Registries included below
RFC Required
| Value | Acronym | Short Description | Reference |
|---|---|---|---|
| 0 | PKIX-TA | CA constraint | [RFC6698] |
| 1 | PKIX-EE | Service certificate constraint | [RFC6698] |
| 2 | DANE-TA | Trust anchor assertion | [RFC6698] |
| 3 | DANE-EE | Domain-issued certificate | [RFC6698] |
| 4-254 | Unassigned | ||
| 255 | PrivCert | Reserved for Private Use | [RFC6698] |
Specification Required
| Value | Acronym | Short Description | Reference |
|---|---|---|---|
| 0 | Cert | Full certificate | [RFC6698] |
| 1 | SPKI | SubjectPublicKeyInfo | [RFC6698] |
| 2-254 | Unassigned | ||
| 255 | PrivSel | Reserved for Private Use | [RFC6698] |
Specification Required
| Value | Acronym | Short Description | Reference |
|---|---|---|---|
| 0 | Full | No hash used | [RFC6698] |
| 1 | SHA2-256 | 256 bit hash by SHA2 | [RFC6234] |
| 2 | SHA2-512 | 512 bit hash by SHA2 | [RFC6234] |
| 3-254 | Unassigned | ||
| 255 | PrivMatch | Reserved for Private Use | [RFC6698] |