[media-types] Re: [IANA #1448906] application/vnd.re go registration request

On 08/04/2026 13:08, Darrel Miller wrote:

> As rego is a product of the Open Policy Agent project 
> (https://www.cncf.io/projects/open-policy-agent-opa/ 
> <https://www.cncf.io/projects/open-policy-agent-opa/>) which is a 
> Linux Foundation effort, would this not be more appropriate in the 
> standards subtree considering LF is a SDO registered with IESG?
Sure, we can ask. I think it would depend on whether or not the media 
type is already in use.
>
> Darrel
>
> ------------------------------------------------------------------------
> *From:* Alexey Melnikov <[email protected]>
> *Sent:* Wednesday, April 08, 2026 05:45
> *To:* [email protected] <[email protected]>
> *Cc:* [email protected] <[email protected]>
> *Subject:* [media-types] Re: [IANA #1448906] application/vnd.rego 
> registration request
>
> Hi Amanda,
>
> One small comment below, otherwise good to register.
>
> On 31/03/2026 19:47, Amanda Baber via RT wrote:
> > Hi Alexey,
> >
> > Would you be able to review this new request by April 14th?
> >
> > thanks,
> > Amanda
> >
> > =====
> >
> > Name: Amaury Chamayou
> >
> > Email: [email protected]
> >
> > Media type name: application
> >
> > Media subtype name: vnd.rego
> >
> > Required parameters: N/A
> >
> > Optional parameters: N/A
> >
> > Encoding considerations: 8bit
> If lines longer than 1000 octets are allowed, this should be changed to
> "binary".
> > Security considerations: Rego Policies are intended to be parsed, 
> validated, and evaluated by the recipient; however, they may be 
> rejected for the following reasons:
> >
> > a) The sender is not trusted
> > b) The policy is too long
> > c) The policy is not syntactically or semantically valid
> > d) The policy refers to unsupported features by the host
> >
> > A Rego parser, checker, and runtime must be integrated into the host 
> for a policy to be able to be evaluated against inputs. The language 
> itself is not Turing complete, but integrators must take steps to 
> ensure policy evaluation does not exceed acceptable compute and memory 
> constraints.
> >
> > Since the text can contains free-form string literals, it is 
> possible the policy contains sensitive information.
> >
> > Policies should be sent over TLS, or a similar encrypted and 
> integrity-protected channel to the host, to avoid possible tampering 
> during transit, and unauthorized disclosure of information to third 
> parties.
> > Within a local filesystem or access-controlled server, policies may 
> be stored in plain text.
> >
> > Interoperability considerations: The contents of this file are 
> expected to be UTF-8 encoded.
> >
> > Published specification: 
> https://www.openpolicyagent.org/docs/policy-language 
> <https://www.openpolicyagent.org/docs/policy-language>
> >
> > Applications which use this media: Rego is used to enforce policies 
> in microservices, Kubernetes, CI/CD pipelines, API gateways, 
> Transparency Services etc.
> >
> > Fragment identifier considerations: N/A
> >
> > Restrictions on usage: No restrictions
> >
> > Provisional registration? (standards tree only): No
> >
> > Additional information:
> >
> > 1. Deprecated alias names for this type: N/A
> > 2. Magic number(s): N/A
> > 3. File extension(s): .rego
> > 4. Macintosh file type code: N/A
> > 5. Object Identifiers: N/A
> >
> > General Comments:
> >
> > Person to contact for further information:
> >
> > 1. Name: Anders Eknert
> > 2. Email: [email protected]
> >
> > Intended usage: COMMON
> >
> > Author/Change controller: Open Policy Agent
> > (https://github.com/open-policy-agent/opa/blob/main/GOVERNANCE.md, 
> https://github.com/open-policy-agent/opa/blob/main/MAINTAINERS.md) 
> <https://github.com/open-policy-agent/opa/blob/main/MAINTAINERS.md)>
>
> Best Regards,
>
> Alexey
>
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