com/cloudflare/cloudflare-go/option" "github.com/cloudflare/cloudflare-go/origin_post_quantum_encryption" ) func main() { client := cloudflare.NewClient( option.WithAPIToken("Sn3lZJTBX6kkg7OdcBUAxOO963GEIyGQqnFTOFYY"), ) originPostQuantumEncryption, err := client.OriginPostQuantumEncryption.Update(context.TODO(), origin_post_quantum_encryption.OriginPostQuantumEncryptionUpdateParams{ ZoneID: cloudflare.F("023e105f4ecef8ad9ca31a8372d0c353"), Value: cloudflare.F(origin_post_quantum_encryption.OriginPostQuantumEncryptionUpdateParamsValuePreferred), }) if err != nil { panic(err.Error()) } fmt.Printf("%+v\n", originPostQuantumEncryption.ID) } ``` 200 example ``` { "errors": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "messages": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "success": true, "result": { "id": "origin_pqe", "editable": true, "value": "preferred", "modified_on": "2014-01-01T05:20:00.12345Z" } } ``` ##### Returns Examples 200 example ``` { "errors": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "messages": [ { "code": 1000, "message": "message", "documentation_url": "documentation_url", "source": { "pointer": "pointer" } } ], "success": true, "result": { "id": "origin_pqe", "editable": true, "value": "preferred", "modified_on": "2014-01-01T05:20:00.12345Z" } } ```