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The Direct Project developed implementation guidance with the intent of promoting both flexibility for hosting certificates while also enforcing interoperability for certificate discovery. The resultant guidance arrived at a hybrid approach using DNS and LDAP.
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This diagram represents DCDT's understanding of how the Direct Certificate Discovery Process works. You can cross-reference this with our test data here, which provides more details regarding the Discovery testcases and their associated background certificates.
Underlying Specifications
The following diagram shows how the top-level specification, the implementation guidance developed by the DIRECT Project, pulls in different underlying specifications:
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