Anonymous HIBE ⇒ HIBE

Anonymous HIBE implies HIBE.

Statement

Migrated verbatim from hierarchical-identity-based-encryption § Anonymous HIBE:

An anonymous HIBE additionally hides the recipient identity $\overrightarrow{id}$ from the ciphertext, so an eavesdropper learns neither the payload nor the intended recipient.

Notes

source: folklore: the claim carried no citation on the page it was migrated from, and none was invented.

class: unstated: no citing page says which notion of reduction is meant. Recording a class the wiki does not state would add a claim.

Recorded during migration and not fixed — these are claims about the source text, not changes to it:

• Variation section: anonymous HIBE is a strengthening of HIBE; the implication (anonymous HIBE ⇒ HIBE) is implicit, never asserted.
• No slug ‘anonymous-hibe’ exists in content/.
• No citation.