Validating HTTP Cryptographic Signature

Whilst I want to restrict access to to a single company, I am unable to whitelist any CIDRs due to the wide range of IPs used.
They do support other methods which I will list but can I filter this so other non-company connections are blocked?

    • HTTP Authentication in conjunction with encryption
    • Password protected URL
    • Cryptographically signed incoming requests

Does CloudFlare support validating these methods and blocking those that fail?

**Edited Title and Category.

Cloudflare does support authenticated origin pulls, which should be able to accomplish #3 in your list.

While I haven’t tested this too much, it looks like you could use the new Transform Rules feature to add an Authorization header, adding basic HTTP Authentication to requests coming through Cloudflare.

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